11381 Preisdatenbank Los(e) gefunden, die Ihrer Suche entsprechen

A lady's steel Rolex Oyster Perpetual superlative chronometer officially certified wristwatch, with pink index/Arabic dial and Oyster bracelet with Oyster lock clasp, case diameter 26mm, length 175mm, bracelet w.13mm, serial No. U067J346, model No. 176200, complete with box and guarantee, tags and two spare links

A gents stainless steel Rolex Oyster perpetual superlative chronometer officially certified watch, having a silver Arabic/index dial, fitted to an Oyster bracelet with Oyster lock clasp, automatic movement, case dia.34mm, model ref. 114200, serial No.6643U074, clasp ref. 6QT, overall length 210mm, bracelet width 19 to 16mm, gross weight 115g, with box and guarantee dated 3rd December 2019, spare link and tags enclosedIn working order.Scratches to case, clasp and bracelet

A gents bi-metal Rolex Oyster Perpetual Datejust superlative chronometer officially certified wristwatch, having round champagne index dial, fluted bezel and Jubilee bracelet with Oyster lock clasp, automatic movement, case diameter 36mm, model ref. 16233, serial No. L458593, circa 1989, clasp ref. 62523H-18, length 210mm, bracelet width 20 to 18mm, gross weight 100.9g In working order.Dial stained.Case and bezel scratched.Bracelet worn.No box or guaranteee.Case back not opened.

Gentleman's Tag Heuer Kirium wrist watch, model WL5113-0, with a circular blue dial, date aperture, silvered Arabic numerals and dot markers, inscribed "Chronometer Officially Certified 200 Meters", surrounded by a rotating bezel, enclosing a Swiss automatic chronometer movement, stainless steel case and bracelet, Dia.38mm approx.Condition:Working when catalogued. Scratches all round, but lenticle and dial is good. Clasps engages well. Watch could benefit from a clean

A gents Everose gold Rolex Oyster Perpetual DayDate superlative chronometer officially certified wristwatch, with meteorite dial set with eight round brilliant and two baguette cut diamonds and fluted bezel, automatic movement, President bracelet and crown clasp, model ref. 118255, serial No. Z366639, clasp ref. 15/301OP10, case dia.36mm, bracelet length 220mm, width 20 to 18mm, gross weight 176.5g, hallmarked 18ct Austria, with box and outer boxIn working order.Minor scratches to case and bracelet.No guarantee but recent valuation.Replacement box.Current model.The watch is accompanied by two insurance valuations, including one for June this year and has been valued as genuine.

A rare Pilkington Gibbs brass helio-chronometer, the rim engraved PILKINGTON & GIBBS LTD. PRESTON ENGLAND, produced between 1907 and 1914

Omega: A Steel and Gold Plated Calendar Centre Seconds Wristwatch, signed Omega, Chronometer, model: Constellation, ref: 1980140, 1980's, (calibre 1431) quartz battery movement signed, textured champagne coloured dial with dot markers, date aperture, case with a gold plated bezel and Roman numerals, snap-on steel back with Constellation logo and numbered 1431, inside back cover stamped Omega Watch Co and numbered 3980866, Omega steel and gold plated bracelet with a deployant clasp numbered 1392/012, with Omega Constellation box and instruction booklet34mm wideCase and bracelet with surface scratches, bracelet clasp with Omega logo insert missing, bezel with black missing from the Roman numerals, crown with Omega logo, glass is clean, dial is clean, hand setting correctly, date changing correctly, movement in going order.

Omega: A Plated Electronic Day/Date Centre Seconds Wristwatch, signed Omega, Chronometer F300 Hz, model: Constellation, ref: 198.0034, 1973, (calibre 1260) battery tuning fork movement signed and numbered 36879584, two tone champagne coloured dial with baton markers and marked CF for the company, day/date apertures, plated tonneau shaped case with a stainless steel back with an engraved presentation inscription, inside back cover stamped Omega Watch Co and numbered 1980034 37mm widecase lugs with slight rubbing marks to the plated surfaces, case with surface scratches, back cover with an engraved presentation inscription "R.A.Anderson 25 Years CF 1952-1977", later crown not by Omega, later strap and buckle not by Omega, Omega plexi glass with small scratches, dial is clean, dial with CF company logo, hand setting correctly, calendars are changing correctly, movement in going order.

Omega: A Gold Plated Automatic Calendar Centre Seconds Wristwatch, signed Omega, Chronometer Officially Certified, model: Constellation, ref: 168.010, 1967, (calibre 564) lever movement signed and numbered 25707773, adjusted to five positions and temperature, silvered dial with baton markers, date aperture, case with steel screw back with Constellation logo, inside back cover stamped Omega Watch Co and numbered 168010, Omega plated bracelet with a deployant clasp numbered 106835mm wideCase and bracelet with slight rubbing to the plated surfaces in parts, case and bracelet links are dirty in parts, back cover with very faintly inscribed with numbers, back cover with small opening tool scratches, Omega plexi glass with minor scratches, crown with Omega logo, hand setting correctly, date is changing correctly, quick date change is working, movement in going order.

Omega: A Stainless Steel Electronic Calendar Centre Seconds Wristwatch, signed Omega, Chronometer F300Hz, ref: 198.002, 1970, (calibre 1250) battery tuning fork movement signed and numbered 32888473, two tone silvered dial with baton markers, date aperture, red centre seconds hand, tonneau shaped case, screw back with a Constellation logo, back cover stamped inside Omega Watch Co and numbered 198.00237mm wideCase with surface scratches and minor dents in parts, case back with opening tool scratch marks, later bracelet not by Omega, crown with Omega logo, Omega plexi glass with small scratches, original dial finish with minor scratches visible under an eyeglass, hand setting correctly, date changing correctly, movement in going order.

Christopher Ward: A Titanium Automatic Calendar Centre Seconds Dual Time Zone Wristwatch, signed Christopher Ward, 1000m/3300ft, model:C60 Trident 1000 Elite Chronometer GMT, ref: C60-42AGM3-T0BB0-B0, circa 2020, (calibre SW330-1) lever movement signed, blue dial with baton markers, date aperture, outer 24 hour white chapter ring with corresponding orange 24 hour hand, case with blue 60 minute scale rotating bezel, screw down crown, glazed screw back numbered AAM-554, Christopher Ward titanium bracelet with a deployant clasp, with Christopher Ward boxes, guarantee card, booklets, two spare bracelet links and spare Christopher Ward Orange/blue rubber strap 42mm wide Case and bracelet with surface scratches, glass is clean, crown is screwing down correctly on the threaded tube, hand setting correctly, calendar is working correctly, movement in going order.

Christopher Ward: A Stainless Steel Automatic Centre Seconds Wristwatch, signed Christopher Ward, Chronometer, model: C65 Dartmoor Series 1, ref: C65-41A3H1-S0BB0, circa 2020, (calibre SW200) lever movement, blue coloured dial with dagger markers, case with black rotating 60 minute scale bezel, screw back with Royal Naval crown insignia and numbered AAI-192, Christopher Ward stainless steel bracelet with a deployant clasp, with Christopher Ward boxes, guarantee card, chronometer certificate, instruction booklet, two spare bracelet links and a spare Christopher Ward fabric strap41mm wideCase and bracelet with light surface scratches, bezel with two small scratches between 40 - 45 minute scale position, rotating bezel with one minor dent next to the 60 minute scale position, glass is clean, dial is clean, hand setting correctly, movement in going order.

Omega: A Plated Electronic Calendar Centre Seconds Chronometer Wristwatch, signed Omega, F300Hz Chronometer, model: De Ville, ref: 198.0032, 1972, (calibre 1250) electronic tuning fork movement signed and numbered 34665992, champagne coloured dial with baton markers, date aperture, stainless steel screw back stamped inside Omega Watch Co and numbered 198003235mm wideCase with surface scratches, case with minor dents in parts, back cover with some opening tool scratches, Omega crown is slightly rubbed, later bracelet not by Omega, Omega plexi glass with small scratches and one very minor chip to the edge of the glass at 3 o'clock position, dial is clean, quick date change is working, minute hand is moving when hand setting the watch, but the hour hand is not moving at present and needs attention when serviced. Movement in going order with centre seconds hand moving correctly.

Schiffs-Chronometer "Poljot", um 1960Erste Moskauer Uhrenfabrik Kirova. Marinechronometer, Serien-Nr. 26269, zweiteiliger Mahagoni39kasten mit Glasscheibe, kardanisch gelagertes Messingwerk, mit Schnecke und Kette, Sekundenzeiger für 1/2 Sekunden, Gangreserve-Anzeige für 56 Stunden, komplett mit Schlüssel. Funktioniert! - Dieses Modell wurde nach dem Vorbild des Einheits-Chronometers von Lange aus Glashütte in der Sowjetunion hergestellt. Start Price: EUR 450 Zustand: (2/2)Poljot Two-Day Marine Chronometer, c. 1960First Moscow Clock Factory Kirova. No. 26269, with fusee movement, second hand for 1/2 seconds, power reserve indicator for 56 hours, two-part mahogany wood case with glass pane and gimbaled brass mount, working, with key. This clock was modeled on the Lange standard chronometer by Glashütte. Start Price: EUR 450 Condition: (2/2)

2 Schweizer Präzisionsgeräte von FAVAG, um 1960FAVAG/Neuchâtel. 1) Steuergerät für ein Zeitintervall, mit Zeituhr und Steckkontakten mit französischer Beschriftung, 110/220 Volt, geeignet z.B. für ein Tachistoskop. - Und: 2) Bandchronograph, ähnlicher Aufbau wie bei einem Morse-Empfänger, Federwerkantrieb. Das Gerät verwendet 4 Nadeln anstelle von Stiften, um eine Reihe von feinen Einstichen auf dem Papierstreifen zu erzeugen. Dieses Gerät reproduziert in graphischer Form die Zeitaufzeichnung durch einen Chronometer und das Okularmikrometer eines astronomischen Theodoliten. Mit Haube. Start Price: EUR 180 Zustand: (2-3/-)2 Swiss Precision Instruments by FAVAG, c. 1960FAVAG/Neuchâtel. 1) Control unit for a time interval, with time clock and plug-in contacts with French lettering, 110/220 volts, suitable e.g. for a tachistoscope. - And: 2) Tape chronograph, similar construction to a Morse receiver, spring-drive, with 4 needles instead of pins to produce a series of fine punctures on the paper tape, for reproduction in graphic form the time record of a chronometer and the ocular micrometer of an astronomical theodolite, with lid. Start Price: EUR 180 Condition: (2-3/-)

Schiffs-Chronometer von Thomas Mercer, um 1965Signiert "Thomas Mercer Ltd, St Albans, England", Serien-Nr. 26933, zweiteiliger Mahagonikasten mit Glasscheibe, in gepolstertem Transportkasten, kardanisch gelagertes Messingwerk, mit Schnecke und Kette, versilbertes Zifferblatt, römische Zahlen, gebläute Zeiger, Sekundenzeiger für 1/2 Sekunden, Gangreserve-Anzeige für 56 Stunden, komplett mit Schlüssel. Funktioniert! Start Price: EUR 650 Zustand: (2-3/2)Two-Day Marine Chronometer by Thomas Mercer, c. 1965Signed "Thomas Mercer Ltd, St Albans, England", no. 26933, with gilt full-plate brass single-chain fusee movement, silvered dial, outer minute ring, Roman chapters, subsidiary seconds, 56-hour winding indicator, blued hands, gimbal-mounted in glazed mahogany deck box within cushioned guard case, working condition, with key. Start Price: EUR 650 Condition: (2-3/2)

2 Schweizer Präzisionsgeräte von FAVAG, um 1960FAVAG/Neuchâtel. 1) Schaltgerät mit Excelsior-Park-Chronograph, mit 4 Steckkontakten und verstellbarer Lupe. - Und: 2) Bandchronograph, ähnlicher Aufbau wie bei einem Morse-Empfänger, Federwerkantrieb. Das Gerät verwendet 4 Nadeln anstelle von Stiften, um eine Reihe von feinen Einstichen auf dem Papierstreifen zu erzeugen. Dieses Gerät wird verwendet, um in Verbindung mit einem Chronometer und dem Okularmikrometer eines astronomischen Theodoliten deren Zeitaufzeichnung in grafischer Form zu reproduzieren. Mit Haube. Start Price: EUR 180 Zustand: (3/-)2 Swiss Precision Instruments by FAVAG, c. 1960FAVAG/Neuchâtel. 1) Switchgear with Excelsior Park Chronograph, with 4 plug-in contacts and adjustable magnifier. - And: 2) Tape chronograph, similar construction to a Morse receiver, spring-drive, with 4 needles instead of pins to produce a series of fine punctures on the paper tape, for reproduction in graphic form the time record of a chronometer and the ocular micrometer of an astronomical theodolite, with lid. Start Price: EUR 180 Condition: (3/-)

A FINE GEORGE II POCKET WATCH MOVEMENT WITH CYLINDER ESCAPEMENTGEORGE GRAHAM, LONDON, NUMBER 6077, CIRCA 1742The gilt full plate single fusee movement with four square baluster pillars pinned through the backplate, scroll-pierced stop-iron block and cylinder escapement regulated by sprung three-arm steel balance with Tompion type regulation, the backplate with fine symmetric foliate scroll pierced and engraved balance cock with faceted diamond endstone, herringbone bordered canted rim and with wedge-shaped scroll engraved foot flanked by silvered regulation disc set within adjacent applied scroll engraved panel infill opposing signature Geo. Graham, London and numbered 6077, with gilt brass dust cover similarly signed Geo. Graham, London.The pillar plate 3.5cm (1.375ins) diameter. Provenance:The Leonard Fuller Collection. Purchased from Gerald E. Marsh, Winchester, 11th December 2004 as part of a package deal comprising the oval pre-haispring watch by Vallier and two other watch movements by John Knibb and Thomas Tompion for a total of £14,000. George Graham was born in around 1673 in Kirklinton, Cumberland, but by 1688 he had moved to London and entered into an apprenticeship with Henry Aske. Graham gained his freedom of the Clockmakers' Company in 1695 and went to work for Thomas Tompion, whose niece, Elizabeth, he married at St. Mary le Bow in September 1704. After the Tompion's failed partnership with Edard Banger Graham was trusted to become his successor with the two makers entering into a formal a partnership in 1711. On Tompion's death in 1713 George Graham inherited the business 'on the corner of Water Lane in Fleet Street' and continued there until 1720 when he relocated to 'the Dial and One Crown' further up Fleet Street, nearer Fleet Bridge.George Graham maintained the same exacting standards as his former master and also continued the serial numbering system established in around 1680/81. In 1722 he served as Master of the Clockmakers' Company and went on to establish himself as one of the most important clockmakers of his generation. Amongst his achievements was the further development of the deadbeat escapement, invention of the mercury compensated pendulum and the cylinder watch escapement. As well as clocks and watches George Graham was also a highly accomplished maker of scientific instruments with perhaps his most famous creation being the planetarium made for Charles Boyle, Earl of Orrery. He also produced the great mural quadrant for Edmund Halley at Greenwich observatory, also a fine transit instrument and the zenith sector used by James Bradley in his discoveries. Through his observations in testing his very highly regarded compasses Graham also discovered the diurnal variation in the terrestrial magnetic field in 1722/23.George Graham also became an ardent supporter of John Harrison in the development of his marine chronometers to the extent that he forwarded an interest free private loan of £200 to Harrison to facilitate the building of H1. George Graham died in 1751 and was buried next to his former master in Westminster Abbey, leaving the business in the hands of a former apprentices, Samuel Barclay and Thomas Colley. George Graham's legacy is perhaps best reflected by the subsequent work of another former apprentice, Thomas Mudge, who went on to continue in the development of the marine chronometer after Harrison, and to invent the lever watch escapement. The cylinder escapement was developed in around 1695 by Thomas Tompion and further refined by George Graham in 1726. This new escapement was perhaps the first developed exclusively for watch work and, as well as being a better rate keeper, the cylinder escapement also allowed movements to be made more compact (due to the escapement operating in one plane only). However, being a form of frictional rest escapement, the cylinder escapement was prone to relatively heavy rates of wear hence was less reliable than the verge (until hardened steel escape wheels and ruby cylinders were developed later in the 18th century). George Graham's faith in this new design of escapement was such that he incorporated it into all of his watches from around 1725/6 (between serial numbers 5175 and 5182). Condition Report: The movement is complete and in working condition. The train appears all-original with the probable exception of the escape wheel which is probably a 'service replacement'. Some of the steelwork (most notably the minute hand post and winding squares) is oxidised and the silvered regulation disc is discoloured. The backcock securing screw is a little chewed. The movement retains gilt finish to wheelwork (except escape wheel) and to the plates with minimal wear/scratching. The dust cover is missing its steel slide latch and is generally discoloured/oxidised but would no doubt clean very well. The dial mounting plate is present but with solder residue from a previous alternative mounting (although there appears to be no additional modifications/holes etc). The hour wheel/tube is present. Movement has a winding key. Condition Report Disclaimer

AN OAK AND CAST BRASS OFFICE WALL TIMEPIECETHOMAS MERCER, St. ALBANS, MID 20th CENTURYThe eight-day single going barrel movement with four cylindrical pillars screwed through the front and rear, and platform lever escapement regulated by sprung monometallic balance, the frosted backplate signed MERCER, ST. ALBANS ENGLAND and numbered 002519, the 9.5 inch square silvered brass Roman numeral dial also signed MERCER, ST. ALBANS ENGLAND and with blued steel spade hands, set behind heavy hinged glazed cast brass bezel with silvered canted insert to interior and locking screw clasp, the square case worked from one piece of oak.The front 25.5cm (10ins) square, 8cm (3.25ins) deep. Provenance:Acquired by the vendor direct from Mercer where it was believed to have been used in their St. Albans offices. The chronometer making firm Thomas Mercer of St. Albans was established by Thomas Mercer (1822-60) at North Road, London in 1858 before moving to 45 Spencer Street, Clerkenwell in 1860. Mercer became an active member of the British Horological Institute (established in 1858) where he lectured on the need to modernise the industry and served as honorary treasurer from 1875-95. After occupying several addresses in Clerkenwell Mercer relocated the core of the business to St. Albans in 1874 setting up a factory behind his house at 14-15 Prospect Road. Although the bulk of the businesses work was undertaken in St. Albans Mercer personally made weekly trips to Clerkenwell to deliver/collect parts finished by specialist outworkers as well as visit the Horological Institute. In order to maintain a presence in London Thomas Mercer opened an outlet 18 Westmoreland Road, City Road in 1890. Succuss at the Greenwich trials was also always considered important to Mercer who entered instruments every year; he was placed second in 1881 and his son, Frank, came first in 1911. In 1900 Thomas Mercer accepted an invitation to judge at the Universal Exhibition in Paris but unfortunately caught a cold on the ferry crossing and died soon after his return. The business was subsequently continued by his successors becoming of the most prolific suppliers of chronometers and other timepiece for industrial, maritime and domestic purposes and continued trading in St Albans until 1984. 

A FRENCH LOUIS PHILIPPE GILT BRASS ALARM CARRIAGE CLOCK WITH CALENDAR BOURDIN, PARIS, CIRCA 1845The two train eight-day bell striking movement with gilt platform lever escapement regulated by sprung monometallic balance, the rectangular silvered brass Roman numeral dials with blued steel arrow hands over twin subsidiary Arabic numeral dials for date-of-the-month and alarm setting, the early multipiece bevel-glazed case with hinged baton carrying handle over large rectangular glass, ogee top mouldings and rounded uprights to angles, the rear with gilt brass panel incorporating graduated regulation slide to upper margin over signature Bourdin H'r du Roi, 24 R. de la Paix, PARIS and shuttered winding, hand setting and alarm adjustment holes, on cavetto moulded skirt base also with rounded angles, (calendar and alarm currently inoperative).14cm (5.5ins) high with handle down, 9cm (3.5ins) wide, 7cm (2.75ins) deep. A.E. Bourdin is recorded in Allix, Charles and Bonnert, Peter CARRIAGE CLOCKS, Their history and development as being awarded medals for carriage clocks in the Paris Expositions; Bronze 1844, Silver 1855 and Bronze again in 1866. A very fine complex four-train grande-sonnerie striking chronometer carriage clock with calendar by Bourdin is illustrated by Allix and Bonnert on page 110 (Plates V/7-8). 

A LEATHER CARRYING CASE FOR AN EIGHT-DAY CHRONOMETER CARRIAGE TIMEPIECETHOMAS MERCER, ST. ALBANS, CIRCA 1975Of rectangular form with hinged overlapping lid embossed in gilt Thomas Mercer, Est. 1858 to front edge over sliding dial panel decorated with leaf motifs, the sides with brass locking clasps for the lid over mounting points for the tubular leather carrying handle, the interior with blue velvet top cushion and base lining.20.5cm (8ins) high excluding strap handle, 18cm (7ins) wide, 13cm (5.125ins) deep. The chronometer making firm Thomas Mercer of St. Albans was established by Thomas Mercer (1822-60) at North Road, London in 1858 before moving to 45 Spencer Street, Clerkenwell in 1860. Mercer became an active member of the British Horological Institute (established in 1858) where he lectured on the need to modernise the industry and served as honorary treasurer from 1875-95. After occupying several addresses in Clerkenwell Mercer relocated the core of the business to St. Albans in 1874 setting up a factory behind his house at 14-15 Prospect Road. Although the bulk of the businesses work was undertaken in St. Albans Mercer personally made weekly trips to Clerkenwell to deliver/collect parts finished by specialist outworkers as well as visit the Horological Institute. In order to maintain a presence in London Thomas Mercer opened an outlet 18 Westmoreland Road, City Road in 1890. Succuss at the Greenwich trials was also always considered important to Mercer who entered instruments every year; he was placed second in 1881 and his son, Frank, came first in 1911. In 1900 Thomas Mercer accepted an invitation to judge at the Universal Exhibition in Paris but unfortunately caught a cold on the ferry crossing and died soon after his return. The business was subsequently continued by his successors becoming of the most prolific suppliers of chronometers and other timepiece for industrial, maritime and domestic purposes and continued trading in St Albans until 1984. The present lot was made to house a lacquered brass eight-day chronometer carriage clock f a design produced by Mercer during the 1970's. An example of this type (from the collection of Michael Hurst) was sold in these rooms on 22nd March 2022 (lot 155) for £3,500. 

A VICTORIAN MAHOGANY CASED TWO-DAY MARINE CHRONOMETERCHARLES FRODSHAM, LONDON, CIRCA 1880The circular four pillar single chain reversed fusee movement with six-spoke wheel crossings, Harrison's maintaining power, jewelled pivots for the escape wheel, Earnshaw type spring detent escapement regulated by split bimetallic balance with keystone-shaped compensation weights, helical balance spring and faceted endstone, the spotted backplate with spring set-up ratchet, blued steel movement pillar and backcock securing screws, and signed Charles Frodsham, London to outer margin, the 4 inch circular silvered Roman numeral dial with subsidiary seconds dial beneath signature CHARLES FRODSHAM, 84 STRAND, LONDON, No., 3479 across the centre and Up/Down, 0-56 power reserve dial flanked by BY APPOINTMENT TO THE QUEEN and GOLD MEDAL OF HONOUR, PARIS EX'N, 1855 medallions set beneath the X and II numerals respectively, with gold spade hands and secured by a screw-down bezel into a lacquered brass bowl with shuttered winding hole to underside, mounted via gimbals along with a typsy winding key into a brass reinforced mahogany box with the middle tier applied with a vacant ivory roundel to front, the inside of the upper tier with pasted paper trade label for W. BROCKING, CHRONOMETER & UHRMACHER, MAMBURG..., the top surface of the second tier with vacant shaped brass cartouche and capped corners, over conforming inset strap reinforced angles and carrying handles to sides; with a baize lined wooden guard box.The chronometer box 18.5cm (7.25ins) high, 18cm (7ins) square; the guard box 24.5cm (9.75ins) high, 33cm (13ins) wide, 25.5cm (10ins) deep. Charles Frodsham was born in 1810 into a family of clockmakers with his grandfather, William originating from Cheshire before moving to London prior to 1781 where he was admitted to the Clockmaker's Company. His son, William James, had six sons, four of whom joined the firm of Parkinson and Frodsham in London; whilst Charles, the third born son set-up on his own at Barnes Place, Islington in 1834. He moved to 12 Finsbury Pavement in 1836 then to number 7 in 1838. On the death of the renowned chronometer maker John Roger Arnold in 1843 Charles Frodsham acquired the business and began trading as 'Arnold, Charles Frodsham' from 84 Strand, London. Unusually Frodsham was not admitted to the Clockmaker's Company until 1845 but went on to serve as master twice in 1855 and 1862; he was also a founder member of the British horological Institute in 1858.Charles Frodsham became one of the most eminent chronometer makers of his generation who served as a juror in the 1852 International Exhibition held at South Kensington where he also showed a month duration marine chronometer with experimental 'Duo-in-uno' balance springs and three different forms of compound balance. In 1854 he purchased the 'goodwill' of the late Benjamin Lewis Vulliamy's business which led to his appointment as Superintendent and Keeper of Her Majesty's clocks at Buckingham Palace. Charles Frodsham died of liver disease in January 1871 and was succeeded by his son, Harrison Mill Frodsham. The business became Charles Frodsham and Company and in 1884 and then was incorporated as a limited Company in 1893 before relocating to 115 New Bond Street, London two years later where they remained well into the Twentieth Century. The firm is still trading today (from 32 Bury Street, London) as specialist in chronometer, watch and clock makers. Condition Report: IVORY LICENCE ZZB8KYDZCondition Report Disclaimer

A RARE AMERICAN WWII MAHOGANY CASED TWO-DAY MARINE CHRONOMETERROTH BROTHERS CHRONOMETER COMPANY, NEW YORK, CIRCA 1944The circular four pillar single chain fusee movement with five-spoke wheel crossings, Harrison`s maintaining power and Earnshaw type spring detent escapement regulated by monometallic balance incorporating twelve timing screws, with palladium alloy helical balance spring and faceted diamond endstone, the spotted backplate with polished pillar screws and separate mainspring pivot plate applied with spring set-up ratchet, the outer margin inscribed Roth Bros. Chronometer Co., New York U.S.A. No. 7 and U.S. Maritime Commission 1944 the 4 inch circular silvered Arabic numeral dial with subsidiary seconds dial inscribed M within a circle, beneath signature ROTH BROTHERS CHRONOMETER CO., NEW YORK U.S.A. to the centre and DOWN/UP 0-56 state of wind dial at twelve o'clock, secured by a screw-down bezel into a lacquered brass bowl and mounted via gimbals alongside the brass typsy winding key into a brass reinforced stained mahogany three tier box with glazed top to middle tier, brass capped top corners, inset strap reinforced angles, and hinged carrying handles to sides.19cm (7.5ins) high, 19cm (7.5ins) wide, 19.5cm (7.75ins) deep.  Roth Brothers of New York were initially contracted (from circa 1942) by the U.S. Maritime Commission to source pre-owned chronometers, pocket chronometer movements and other accurate watch movements (such as rail watches and even automobile timepieces - mostly by makers such as Waltham) for re-casing and use on naval vessels. By 1944 Roth Brothers had started production of their own marine chronometers to satisfy demand from the war effort. However, mostly due to competition from Hamilton - who ramped-production of chronometers from around 1942 (most notably their model 21), Roth Brothers production run was very small hence very few Chronometers by them survive. Condition Report: Movement is in relatively clean working condition with no visible evidence of alteration of noticeable replacements. The dial has a couple of very slight spots of discolouration otherwise has good even silvering and strong bluing to the hands. The bowl and gimbals have overall mellowing and minor wear/oxidation to the lacquered finishes but are otherwise in fine condition. Case has overall light surface scratches, minor bumps and wear to the polish otherwise is in fine original condition.Chronometer has a typsy winding key, no case key is required. Condition Report Disclaimer

Y&nbspA VICTORIAN BRASS STRUNG EBONY BOX FOR AND EIGHT-DAY MARINE CHRONOMETERANONYMOUS, THIRD QUARTER OF THE 19th CENTURYOf three tier construction with typsy winding key support, brass gimbal pivot pins and locking lever to interior, beneath the hinged glazed middle tier with vacant recess for name panel to front, the second tier with ruffled blue velvet lining to interior and vacant brass shield cartouche within double line borders and brass capped rounded edges to upper surface, over conforming front and recessed carrying handles to sides (no gimbals or typsy winding key present); with two Victorian mahogany chronometer guard boxes, anonymous, second half of the 19the century, one for an eight-day chronometer the second for a smaller two-day, both with drilled deck mounting flanges to sides at the base, (3).The chronometer box 23cm (9ins) high, 21cm (8.25ins) square; the larger guard box 25.5cm (10ins) high, 33cm (13ins) wide at the base, 25.5cm (10ins) deep. 

A VICTORIAN GILT BRASS CARRIAGE TIMEPIECEROSS, EXETER, MID 19th CENTURYThe rectangular single train four columnar pillar movement with frosted plates and platform lever escapement regulated by sprung monometallic balance with jewelled endstone set within a foliate scroll engraved cock, the backplate signed Ross, EXETER over hand setting disk and winding square incorporating visible ratchet and pawl retained by a foliate scroll engraved cock, the 1.75 inch wide rectangular white enamel Roman numeral dial with gilt spade hands, set within a gilt mast decorated with twin Gothic gabled towers over panelled apron, the gilt brass electrotype case with hinged rams head and leafy scroll cast handle over pierced tracery amber glazed rose-window top panel incorporating 'engine-turned' borders and relief floral sprays to spandrels, within fine geometric tracery surround applied with oval finials to angles, with cavetto moulded cornice over three-quarter columns to angles incorporating stylised rococo scroll decoration to shafts, the sides and relief decorated with 'Strawberry Hill Gothic' style facades of five bays with the central ogee-gabled and with rose window, the rear hinged revealing a relief modelled panel with the Royal coat of arms over PATENT, on skirt base decorated with a Gothic arcade incorporating floral swags over ball feet.15.5cm (6.125ins) high with handle down, 10cm (4ins) square. Daniel Ross is recorded in Ponsford, C.N. Time in Exeter as a chronometer, watch and clockmaker who commenced business at 31 High Street Exeter in 1831. He relocated to 230 High Street in 1855 and then to Bedford Street in 1859. He closed the business in 1864 due to poor eyesight selling his stock in trade to a clockmaker by the name of Ellis. Condition Report: Movement is in clean working condition. The dial has a hairline crack to the enamel across the upper right-hand corner otherwise appears free from visible faults. The case is in very good condition with only minor oxidation/discolouration to the gilding and a few very light surface scuffs. Timepiece has a winding key.Condition Report Disclaimer

Y&nbspA FINE VICTORIAN BRASS INLAID ROSEWOOD CASED TWO-DAY MARINE CHRONOMETERCHARLES FRODSHAM, LONDON, CIRCA 1880The circular four pillar single chain reversed fusee movement with six-spoke wheel crossings, Harrison's maintaining power, jewelled pivots for the escape wheel, Earnshaw type spring detent escapement regulated by split bimetallic balance with keystone-shaped compensation weights, helical balance spring and faceted endstone, the spotted backplate with spring set-up ratchet, blued steel movement pillar and backcock securing screws, and signed Charles Frodsham, London to outer margin, the 4 inch circular silvered Roman numeral dial with subsidiary seconds dial beneath signature CHARLES FRODSHAM, 84 STRAND, LONDON, No., 3521 across the centre and Up/Down, 0-56 power reserve dial flanked by BY APPOINTMENT TO THE QUEEN and GOLD MEDAL OF HONOUR, PARIS EX'N, 1855 medallions set beneath the X and II numerals respectively, with gold spade hands and secured by a screw-down bezel into a lacquered brass bowl with shuttered winding hole to underside, mounted via gimbals into a brass strung and edged three tier box with typsy winding key beneath the hinged glazed middle tier applied with mother-of-pearl roundel engraved CHA'S FRODSHAM, 85 Strand, LONDON, No. 3521 to front, the top surface of the second tier with vacant brass shield cartouche within double line borders and brass capped edges, over conforming front and recessed carrying handles to sides.18.5cm (7.25ins) high, 18cm (7ins) wide, 18cm (7ins) deep. Provenance:The Leonard Fuller collection. Purchased From Charles Frodsham, London, 14th November 1967 for £185. Charles Frodsham was born in 1810 into a family of clockmakers with his grandfather, William originating from Cheshire before moving to London prior to 1781 where he was admitted to the Clockmaker's Company. His son, William James, had six sons, four of whom joined the firm of Parkinson and Frodsham in London; whilst Charles, the third born son set-up on his own at Barnes Place, Islington in 1834. He moved to 12 Finsbury Pavement in 1836 then to number 7 in 1838. On the death of the renowned chronometer maker John Roger Arnold in 1843 Charles Frodsham acquired the business and began trading as 'Arnold, Charles Frodsham' from 84 Strand, London. Unusually Frodsham was not admitted to the Clockmaker's Company until 1845 but went on to serve as master twice in 1855 and 1862; he was also a founder member of the British horological Institute in 1858.Charles Frodsham became one of the most eminent chronometer makers of his generation who served as a juror in the 1852 International Exhibition held at South Kensington where he also showed a month duration marine chronometer with experimental 'Duo-in-uno' balance springs and three different forms of compound balance. In 1854 he purchased the 'goodwill' of the late Benjamin Lewis Vulliamy's business which led to his appointment as Superintendent and Keeper of Her Majesty's clocks at Buckingham Palace. Charles Frodsham died of liver disease in January 1871 and was succeeded by his son, Harrison Mill Frodsham. The business became Charles Frodsham and Company and in 1884 and then was incorporated as a limited Company in 1893 before relocating to 115 New Bond Street, London two years later where they remained well into the Twentieth Century. The firm is still trading today (from 32 Bury Street, London) as specialist in chronometer, watch and clock makers. Condition Report: Movement is in clean working condition with only a few very slight patches of light oxidation to the brasswork. The dial is in fine condition with barely noticeable mellowing and a couple of tiny pin-pricks of oxidation. The bowl and gimbals are in fine original condition but with some noticeable localised oxidation to the brass - mainly to the bezel. There is also some very slight patchy discolouration to the canted silvered bezel (inset behind the glass). The underside of the bowl is engraved with H.S. and government arrow device. The box is generally in very good original condition however the lock is a replacement and there is a small filled bruise just to the left of the escutcheon.Timepiece is complete with a typsy winder and a key for the box. Condition Report Disclaimer

AN ELIZABETH II COMMEMORATIVE SILVER CASED MINIATURE 'HUMP-BACK' CARRIAGE TIMEPIECECHARLES FRODSHAM, LONDON 1978The eight-day four pillar going barrel movement with Swiss gilt platform lever escapement regulated by spring monometallic balance, the 2.350 inch arched gilt brass dial with two banners inscribed Cha's Frodsham & Co., London, England to centre within applied silver Roman numeral chapter ring, with blued steel moon hands over inscription Elizabeth of Glamis flanked by a pair of rose blooms, the arched case with curb link carrying chain to the top over half-round mouldings bordering the glazed dial aperture and hinged rear door engraved with a banner inscribed SERIAL No. 212/800, on four conical feet, marks for London 1980 maker TC.8cm (3.125ins) high, 7cm (2.25ins) wide, 4.5cm (1.75ins) deep. Charles Frodsham was born in 1810 into a family of clockmakers with his grandfather, William originating from Cheshire before moving to London prior to 1781 where he was admitted to the Clockmaker's Company. His son, William James, had six sons, four of whom joined the firm of Parkinson and Frodsham in London; whilst Charles, the third born son set-up on his own at Barnes Place, Islington in 1834. He moved to 12 Finsbury Pavement in 1836 then to number 7 in 1838. On the death of the renowned chronometer maker John Roger Arnold in 1843 Charles Frodsham acquired the business and began trading as 'Arnold, Charles Frodsham' from 84 Strand, London. Unusually Frodsham was not admitted to the Clockmaker's Company until 1845 but went on to serve as master twice in 1855 and 1862; he was also a founder member of the British horological Institute in 1858.Charles Frodsham became one of the most eminent chronometer makers of his generation who served as a juror in the 1852 International Exhibition held at South Kensington where he also showed a month duration marine chronometer with experimental 'Duo-in-uno' balance springs and three different forms of compound balance. In 1854 he purchased the 'goodwill' of the late Benjamin Lewis Vulliamy's business which led to his appointment as Superintendent and Keeper of Her Majesty's clocks at Buckingham Palace. Charles Frodsham died of liver disease in January 1871 and was succeeded by his son, Harrison Mill Frodsham. The business became Charles Frodsham and Company and in 1884 and then was incorporated as a limited Company in 1893 before relocating to 115 New Bond Street, London two years later where they remained well into the Twentieth Century. The firm is still trading today (from 32 Bury Street, London) as specialist in chronometer, watch and clock makers.  The present timepiece was produced as a part of a limited edition run of 800 examples to commemorate the life of Queen Elizabeth the Queen Mother. Condition Report: Movement is complete and in working condition however a gentle clean/service is advised. The dial appears free form visible faults other than some very light dust deposits (only visible on very close examination). Case is in fine original condition with no visible damage although it would benefit from a clean/polish. There is no winding key present. Condition Report Disclaimer

A RARE TWO-DAY SURVEY CHRONOMETERTHOMAS MERCER, ST. ALBANS, MODEL S. C. 2, SECOND QUARTER OF THE 20th CENTURYThe circular four pillar single chain fusee movement with Harrison's maintaining power, jewelled pivots for the escape and seconds wheels, Earnshaw type spring detent escapement regulated by split bimetallic balance with cylindrical compensating weights, helical palladium balance spring and jewelled endstone, the spotted backplate with spring set-up ratchet and blued-steel pillar and backcock securing screws, the 4 inch circular silvered Arabic numeral twenty-four hour 'sidereal' dial with subsidiary seconds dial incorporating open centre revealing ratchet-tooth wheel for opening and closing electrical contacts with the beat of the escapement at six o'clock, within annotation in red CAUTION: HANDS, FORWARD ONLY below signature THOMAS MERCER, MAKER TO THE, ADMIRALTY, Eywood Rd., St. Albans across the centre, and DOWN/UP, 0-56 power reserve dial numbered 15420 beneath twelve o'clock, with blued steel spade hands and red Arabic five minutes beyond the outer minute track, set beneath a screw-down chrome-plated bevel-glazed bezel incorporating pivoted dust cap to the winding square aperture, mounted onto a disc collar incorporating START/STOP lever and insulated electrical contact screws engaging with sprung contact posts fitted to the exterior of the cylindrical aluminium case, complete with typsy winding key and contained within an outer green canvas covered field case fitted with brass capped corners, leather carrying strap and applied printed metal label inscribed MINISTRY OF DEFENCE, HYDROGRAPHIC DEPT., CHRONOMETER SURVEY, Stores Ref. H.S.527-3635, Serial No. 14240 to front; with a second spare field case and a canvas sheet.The box 17cm (6.75ins) high, 28cm (11ins) wide, 21cm (8.25ins) deep. The chronometer making firm Thomas Mercer of St. Albans was established by Thomas Mercer (1822-60) at North Road, London in 1858 before moving to 45 Spencer Street, Clerkenwell in 1860. Mercer became an active member of the British Horological Institute (established in 1858) where he lectured on the need to modernise the industry and served as honorary treasurer from 1875-95. After occupying several addresses in Clerkenwell Mercer relocated the core of the business to St. Albans in 1874 setting up a factory behind his house at 14-15 Prospect Road. Although the bulk of the businesses work was undertaken in St. Albans Mercer personally made weekly trips to Clerkenwell to deliver/collect parts finished by specialist outworkers as well as visit the Horological Institute. In order to maintain a presence in London Thomas Mercer opened an outlet 18 Westmoreland Road, City Road in 1890. Succuss at the Greenwich trials was also always considered important to Mercer who entered instruments every year; he was placed second in 1881 and his son, Frank, came first in 1911. In 1900 Thomas Mercer accepted an invitation to judge at the Universal Exhibition in Paris but unfortunately caught a cold on the ferry crossing and died soon after his return. The business was subsequently continued by his successors becoming of the most prolific suppliers of chronometers and other timepiece for industrial, maritime and domestic purposes and continued trading in St Albans until 1984. The current chronometer was developed by Mercer for surveying purposes. Fitted with electrical contacts and rated to sidereal time the timepiece is designed to be used in conjunction with a ticker-tape chronograph (see previous lot) and an Admiralty pattern 45 degree prismatic Astrolabe or theodolite (to allow accurate measurement of angular distance, or 'zenith distance' between a given star and the zenith). The very accurate timing of the zenith distance of a given star can provide precise 'local time', and, through comparison with Greenwich meantime, allow accurate longitude and latitude of the observer to be established. 

AN EDWARDIAN/GEORGE V MAHOGANY CASED TWO-DAY MARINE CHRONOMETERVICTOR KULLBERG, LONDON, CIRCA 1910The circular four pillar single chain reversed fusee movement with Harrison's maintaining power, jewelled pivots for the escape wheel, Earnshaw type spring detent escapement and split bimetallic balance incorporating Kullberg's early form of middle-error temperature compensation with cylindrical weights and helical invar or palladium balance spring, the spotted backplate with spring set-up ratchet, jewelled endstone, blued steel movement pillar and backcock securing screws, and the frontplate stamped 8327 to inside edge, the 4 inch circular silvered Roman numeral dial with subsidiary seconds dial incorporating concentric engraved text 11 GOLD MEDALS AWARDED * DIPLOMA OF HONOUR SOLE & HIGHEST AWARD VIENNA 1873 around the centre inscribed with serial number 8327, beneath signature VICTOR KULLBERG, Maker to the Admiralty, THE INDIAN & ITALIAN GOVERNMENTS, 105 Liverpool Rd., London N. and WIND DOWN/UP, 0-56 power reserve dial flanked by To H.M. KING, SWEDEN and GRAND PRIX, PARIS, 1900 medallions set beneath the X and II numerals respectively, with blued steel spade hands and secured by a screw-down bezel into a lacquered brass bowl with shuttered winding hole to underside, mounted via gimbals into a mahogany two-tier box, with ivory plate engraved VICTOR KULLBERG, TWO DAYS, 8327 to front and with recessed lacquered brass carrying handles to sides, the inside of the second tier applied with printed paper repairers label for J. SEWILL..., LIVERPOOL inscribed in ink Cleaned..., Jan 1941, (the box originally fitted with a third top tier); with a later baize lined wooden guard box.The box 17cm (6.75ins) high, 18.5cm (7.25ins) square; the guard box 21.5cm (8.5ins) high, 29cm (11.5ins) wide, 24.5cm (10.25ins) deep. Provenance:The personal collection of the former owners of Marine Instruments Limited, Falmouth, Cornwall. Victor Kullberg is recorded in Mercer, Tony Chronometer Makers of the World as born in Sweden 1824, he was apparently drawn to London by the Great Exhibition of 1851 and subsequently set up business at 105 Liverpool N1 (by 1870). Kullberg developed several balances with middle error temperature compensation and became one of the finest makers of marine chronometers of the period; he died in 1890 leaving the business to be continued by George and Peter Wannerstrom.  A closely related chronometer by Kullberg (number 8074 dated 1910) which was supplied to the India Office for use at Colaba Observatory, Bombay, was sold in these rooms on 6th September 2022 (lot 62) for £1,900 hammer. Condition Report: Timepiece is in good original condition with no visible evidence of alteration or noticeable replacements other than the spring set-up ratchet wheel on the backplate; it is running but a gentle service is required. The plates retain original spotted finish with some patchy discolouration/oxidation in areas. The dial has some very slight patchy degradation to the protective lacquer otherwise is in very good original condition. The bowl and gimbals are in good original condition retaining old lacquer finish albeit showing slight moderate oxidation/wear. The box is in good original relatively clean condition with faults limited to relatively minor surface scratches, wear and a few light bumps and scuffs; as catalogued the top tier is no longer present. The lining to the guard box is in good condition, the exterior has a few light surface scratches and the leather strap handle is broken; there are also some old pasted paper labels to the surface.Instrument has a typsy winding key but no box key.IVORY LICENCE 5XELQ5LWCondition Report Disclaimer

A MAHOGANY CASED TWO-DAY MARINE CHRONOMETER INSCRIBED FOR THE CORONATION OF QUEEN ELIZABETH IITHOMAS MERCER, ST. ALBANS, 1953The circular four pillar single chain fusee movement with Harrison's maintaining power, jewelled pivots for the escape and seconds wheels, Earnshaw type spring detent escapement regulated by split bimetallic balance with cylindrical compensating weights, helical palladium balance spring and jewelled endstone, the spotted backplate with spring set-up ratchet and blued-steel pillar and backcock securing screws, the inside of the backplate and reverse of the dial mounting plate both stamped 20350, the 4 inch circular silvered Roman numeral dial with subsidiary seconds dial engraved 20350 over monogram 19 ER 53 at six o'clock, below signature THOMAS MERCER LTD, ST. ALBANS, ENGLAND across the centre and DOWN/UP, 0-56 power reserve dial beneath twelve o'clock, the lower margin of the chapter ring further inscribed THOMAS MERCER LTD. St. ALBANS ENG., secured by a screw-down bezel into a lacquered brass bowl with shuttered winding hole to rear and stamped with matching serial number 20350 to interior, mounted via gimbals into a mahogany two tier box with typsy winding key beneath glazed lid and applied with brass plate inscribed SUPPLIED BY, ETABLISSEMENTS VIALLET, 8 RUE BEAUVAU 8, MARSEILLE FRANCE, No. 20350 to front; with original padded baize-lined wooden guard box.The chronometer box 17cm (6.25ins) high, 19cm (7.5ins) square; the guard box 21.5cm (8.5ins) high, 29cm (11.5ins) wide, 24.5cm (10.25ins) deep. Provenance:The personal collection of the former owners of Marine Instruments Limited, Falmouth, Cornwall. The chronometer making firm Thomas Mercer of St. Albans was established by Thomas Mercer (1822-60) at North Road, London in 1858 before moving to 45 Spencer Street, Clerkenwell in 1860. Mercer became an active member of the British Horological Institute (established in 1858) where he lectured on the need to modernise the industry and served as honorary treasurer from 1875-95. After occupying several addresses in Clerkenwell Mercer relocated the core of the business to St. Albans in 1874 setting up a factory behind his house at 14-15 Prospect Road. Although the bulk of the businesses work was undertaken in St. Albans Mercer personally made weekly trips to Clerkenwell to deliver/collect parts finished by specialist outworkers as well as visit the Horological Institute. In order to maintain a presence in London Thomas Mercer opened an outlet 18 Westmoreland Road, City Road in 1890. Succuss at the Greenwich trials was also always considered important to Mercer who entered instruments every year; he was placed second in 1881 and his son, Frank, came first in 1911. In 1900 Thomas Mercer accepted an invitation to judge at the Universal Exhibition in Paris but unfortunately caught a cold on the ferry crossing and died soon after his return. The business was subsequently continued by his successors becoming of the most prolific suppliers of chronometers and other timepiece for industrial, maritime and domestic purposes and continued trading in St Albans until 1984.  Condition Report: Timepiece is in fine original working condition with no visible evidence of alteration or noticeable replacements. The movement retains its original finish albeit with two noticeable areas of oxidation/tarnishing to the backplate as well as lesser discolouration to other areas. The dial has some patchy degradation to the protective lacquer coat otherwise is in fine original condition. The bowl and gimbals are in good original condition retaining old surface with some patchy oxidation/rubbing etc. The box is undamaged but also has overall rubbing and scratching to the original polish finish. Tye lining to the guard box has two small moth holes otherwise is in good condition. The exterior has a few light surface scratches and scuffs and is now lacking its strap carrying handle.Instrument is complete with its typsy winding key.Condition Report Disclaimer

A RUSSIAN SOVIET ERA MAHOGANY CASED TWO-DAY MARINE CHRONOMETERKIROV CLOCK FACTORY, MOSCOW, MODEL MX-6 THIRD QUARTER OF THE 20th CENTURYThe circular four pillar engine turned gilt single chain reverse fusee movement with five-spoke wheel crossings, Harrison`s maintaining power and Earnshaw type spring detent escapement regulated by Guillaume type split bimetallic `integral` balance with cylindrical compensating weights, palladium alloy helical balance spring and faceted diamond endstone, the backplate with polished pillar screws and separate mainspring pivot plate applied with spring set-up ratchet and stamped with a crown trademark over number 01782, the 3.75 inch circular silvered Arabic numeral dial with subsidiary seconds dial inscribed with serial number 01782 in red and inscription in Cyrillic followed by CCCP, beneath signature also in Cyrillic to the centre and 0-56 state of wind dial at twelve o'clock, secured by a screw-down bezel into a lacquered brass bowl and mounted via gimbals alongside the brass typsy winding key into a stained mahogany two tier box with glazed top, the front applied with rectangular brass trade plate with number 8916-77 flanked by brass strap reinforced edges and hinged carrying handles to sides, (box top tier lacking).17cm (6.75ins) high, 19cm (7.5ins) wide, 19cm (7.5ins) deep. Provenance:The personal collection of the former owners of Marine Instruments Limited, Falmouth, Cornwall. The First State Watch Factory was founded in 1930 under the instructions of Stalin using machinery imported from the then defunct Ansonia Clock Company of Brooklyn and the Dueber-Hampden Watch Factory of Canton, Ohio, U.S.A. In 1935 the factory was named after the murdered Soviet official Sergei Kirov. After a short period of evacuation, due to the threat on Moscow by Germany, the factory was re-established in 1941 with the name revised to `First Moscow Watch Factory, Kirov`. From 1952 the factory produced marine chronometers (based on the A. Lange and Son, Glashutte M4568 chronometer in use during WWII) of which the current lot is a good example. In 1961 the factory`s products were branded Poljot (flight) in honour of Yuri Gagarin succeeding as the first man in space on 2nd April of that year. The manufacturing of watches still continues on the same site today - mainly producing watches for the Volmax brand. Condition Report: The movement is in relatively clean working condition however there is some light oxidation to the rear of the dial plate. The plates have additional holes to allow for electrical contacts to be fitted (to drive/operate slave dials or other instruments) but these accessories appear never to have been fitted. The dial is in fine, clean condition. The bowl and gimbals retain old/original lacquer but with noticeable oxidation/light Verdigris mainly to the walls of the bowl. As catalogued the case does not have its top tier otherwise is in good original condition with faults limited to only very minor bumps and scuffs.Timepiece has a typsy winding key. No case key is required. Condition Report Disclaimer

AN EARLY VICTORIAN SMALL TWO-DAY MARINE CHRONOMETER HENRY FRODSHAM, LIVERPOOL, CIRCA 1850 The circular four pillar single chain fusee movement with spotted plates, Harrison's maintaining power, Earnshaw type spring detent escapement, split bimetallic balance with keystone-shaped compensation weights, helical balance spring and faceted diamond endstone, set behind brass bayonet fitting movement dust cover, the 3.25 inch circular silvered Roman numeral dial with subsidiary seconds beneath power reserve dial, and inscribed H. Frodsham, LIVERPOOL 1956 to centre, with blued steel moon hands, set in a lacquered brass bowl with screw-down bezel mounted within pivoted gimbals with locking screw, now in a later mahogany two-tier case with glazed top and brass carrying handles to sides.The box 15cm (6ins) high, 15.5cm (6.125ins) square. Provenance:The personal collection of the former owners of Marine Instruments Limited, Falmouth, Cornwall. Henry Frodsham is recorded in Mercer, Tony Chronometer makers of the World as working from 17 South Castle Street, Liverpool 1856-78 then 9 St. George's Crescent 1878-93 and 31 South Castle Street 1894-1935. The firm became part of W.F. Stanley in around 1934. Other sources also record Henry Frodsham as initially working from 40 Castle Street Liverpool 1839-44; he was the older brother of Charles Frodsham who was succeeded in the business by his widow, Frances Louisa, in 1858. The movement of the current lot can be closely compared to that of the following lot - a marine chronometer by Henry's younger brother, Charles Frodsham of 7 Pavement, Finsbury Square, London (number 1800). Condition Report: Movement is in working order with no visible evidence of alteration or noticeable replacements. The dial has some slight patchy oxidation/mellowing to the silvering otherwise is in good original condition. The bowl and gimbals are in good original albeit tarnished/discoloured condition with evidence of old re-lacquering. As catalogued the box is a later replacement but is in good clean condition.Chronometer has a non-original winding key. Condition Report Disclaimer

A MAHOGANY CASED TWO-DAY MARINE CHRONOMETER THOMAS MERCER, ST. ALBANS, CIRCA 1960The circular four pillar single chain fusee movement with Harrison's maintaining power, jewelled pivots for the escape and seconds wheels, Earnshaw type spring detent escapement regulated by split bimetallic balance with cylindrical compensating weights, helical palladium balance spring and jewelled endstone, the spotted backplate with spring set-up ratchet and blued-steel pillar and backcock securing screws, the inside of the backplate and reverse of the dial mounting plate both stamped 23678, the 4 inch circular silvered Roman numeral dial with subsidiary seconds dial engraved 23678 at six o'clock, below signature Thomas Mercer across the centre and DOWN/UP, 0-56 power reserve dial beneath twelve o'clock, the lower margin of the chapter ring further inscribed THOMAS MERCER LTD., St. ALBANS ENG., secured by a screw-down bezel into a lacquered brass bowl with shuttered winding hole to rear mounted via gimbals into a mahogany two tier box with typsy winding key beneath glazed lid applied with brass plate inscribed MURAKI WATCH Co. LTD, NIHONBASHI, TOKYO, JAPAN, No. 23678 to front and a paper repairer's able dated 1968 to interior; with original padded baize-lined wooden guard box.The chronometer box 17cm (6.25ins) high, 19cm (7.5ins) square; the guard box 21.5cm (8.5ins) high, 29cm (11.5ins) wide, 24.5cm (10.25ins) deep. Provenance:The personal collection of the former owners of Marine Instruments Limited, Falmouth, Cornwall. The chronometer making firm Thomas Mercer of St. Albans was established by Thomas Mercer (1822-60) at North Road, London in 1858 before moving to 45 Spencer Street, Clerkenwell in 1860. Mercer became an active member of the British Horological Institute (established in 1858) where he lectured on the need to modernise the industry and served as honorary treasurer from 1875-95. After occupying several addresses in Clerkenwell Mercer relocated the core of the business to St. Albans in 1874 setting up a factory behind his house at 14-15 Prospect Road. Although the bulk of the businesses work was undertaken in St. Albans Mercer personally made weekly trips to Clerkenwell to deliver/collect parts finished by specialist outworkers as well as visit the Horological Institute. In order to maintain a presence in London Thomas Mercer opened an outlet 18 Westmoreland Road, City Road in 1890. Succuss at the Greenwich trials was also always considered important to Mercer who entered instruments every year; he was placed second in 1881 and his son, Frank, came first in 1911. In 1900 Thomas Mercer accepted an invitation to judge at the Universal Exhibition in Paris but unfortunately caught a cold on the ferry crossing and died soon after his return. The business was subsequently continued by his successors becoming of the most prolific suppliers of chronometers and other timepiece for industrial, maritime and domestic purposes and continued trading in St Albans until 1984.  Condition Report: Timepiece is in good original working condition with no visible evidence of alteration or noticeable replacements. The movement retains its original finish albeit with noticeable patchy discolouration/oxidation in areas. The dial has some patchy oxidation/wear otherwise is in good original condition. The bowl and gimbals are in good original condition retaining old albeit showing degradation/wear mostly to the bowl. The box is in good original relatively clean condition with faults limited to relatively minor surface scratches, wear and a few light bumps and scuffs. The lining to the guard box is in good condition, the exterior has a few light surface scratches and is lacking its leather strap handle.Instrument is complete with its typsy winding key. Condition Report Disclaimer

A FINE WILLIAM IV MAHOGANY SMALL TWO-DAY MARINE CHRONOMETER WITH ARNOLD'S 'U + I' SHAPED BALANCEARNOLD AND DENT, LONDON, CIRCA 1835The circular four pillar single chain fusee movement with five-spoke wheel crossings, Harrison's maintaining power, jewelled pivots for the escape wheel and Earnshaw type spring detent escapement regulated by helical-sprung Arnold 'U + I' shaped balance incorporating tapered weights with opposing timing screws and perpendicular poising bar, the backplate with tall balance cock centred with a ruby cabochon endstone, applied separate plate for the mainspring pivot fitted with a set-up ratchet, and blued steel movement pillar and backcock securing screws, the 3.325 inch circular silvered Roman numeral dial with subsidiary seconds dial beneath signature ARNOD & DENT, 84. Strand, London, N: 820 across the centre and WIND/UP, 0-48 power reserve dial at twelve o'clock, with blued steel spade hands and secured by a convex-glazed screw-down bezel into a lacquered brass bowl with pivoted dust-cap covered winding hole to underside, mounted via gimbals into a mahogany three tier box with typsy winding key, the middle tier applied with ivory roundel inscribed 820 to the front over lock with brass rectangular escutcheon plate and the sides with hinged with carrying handles.15cm (6ins) high, 14.5cm (5.75ins) wide, 14.5cm (5.75ins) deep.  Edward John Dent was a talented horologist who at the age of 17 transferred his apprenticeship from the trade of tallow chandler to watchmaking under the charge of Edward Gaudin in 1807. By 1817 he had become well known as a watch and clockmaker receiving commissions from the Admiralty for a 'Standard Astronomical Clock' and pocket chronometers for the Colonial Office Africa Expedition. In 1830 Dent went into partnership with John Roger Arnold which continued until 1840 when he left and set up business alone as E.J. Dent at 82 Strand, London, primarily making marine chronometers, watches and precision clocks.John Roger Arnold was born in 1769, the son of the famous watch and chronometer maker John Arnold. He initially trained under his father and then Abraham Louis Breguet before, in 1787, going into partnership with his father. The firm of Arnold and Son subsequently became principal suppliers of early marine chronometers to the Royal Navy and lasted until the death of John Arnold senior in 1799. John Roger Arnold continued the business, in 1817 he was appointed Master of the Clockmakers' Company and in 1821 he was credited with the invention of the 'U' shaped compensated chronometer balance. In 1830 Arnold took Edward John Dent into partnership (after the unfortunate demise of his adopted son and likely successor); the partnership lasted ten years before being dissolved leaving Arnold to work alone until his death in 1843. The design of the balance used in the present chronometer conforms to the 'third type' of Arnold's 'U' design (designated 'U + I') as described in Mercer, Vaudrey JOHN ARNOLD & SON on page 156 (with an example illustrated plate 175). Condition Report: Movement is in relatively clean working condition with no visible evidence of alteration or noticeable replacements. The dial is in fine condition with good even silvering and strong bluing to the hands. The bowl and gimbals show light wear, oxidation and discolouration to the finish otherwise are in vry good original condition. The top tier of the case may well be a very well-made replacement and has some scratching to the top surface, otherwise case is in very good relatively clean condition. Chronometer is complete with typsy winder and a case key.IVORY LICENCE - U876WTGUCondition Report Disclaimer

Ɵ&nbspHOROLOGICAL REFERENCE BOOKS RELATING TO WATCHESFIFTEEN VOLUMES:Daniels, George The Art of Breguet Sotheby Parke Bernet, London and New York 1974, dj; Clutton, Cecil and Daniels, George WATCHES B.T, Batsford Limited, London 1965, dj; Clutton, Cecil and Daniels, George WATCHES enlarged edition Sotheby Parke Bernet, London and New York 1975, dj; Camerer Cuss, Terence THE ENGLISH WATCH 1585-1970 Antique Collectors' Club, Woodbridge 2009, dj; Camerer Cuss, T.P. The Camerer Cuss Book of ANTIQUE WATCHES Antique Collectors' Club, Woodbridge 1976, dj; Daniels, George WATCHMAKING Sotheby Publications London 1981, dj; Kemp, Robert The Englishman's Watch John Sherratt and Son Limited, London 1979, dj; Thompson, David Watches The British Museum Press, London 2008, dj; Clutton, Cecil Collector's Collection The Antiquarian Horological Society, London 1974, dj; Daniels, George English & American Watches Abelard-Schuman, London, New York and Toronto 1967, dj; Camerer Cuss, T.P. The Country Life Book of WATCHES Country Life Limited, London 1967, dj; Cutmore, M. The Watch Collector's Handbook David and Charles, Newton Abbot 1976, dj; Ullyett, Kenneth Watch Collecting Frederick Muller, London 1970, dj; Hayward, J.F. VICTORIA AND ALBERT MUSEUM, ENGLISH WATCHES Her Majesty's Stationery Office, London 1969, softbound; Anon SMITH & SONS LTD. Guide to The Purchase of a WATCH, With Illustrations facsimile reprint of the circa 1892 trade catalogue, Malcolm Gardner, Sevenoaks 1969, gilt titled blue cloth; together with copies of Gould, Rupert T. THE MARINE CHRONOMETER, IT'S HISTORY AND DEVELOPMENT Antique Collectors' Club, Woodbridge 1989, dj; Britten, F.J. The Antique Collectors' Club edition of OLD CLOCKS AND WATCHES AND THEIR MAKERS Antique Collectors' Club, Woodbridge 1977, dj, and two related sundry publications, (19). Provenance:The Leonard Fuller Collection.

A VERY FINE GEORGE I GOLD REPOUSSE PAIR-CASED POCKET WATCH WITH CYLINDER ESCAPEMENTGEORGE GRAHAM, LONDON, NUMBER 5438, 1732The gilt full plate single fusee movement with four Egyptian pillars pinned through the backplate, scroll-pierced stop-iron block and cylinder escapement regulated by sprung three-arm steel balance with Tompion type regulation, the backplate with fine symmetric foliate scroll pierced and engraved balance cock with faceted diamond endstone, herringbone bordered canted rim and with wedge-shaped scroll engraved foot flanked by silvered regulation disc set within adjacent applied scroll engraved panel infill opposing signature Geo: Graham, London and numbered 5438, with gilt brass dust cover similarly signed Geo. Graham, London, the slightly convex white enamel Roman numeral dial with Arabic five minutes to outer track and finely worked beetle and poker hands, the inner case with shuttered winding hole to rear cover and suspension post with bow at twelve o'clock, the outer case repousse decorated in the manner of George Moser with Diana the huntress seated within a woodland landscape with a hound within repeating S-scroll surround adorned with scallop shells at the quadrants within further scroll-bordered reserves alternating with floral panels, the bezel with circumference engraved with further scrolls into a matted ground and with moulded collar to outer edge, the inner case with marks for London 1732 maker IW for John Ward and stamped with repeat serial number 5438.The pillar plate 3.5cm (1.375ins) diameter, the outer case 5cm (2ins) diameter. Provenance:The Leonard Fuller Collection. Purchased from Malcolm Gardner, Sevenoaks, 29th August 1967 for £265. George Graham was born in around 1673 in Kirklinton, Cumberland, but by 1688 he had moved to London and entered into an apprenticeship with Henry Aske. Graham gained his freedom of the Clockmakers' Company in 1695 and went to work for Thomas Tompion, whose niece, Elizabeth, he married at St. Mary le Bow in September 1704. After the Tompion's failed partnership with Edard Banger Graham was trusted to become his successor with the two makers entering into a formal a partnership in 1711. On Tompion's death in 1713 George Graham inherited the business 'on the corner of Water Lane in Fleet Street' and continued there until 1720 when he relocated to 'the Dial and One Crown' further up Fleet Street, nearer Fleet Bridge.George Graham maintained the same exacting standards as his former master and also continued the serial numbering system established in around 1680/81. In 1722 he served as Master of the Clockmakers' Company and went on to establish himself as one of the most important clockmakers of his generation. Amongst his achievements was the further development of the deadbeat escapement, invention of the mercury compensated pendulum and the cylinder watch escapement. As well as clocks and watches George Graham was also a highly accomplished maker of scientific instruments with perhaps his most famous creation being the planetarium made for Charles Boyle, Earl of Orrery. He also produced the great mural quadrant for Edmund Halley at Greenwich observatory, also a fine transit instrument and the zenith sector used by James Bradley in his discoveries. Through his observations in testing his very highly regarded compasses Graham also discovered the diurnal variation in the terrestrial magnetic field in 1722/23.George Graham also became an ardent supporter of John Harrison in the development of his marine chronometers to the extent that he forwarded an interest free private loan of £200 to Harrison to facilitate the building of H1. George Graham died in 1751 and was buried next to his former master in Westminster Abbey, leaving the business in the hands of a former apprentices, Samuel Barclay and Thomas Colley. George Graham's legacy is perhaps best reflected by the subsequent work of another former apprentice, Thomas Mudge, who went on to continue in the development of the marine chronometer after Harrison, and to invent the lever watch escapement. The cylinder escapement was developed in around 1695 by Thomas Tompion and further refined by George Graham in 1726. This new escapement was perhaps the first developed exclusively for watch work and, as well as being a better rate keeper, the cylinder escapement also allowed movements to be made more compact (due to the escapement operating in one plane only). However, being a form of frictional rest escapement, the cylinder escapement was prone to relatively heavy rates of wear hence was less reliable than the verge (until hardened steel escape wheels and ruby cylinders were developed later in the 18th century). George Graham's faith in this new design of escapement was such that he incorporated it into all of his watches from around 1725/6 (between serial numbers 5175 and 5182). The present lot is a fine relatively early example of a Graham cylinder watch in fine condition complete with finely worked heavy outer repousse case. Condition Report: The watch is in fine clean working condition with no visible evidence of alteration or noticeable replacements however it is possible that the escapewheel and cylinder may be 'service' replacements. The mechanism retains its gilt finish with minimal wear and with other faults limited to a couple of small scratches to the backplate. The dust cover is in fine condition. The dial appears to be in perfect condition including the hands which are vey finely made. The inner case is in fine original condition with minimal wear and no discernible denting. The outer case has some slight wear to the high spots to the rear cover otherwise in in fine original condition.Gross weight 133g. Watch has a winding key. Condition Report Disclaimer

A RARE TWO-DAY ORDINANCE SURVEY CHRONOMETERTHOMAS MERCER, ST. ALBANS, MODEL S. C. 2, CIRCA 1949The circular four pillar single chain fusee movement with Harrison's maintaining power, jewelled pivots for the escape and seconds wheels, Earnshaw type spring detent escapement regulated by split bimetallic balance with cylindrical compensating weights, helical palladium balance spring and jewelled endstone, the spotted backplate with spring set-up ratchet and blued-steel pillar and backcock securing screws, the 4 inch circular silvered Arabic numeral twenty-four hour 'sidereal' dial with subsidiary seconds dial incorporating open centre revealing ratchet-tooth wheel for opening and closing electrical contacts with the beat of the escapement at six o'clock, within annotation in red CAUTION: HANDS, FORWARD ONLY below signature THOMAS MERCER LTD, ST. ALBANS, ENGLAND across the centre and DOWN/UP, 0-56 power reserve dial numbered 18384 beneath twelve o'clock, with blued steel spade hands and red Arabic five minutes beyond the outer minute track, set beneath a screw-down chrome-plated bevel-glazed bezel incorporating dust-cap sealed winding square aperture to glass, mounted onto a disc collar stamped 18384 to underside incorporating START/STOP lever and insulated electrical contact screws engaging with sprung contact posts fitted to the exterior of the grey-speckle japanned cylindrical aluminium case, complete with typsy winding and hand setting keys, rating certificate dated 22nd March, 1949 and Mercer information sheet C 6/61, set in a metal angle reinforced baize-lined canvas covered field case hand-inscribed O.S. 821 A over M.O.D. arrow device to the lid and fitted with leather carry strap; with a ticker-tape recording chronograph, Thomas Mercer, model T. P. A., mid 20th century, the rectangular thick-gauge brushed aluminium box-type frame incorporating brass bushed pivots for the single going barrel movement regulated by an adjustable centrifugal governor, driving a milled aluminium wheel positioned beneath a tensioned jockey wheel to pull through ticker tape fed via a large spool across the top plate, past a pair of solenoids each independently operating a pivoted armature fitted with sharp 'pricker' to mark the ticker tape as it passes beneath, the front with WIND square, 2 SPEEDS, IN FAST and OUT SLOW selection plunger, ON/OFF lever and inscribed MERCER, ST. ALBANS. ENGLAND to centre over number 185 to lower right-hand corner, secured in its original mahogany-framed drop-front box with electrical feeds from paired external contact plugs labelled BATTERY, KEY and CHRONOMETER positioned on the right-hand end, the exterior lined in green painted canvas and with metal reinforced angles, the top indistinctly hand-inscribed W10/W 0002 over M.O.D. arrow device, the front with printed metal plate MERCER, MODEL T. P. A. / 2, MADE BY THOMAS MERCER LTD. ST. ALBANS. ENGLAND, with chrome winding key, contact feed cables, and Mercer information sheet C 7/61, (2).The chronometer case 17cm (6.75ins) high, 28cm (11ins) wide, 21cm (8.25ins) deep; the ticker-tape chronograph case 19.5cm (7.75ins) high, 49cm (19.25ins) wide, 17.5cm (7ins) deep. The chronometer making firm Thomas Mercer of St. Albans was established by Thomas Mercer (1822-60) at North Road, London in 1858 before moving to 45 Spencer Street, Clerkenwell in 1860. Mercer became an active member of the British Horological Institute (established in 1858) where he lectured on the need to modernise the industry and served as honorary treasurer from 1875-95. After occupying several addresses in Clerkenwell Mercer relocated the core of the business to St. Albans in 1874 setting up a factory behind his house at 14-15 Prospect Road. Although the bulk of the businesses work was undertaken in St. Albans Mercer personally made weekly trips to Clerkenwell to deliver/collect parts finished by specialist outworkers as well as visit the Horological Institute. In order to maintain a presence in London Thomas Mercer opened an outlet 18 Westmoreland Road, City Road in 1890. Succuss at the Greenwich trials was also always considered important to Mercer who entered instruments every year; he was placed second in 1881 and his son, Frank, came first in 1911. In 1900 Thomas Mercer accepted an invitation to judge at the Universal Exhibition in Paris but unfortunately caught a cold on the ferry crossing and died soon after his return. The business was subsequently continued by his successors becoming of the most prolific suppliers of chronometers and other timepiece for industrial, maritime and domestic purposes and continued trading in St Albans until 1984. The current chronometer was developed by Mercer for surveying purposes. Fitted with electrical contacts and rated to sidereal time the timepiece is designed to be used in conjunction with the ticker-tape chronograph and an Admiralty pattern 45 degree prismatic Astrolabe or theodolite (to allow accurate measurement of angular distance, or 'zenith distance' between a given star and the zenith). The very accurate timing of the zenith distance of a given star can provide precise 'local time', and, through comparison with Greenwich meantime, allow accurate longitude and latitude of the observer to be established.In practice, once the apparatus has been set-up, the seconds beats of the marine chronometer (synchronised with Greenwich meantime) will be recorded on the ticker tape at up to 1 inch intervals (depending-on the speed setting of the paper feed) through electrical connection to one of the solenoid-operated prickers. The second pricker is connected to a hand-switch (or key) operated by the surveyor observing the star through a theodolite (or prismatic Astrolabe). At the moment the given star reaches its maximum (or chosen) zenith angle the surveyor presses the switch which records this moment, alongside the regular marks of the chronometer, on the ticker tape. By knowing the time at which the chronometer feed was activated the respective time of the star reaching its zenith can be established by simply counting the pricks (for each second) up to the point of the mark created by the observation. Indeed, by taking a ruler and measuring the distance the observed mark occurs between two marks created by the chronometer feed, the time of the mark (in relation to Greenwich meantime) can be ascertained up to an accuracy of around one twentieth of a second.In order to create accurate maps, a location within 50 feet would need to be obtained; this corresponds to a timed observation within 0.03 of a second. With this in mind several observations would need to be taken and any errors in the rate of the chronometer ascertained and corrections factored-in before suitably accurate readings for location can be established. In practice the rate chronometer was often independently checked in the field (both before and after the observations) through comparison with against radio Time Signals transmitted from Greenwich. Markings to the lid of the chronometer box indicates that it was owned by the Ordinance Survey. As such it was likely to have been used alongside aerial photography for small scale maps, particularly in undeveloped or difficult locations, where the location data is governed by a series of points whose positions are fixed by radio Astro Observations.  

A FINE WILLIAM IV 18CT GOLD QUARTER-REPEATING POCKET WATCH WITH CYLINDER ESCAPEMENTARNOLD AND DENT, LONDON, 1832The gilt single fusee movement with four columnar pillars pinned through the backplate and cylinder escapement regulated by sprung three-arm flat-rim steel balance, the quarter repeat-work operated via plunger to the suspension post sounding the hours on a gong followed by ting-tang quarters on the same and a second smaller gong set within the circumference of the case, the backplate with plain balance cock incorporating faceted ruby endstone and with wedge-shaped foot, set beside raised plate for the mainspring barrel applied with spring set-up ratchet opposing Slow/Fast regulation lever and engraved signature Jn'o. R. Arnold, London with serial number 3882 and further text & Dent to the spring barrel pivot plate, the circular white enamel Roman numeral dial signed ARNOLD & DENT, LONDON, 3882 and with gold/gilt moon hands, the engine-turned silvered case with suspension post and loop at twelve o'clock, crest engraved as stag to the centre of the rear cover and inscribed Guy Lenox Prendergast to the inner cover, marks for London 1832 maker HH.The pillar plate 3.5cm (1.375ins) diameter, the case 4.8cm (1.875ins) diameter. Provenance:The Leonard Fuller Collection. Purchased from Aubrey Brocklehurst, London, 29th August 1967 for £95. The inscription to the inside cover indicates that the present watch was formerly the property of Guy Lenox Prendergast (1773-1845). Prendergast was of Irish descent and held many positions in the East India Company, mostly in Madras and Bombay, from 1793 (including chief Judge, Bombay 1816) until 1826. He was then elected as M.P. for Lymington 1827. Edward John Dent was a talented horologist who at the age of 17 transferred his apprenticeship from the trade of tallow chandler to watchmaking under the charge of Edward Gaudin in 1807. By 1817 he had become well known as a watch and clockmaker receiving commissions from the Admiralty for a 'Standard Astronomical Clock' and pocket chronometers for the Colonial Office Africa Expedition. In 1830 Dent went into partnership with John Roger Arnold which continued until 1840 when he left and set up business alone as E.J. Dent at 82 Strand, London, primarily making marine chronometers, watches and precision clocks.John Roger Arnold was born in 1769, the son of the famous watch and chronometer maker John Arnold. He initially trained under his father and then Abraham Louis Breguet before, in 1787, going into partnership with his father. The firm of Arnold and Son subsequently became principal suppliers of early marine chronometers to the Royal Navy and lasted until the death of John Arnold senior in 1799. John Roger Arnold continued the business, in 1817 he was appointed Master of the Clockmakers' Company and in 1821 he was credited with the invention of the 'U' shaped compensated chronometer balance. In 1830 Arnold took Edward John Dent into partnership (after the unfortunate demise of his adopted son and likely successor); the partnership lasted ten years before being dissolved leaving Arnold to work alone until his death in 1843. The present lot would appear to be a particularly early product of the Arnold and Dent partnership as the '& Dent' text engraved to the mainspring pivot plate would appear to be an addition executed after John Roger Arnold's signature. This would suggest that the movement had already been finished by Arnold and was awaiting dialling/casing before the creation of the partnership in 1831. Condition Report: Watch is in fine, clean fully working condition. The backplate retains original gilt finish with minimal wear/scratching. The dial has two very slight hairline cracks at nine o'clock as well as a tiny edge chip (all only visible on very close examination). The case has overall light to moderate wear to exterior and the marks are a little rubbed otherwise case is in very good original condition with bezel and rear closing tightly.Gross weight 113g, watch has a winding key. Condition Report Disclaimer

A FINE REGENCY MINIATURE BRASS MOUNTED EBONISED TABLE/BRACKET CLOCK WITH TRIP-HOUR REPEATBARWISE, LONDON, CIRCA 1820The five columnar pillar twin chain fusee bell striking movement with anchor escapement regulated by disc-bob pendulum incorporating transverse pivoted beam rise/fall regulation to suspension and holdfast to the shouldered backplate, engraved Barwise, LONDON to centre, the 4 inch single sheet silvered brass Roman numeral break-arch dial also signed Barwise, LONDON to the centre, with blued steel spade hands beneath arch incorporating twin subsidiary STRIKE/SILENT and regulation dials, the case with hinged sculpted brass handle and rectangular plate capping the ogee shaped caddy superstructure over moulded brass collar and further outswept concave section merging with the break-arch profile top applied with the complex cornice mouldings, the opening front with brass fillet mouldings bordering the glazed dial aperture, the sides with conforming brass-edged arched windows and the rear matching the front, on cushion moulded skirt base and turned brass acorn-shaped feet.27.5cm (10.75ins) high with handle down, 15cm (6ins) wide, 11cm (4.25ins) deep. The life of John Barwise and his family are outlined by A.D. Stewart in his article Barwise & Sons: Watchmakers to the King, A brief history of family and firm published in the March 2014 issue of 'ANTIQUARIAN HOROLOGY' (Vol IIIV No. 1 pages 621-34). Stewart notes that John Barwise was born into a clockmaking family in Cockermouth, Cumberland in around 1756. By 1780 he had moved to London where he opened a watch retailing business. Ten years later he married Elizabeth Weston with his address being recorded as 29 St. Martin's Lane where he remained until his death in 1820. Of their eleven children two (possibly three) died in infancy and two, John II (born 1795) and Weston (born 1793), subsequently joined their father in the family business. In 1800, such was his success, John Barwise I purchased a second house in Dulwich.In 1805 John Barwise I was one of the fifteen watchmakers appointed by The Board of Longitude to adjudicate in the dispute between John Arnold and Thomas Earnshaw regarding 'the respective merits of their chronometers'. On the 14th February 1811 Barwise was the victim of five highwayman who relieved him of a 'gold watch, greatcoat, and a guinea-and-a-half in cash' whilst en-route from Camberwell to Dulwich. This unfortunate occurrence may well have tempered Barwise's enthusiasm for his house in Dulwich as records indicate it was rented out to tenants by 1813. In around 1816 his sons, John II (who had just turned 21) and Weston, joined him in partnership with the business then becoming 'Barwise & Sons'. Shortly afterwards (probably in 1820) the firm obtained the Royal Warrant as watchmakers to King George IV.John Barwise senior died in 1820; by this time he was a wealthy man leaving two properties and substantial investments to his widow and children. The business was continued by Weston and John II in partnership, however this only lasted six years as Weston died in 1826 leaving the business in the hands of John II alone. It was at this time that John II married and moved from the family home at St. Martin's Lane to nearby 42 Craven Street; and then in 1840 to a spacious residence called East Lodge, near Acton which at that time was in open countryside. At around the same time John Barwise II entered into an alliance with the highly inventive Scottish Clockmaker Alexander Bain who was in the process of developing the first electric timepiece. Barwise and Bain subsequently filed a patent (No. 8743) for an 'Electro-Magnetic Clock' which was granted in January 1841; an example of which was then subsequently exhibited at the Royal Polytechnic Institution shortly afterwards.In 1842 John Barwise II was approached by Pierre Frederic Ingold (1787-1878) to assist in the creation of a watch factory which, by employing newly invented machinery, would be able to mass produce high quality watches at a much smaller cost than the prevalent hand-built movements available at the time. Barwise, along with Thomas Earnshaw junior, subsequently became managing directors of the newly established 'British Watch and Clockmaking Company'. Unfortunately the venture failed, and Barwise was declared bankrupt in 1846. With this he lost his house, East Lodge near Acton, but still managed to keep the business afloat. After a few more years of struggling in the business John Barwise II retired leaving it in the hands of the Swiss watchmaker, Jules Rochat, who joined the firm in 1847. John Barwise II was recorded in the 1861 census as being a 'chronometer maker out of business' and presumably still resided at 7 Queen's Row, Camberwell until his death in 1869. The present timepiece is finely made and finished and of very pleasing small proportions with the design of the case following that of a series of miniature timepieces produced by Grimalde and Johnson, London. The movement of the current clock, however, is of much higher specification than those mostly seen by Grimalde and Johnson, which are generally only single fusee timepieces. Condition Report: Movement is in fine relatively clean working condition and appears very original with no visible evidence of alteration or notable replacements. If intending to put into long-term service however a precautionary gentle clean/lubrication is advised. The dial is in sound original condition, it is presentable with nice overall slightly mellow colouring but has some spots of oxidation and slight rubbing around the winding holes so may benefit from being re-silvered (depending on personal preference). The case is also in fine original condition with the only notable faults being that the putty holding in the front door glass is starting to come loose and drop out. The baseboard of the case is cut with a slot to allow for the pendulum swing - this is an original feature. Faults to the case are otherwise very much limited to very minor bumps, scuffs, shrinkage and edge wear commensurate with age and use.Clock is complete with pendulum, winder and a case key. Condition Report Disclaimer

AN ELIZABETH II SILVER CASED MINIATURE CARRIAGE TIMEPIECECHARLES FRODSHAM, LONDON 1978The eight-day four pillar going barrel movement with Swiss gilt platform lever escapement regulated by spring monometallic balance, the rectangular white enamel Roman numeral dial with diamond lozenge pierced blued steel hands over signature Chas. Frodsham, London to lower margin, the heavy cast silver caryatides variant bevel-glazed case with crown-centred hinged scroll handle over acanthus cast surround to the rectangular top glass over lappet leaf cast cornice and angled female term supports to angles, the rear with pin-hinged door and on conforming leaf cast canted base with shallow squab feet, the rear lower rail of the case with marks for London 1978 maker TC.8.5cm (3.675ins) high with handle down, 6cm (2.375ins) wide, 5cm (2ins) deep. Charles Frodsham was born in 1810 into a family of clockmakers with his grandfather, William originating from Cheshire before moving to London prior to 1781 where he was admitted to the Clockmaker's Company. His son, William James, had six sons, four of whom joined the firm of Parkinson and Frodsham in London; whilst Charles, the third born son set-up on his own at Barnes Place, Islington in 1834. He moved to 12 Finsbury Pavement in 1836 then to number 7 in 1838. On the death of the renowned chronometer maker John Roger Arnold in 1843 Charles Frodsham acquired the business and began trading as 'Arnold, Charles Frodsham' from 84 Strand, London. Unusually Frodsham was not admitted to the Clockmaker's Company until 1845 but went on to serve as master twice in 1855 and 1862; he was also a founder member of the British horological Institute in 1858.Charles Frodsham became one of the most eminent chronometer makers of his generation who served as a juror in the 1852 International Exhibition held at South Kensington where he also showed a month duration marine chronometer with experimental 'Duo-in-uno' balance springs and three different forms of compound balance. In 1854 he purchased the 'goodwill' of the late Benjamin Lewis Vulliamy's business which led to his appointment as Superintendent and Keeper of Her Majesty's clocks at Buckingham Palace. Charles Frodsham died of liver disease in January 1871 and was succeeded by his son, Harrison Mill Frodsham. The business became Charles Frodsham and Company and in 1884 and then was incorporated as a limited Company in 1893 before relocating to 115 New Bond Street, London two years later where they remained well into the Twentieth Century. The firm is still trading today (from 32 Bury Street, London) as specialist in chronometer, watch and clock makers.  The present timepiece was produced as a part of a limited edition run of less than 1,000 examples to commemorate the Silver Jubilee of Queen Elizabeth II. The present example however is apparently unnumbered so may have been held in stock and retailed later. Condition Report: Movement is complete and in working condition however a gentle clean/service is advised. The dial has some slight rubbing to the signature otherwise appears undamaged. Case is in fine original condition with no visible damage to the glasses. There is no winding key present. Condition Report Disclaimer

Ɵ&nbspHOROLOGICAL REFERENCE BOOKS MONOGRAPHS ON NINETEENTH CENTURY CHRONOMETER MAKERSTHREE VOLUMES:Mercer, Vaudrey THE FRODSHAMS, THE STORY OF A FAMILY OF, Chronometer Makers The Antiquarian Horological Society, Ramsgate 1981, dj; Mercer, Vaudrey JOHN ARNOLD & SON, CHRONOMETER MAKERS, The Antiquarian Horological Society, Ramsgate 1972, dj, (plus supplement dated 1975); Mercer, Vaudrey THE LIFE AND LETTERS OF EDWARD JOHN DENT, Chronometer Maker, and some account of his SUCCESSORS, The Antiquarian Horological Society, Ramsgate 1977, dj, (3). Provenance:The Leonard Fuller Collection.

A GROUP OF FOUR MAHOGANY BOXES FOR EIGHT-DAY MARINE CHRONOMETERS TOGETHER WITH GUARD CASESEX THOMAS MERCER, ST. ALBANS, THIRD QUARTER OF THE 20th CENTURYEach two-part glazed-top mahogany box pre-drilled for gimbal fixings and with typsy winding key holder to interior, two of the guard boxes plywood with leather securing straps, the other two mahogany with drilled deck mounting flanges to sides at the base (all appear to be 'new old stock', one leather strap incomplete, another lacking).The chronometer boxes 8ins (20.5cm) high, 21cm (8.25ins) wide, 21.5cm (8.5ins) deep; the mahogany guard boxes 26.5cm (10.5ins) high, 35cm (13.75ins) wide at the base, 27cm (10.75ins) deep. 

Y&nbspAN EARLY VICTORIAN MAHOGANY CASED SMALL TWO-DAY MARINE CHRONOMETER CHARLES FRODSHAM, LONDON, CIRCA 1840 The circular four pillar single chain fusee movement with Harrison's maintaining power, Earnshaw type spring detent escapement, split bimetallic balance with keystone-shaped compensation weights, helical balance spring and faceted diamond endstone, set behind brass bayonet fitting movement dust cover, the 3.25 inch circular silvered Roman numeral dial with subsidiary seconds beneath power reserve dial, and inscribed CHARLES FRODSHAM, 7 Pavement, Finsbury Sq'e, London, No. 1800 to centre, with blued steel moon hands, set in a lacquered brass bowl with screw-down bezel mounted within pivoted gimbals with locking screw, the mahogany two-tier case with glazed top and vacant brass plate applied to the front of the upper tier over brass key escutcheon and ivory roundel to the lower tier, the sides with brass carrying handles, (balance staff and escape wheel pivots damaged, the case originally fitted with a third top tier).The box 15cm (6ins) high, 15.5cm (6.125ins) square. Charles Frodsham was born in 1810 into a family of clockmakers with his grandfather, William originating from Cheshire before moving to London prior to 1781 where he was admitted to the Clockmaker's Company. His son, William James, had six sons, four of whom joined the firm of Parkinson and Frodsham in London; whilst Charles, the third born son set-up on his own at Barnes Place, Islington in 1834. He moved to 12 Finsbury Pavement in 1836 then to number 7 in 1838. On the death of the renowned chronometer maker John Roger Arnold in 1843 Charles Frodsham acquired the business and began trading as 'Arnold, Charles Frodsham' from 84 Strand, London. Unusually Frodsham was not admitted to the Clockmaker's Company until 1845 but went on to serve as master twice in 1855 and 1862; he was also a founder member of the British horological Institute in 1858.Charles Frodsham became one of the most eminent chronometer makers of his generation who served as a juror in the 1852 International Exhibition held at South Kensington where he also showed a month duration marine chronometer with experimental 'Duo-in-uno' balance springs and three different forms of compound balance. In 1854 he purchased the 'goodwill' of the late Benjamin Lewis Vulliamy's business which led to his appointment as Superintendent and Keeper of Her Majesty's clocks at Buckingham Palace. Charles Frodsham died of liver disease in January 1871 and was succeeded by his son, Harrison Mill Frodsham. The business became Charles Frodsham and Company and in 1884 and then was incorporated as a limited Company in 1893 before relocating to 115 New Bond Street, London two years later where they remained well into the Twentieth Century. The firm is still trading today (from 32 Bury Street, London) as specialist in chronometer, watch and clock makers. A comparable chronometer (number 2012) was sold in these rooms 2nd October 2019 (lot 113) for £3,200 hammer. Condition Report: As mentioned in the catalogue description the balance and escapewheel arbors both have damaged pivots otherwise all components appear to be present with no other visible damage however as we are unable to test the operation of the movement we cannot verify that detent etc are serviceable. The fusee chain is also currently detached from the fusee cone hence we cannot vouch for the condition of the mainspring. Mechanism otherwise appears to be in original albeit somewhat neglected condition. The dial has rubbing and discolouration to the silvering however the definition of the engraving is good and the hands are undamaged. The bowl is in sound original condition but with overall oxidation to the surface and a few bumps and scuffs commensurate with age and use; the glass is presently loose within the bezel. The box is original and is generally in sound condition. The back of the upper tier has a glued horizontal break across the centre and the brass plate to the front is probably a replacement. The front has a couple of fairly deep scratches and there is another to the right-hand side; the base panel is also a little loose. Otherwise faults are limited to minor bumps, scuffs, shrinkage and wear commensurate with age, as catalogued there is no top tire present with the box.There is no winder of case key present.IVORY LICENSE - 4VNR92E6Condition Report Disclaimer

Ɵ&nbspHOROLOGICAL REFERENCE BOOKS MAINLY ON MARINE CHRONOMETERS AND LONGITUDETEN PUBLICATIONS:Mercer, Tony Mercer CHRONOMETERS first limited edition numbered 184 and signed by the author, Brant Wright Associates, Ashford 1978, dj; Gould, Rupert T. THE MARINE CHRONOMETER, IT'S HISTORY AND DEVELOPMENT Holland Press, London 1960, dj; Good, R., Amis P. and others PIONEERS OF PRECISION TIMEKEEPING The Antiquarian Horological Society, Ramsgate, undated but circa 1960; Jagger, Cedric PAUL PHILIP BARRAUD... 1750-1929 The Antiquarian Horological Society, London 1968, gilt tooled grey cloth, together with supplement, 1978, softbound; Laycock, William The Lost Science of John 'Longitude' Harrison first limited edition numbered 184 and signed by the author, Brant Wright Associates, Ashford 1976, dj; Howse, Derek GREENWICH OBSERVATORY, THE BUILDINGS AND INSTRUMENTS Taylor and Francis, London 1975, dj; Howse, Derek Francis Place AND THE EARLY HISTORY OF The Greenwich Observatory Science History Publications, New York 1975, dj; Ronan, Colin A. Greenwich Observatory, 300 years of astronomy Times Books Limited, London 1975, softbound; Gould, Rupert T. John Harrison and his Timekeepers National Maritime Museum, Greenwich 1958, softbound with stapled spine; Quill, Colonel H. JOHN HARRISON, COPLEY MEDALLIST and the £20,000 LONGITUDE PRIZE The Antiquarian Horological Society, Ticehurst 1976, softbound with stapled spine, together with four further related sundry publications (15). Provenance:The Leonard Fuller Collection.

AN UNUSUAL ITALIAN INTERVAL TIMER WITH CHRONOMETER-TYPE SPRING DETENT ESCAPEMENTOFFICIANA GALILEO, FLORENCE, CIRCA 1900The substantial rectangular four double-screwed square section pillar movement with plates measuring 5 by 4.5 inches, enclosing a large diameter going barrel fitted with stopwork to the rear of the greatwheel driving a three-wheel train pivoted between the plates, the third wheel rotating once a minute fitted with a pin-wheel with alternating lengths of pins set at five-second intervals, presumably to allow stop/release of the movement for either five or ten second increments as well as continuous running governed by a sprung pump detent operated via a shaped cam by a lever positioned to the right of the movement, the opposite end of the third wheel arbor fitted with a contrate wheel for the horizontal spring detent 'chronometer-type' escapement planted on top of the movement and regulated by a helical sprung three-arm brass balance, the backplate stamped with oval OFFICINA GALILEO, FIRENZE trademark over No. 202 towards the lower margin, the 3 inch circular slightly convex white enamel Roman numeral dial inscribed OFFICINA GALILEO, FIRENZE to centre and with subsidiary seconds interrupting the XII numeral, with blued moon hands within plain brass bezel incorporating winding square with direction of wind arrow to lower margin, the lower edge of the frontplate stamped 5008 and right hand side of the mechanism fitted with a small bell (purpose unknown), the movement set on a circular brass plate raised on four cylindrical supports over a conforming larger plate secured at the centre to allow rotation of the timepiece on a circular ebonised wood plinth, cut with a channel to take the glass dome towards the outer edge and with small bun feet to underside.The timepiece 23.5cm (9.25ins) high, 15cm (6ins) round at the base; the dome cover and stand 20cm (8ins) diameter, 34cm 13.5ins) high. Officina Galileo was established in 1863/4 by the astronomer Giovanni Battista Donati, the instrument maker Giuseppe Poggiali and the engineer/entrepreneur Angelo Vegni. The business was established to manufacture and supply optical and physics instruments. During the late 1860's the firm was based at the mechanical workshop of the Regio Istituto Tecnico, in Via San Gallo, Florence, before moving to the suburban quarter of the Cure in around 1870 coming under the management of Innocenzo Golarelli shorty after. During this time the business branched into telegraphic apparatus and electrical horology with the items stamped 'Officina Gallileo'. Although recognition for the quality of their products was forthcoming the business struggled commercially, requiring repeated subsidies from the Instituto Agrario Vegni who eventually acquired the firm in 1883. At the end of the 19th century expansion and modernisation of the factory took place under the direction of Giulio Martinez, but due to technical and financial difficulties the business was liquidated in 1906 - only to be reborn as with new owners and strong financial backers as 'Officine Gallileo' later the following year. The business continued under this new guise but through successive owners well into the 20th century, before becoming part of the Finmeccanica Group by the 1980's. Condition Report: Movement appears complete and all-original and is in relatively clean (albeit the brass slightly oxidised) condition. The train is providing motive power to the escapement but it will not currently beat as it should - there is no visible evidence of damage or loss hence it is most likely that adjustment is required. The stop/start lever system is intact and operational. The bell appears to be an addition and apparently serves no purpose - the bell stand is currently broken at the point the bell, is attached (failed historic solder repair). The timepiece can either operate as some form of interval timer (see description) or to tell the time. The duration has not been tested but the train would suggest that it is fairly short - probably 1 to 2 days. The dial has a very light short hairline crack to the centre otherwise is in fine condition. The wooden base has wear/rubbing to the finish otherwise is in good original condition. The glass dome has a section approx. 3cm high by 2cm wide chipped out of the lower edge otherwise is in good condition.Timepiece has a winding key. Condition Report Disclaimer

A GROUP OF FIVE MAHOGANY BOXES FOR TWO-DAY MARINE CHRONOMETERS TOGETHER WITH GUARD CASESEX THOMAS MERCER, ST. ALBANS, THIRD QUARTER OF THE 20th CENTURYEach two-part glazed-top mahogany box pre-drilled for gimbal fixings and with typsy winding key holder to interior, the plywood guard boxes with leather securing straps (all except one guard box appear to be 'new old stock').The chronometer boxes 7ins (18cm) high, 18.5cm (7.25ins) wide, 19cm (7.5ins) deep; the guard boxes 21cm (8.25ins) high, 22cm (8.75ins) wide, 23cm (9ins) deep. 

A RARE SWEDISH MAHOGANY CASED TWO-DAY MARINE CHRONOMETERVICTOR SODERBERG, STOCKHOLM, CIRCA 1840-50The circular eight-day single chain fusee movement with four substantial turned tapered pillars, Harrison's maintaining power, five-spoke wheel crossings and Earnshaw type spring detent escapement mounted on the backplate regulated by split bimetallic balance with six circular weights, helical balance spring and cabochon endstone, the spotted backplate with brass pillar screws and decorative shaped shoulder to the balance cock, the 4 inch circular silvered Roman numeral dial with subsidiary seconds dial inscribed PATENT, beneath signature Victor Soderberg, Stockholm., No. 407. to the centre and NED/UPP, 0-56 state of wind dial at twelve o'clock, with gilt spade hands, secured by a screw-down bezel into a lacquered brass bowl and mounted via gimbals into a brass reinforced figured mahogany three tier box inset with shaped brass vacant nameplate and with rounded brass capped top corners to top, over conforming vacant bone plaque flanked by inset brass strap reinforced rounded edges to front and hinged carrying handles to sides.20cm (8ins) high, 18.5cm (7.25ins) wide, 19cm (7.5ins) deep. Victor Soderberg is recorded in Britten, F.J. Old Clocks and Watches and their Makers as working in Visby, Sweden circa 1825-40, after which he is believed to have relocated to Stockholm. Condition Report: Movement is in working condition and appears complete with no visible evidence of alteration or noticeable replacements. The mechanism is a little dull/discoloured hence a gentle clean/service is advised. The dial is in good condition with very light scratching to the surface only (visible on very close examination only). The bowl and gimbals have overall mellowing and minor wear/oxidation to the lacquered finishes but are otherwise in fine condition. The case is missing the glass panel to the top of the middle tier. The top has a shrinkage crack running side-to side towards the rear; the left-hand side has a similar crack just above the handle. The finish to the case is a little uneven due to attempts to polish the brass fittings at some point and has overall minor bumps, scuffs, scratches etc. commensurate with age and use.There is no winder or case key present with the chronometer. Condition Report Disclaimer

A MAHOGANY CASED TWO-DAY MARINE CHRONOMETER INSCRIBED FOR THE CORONATION OF QUEEN ELIZABETH IITHOMAS MERCER, ST. ALBANS, 1953The circular four pillar single chain fusee movement with Harrison's maintaining power, jewelled pivots for the escape and seconds wheels, Earnshaw type spring detent escapement regulated by split bimetallic balance with cylindrical compensating weights, helical palladium balance spring and jewelled endstone, the spotted backplate with spring set-up ratchet and blued-steel pillar and backcock securing screws, the inside of the backplate and reverse of the dial mounting plate both stamped 20358, the 4 inch circular silvered Roman numeral dial with subsidiary seconds dial engraved 20358 over monogram 19 ER 53 at six o'clock, below signature THOMAS MERCER LTD, ST. ALBANS, ENGLAND across the centre and DOWN/UP, 0-56 power reserve dial beneath twelve o'clock, the lower margin of the chapter ring further inscribed THOMAS MERCER LTD. St. ALBANS ENG., secured by a screw-down bezel into a lacquered brass bowl with shuttered winding hole to rear and stamped with matching serial number 20358 to interior, mounted via gimbals into a mahogany two tier box with typsy winding key beneath glazed lid; with original padded baize-lined wooden guard box.The chronometer box 17cm (6.25ins) high, 19cm (7.5ins) square; the guard box 21.5cm (8.5ins) high, 29cm (11.5ins) wide, 24.5cm (10.25ins) deep. Provenance:The personal collection of the former owners of Marine Instruments Limited, Falmouth, Cornwall. The chronometer making firm Thomas Mercer of St. Albans was established by Thomas Mercer (1822-60) at North Road, London in 1858 before moving to 45 Spencer Street, Clerkenwell in 1860. Mercer became an active member of the British Horological Institute (established in 1858) where he lectured on the need to modernise the industry and served as honorary treasurer from 1875-95. After occupying several addresses in Clerkenwell Mercer relocated the core of the business to St. Albans in 1874 setting up a factory behind his house at 14-15 Prospect Road. Although the bulk of the businesses work was undertaken in St. Albans Mercer personally made weekly trips to Clerkenwell to deliver/collect parts finished by specialist outworkers as well as visit the Horological Institute. In order to maintain a presence in London Thomas Mercer opened an outlet 18 Westmoreland Road, City Road in 1890. Succuss at the Greenwich trials was also always considered important to Mercer who entered instruments every year; he was placed second in 1881 and his son, Frank, came first in 1911. In 1900 Thomas Mercer accepted an invitation to judge at the Universal Exhibition in Paris but unfortunately caught a cold on the ferry crossing and died soon after his return. The business was subsequently continued by his successors becoming of the most prolific suppliers of chronometers and other timepiece for industrial, maritime and domestic purposes and continued trading in St Albans until 1984. Condition Report: Timepiece is in fine original working condition with no visible evidence of alteration or noticeable replacements. The movement retains its original finish albeit with light discolouration/oxidation in areas. The dial has some patchy oxidation/wear otherwise is in good original condition. The bowl and gimbals are in good original condition retaining old surface although the exterior may have been refinished/re-lacquered which is now showing degradation/wear mostly to the bowl. The gimbal lock lever is most likely a replacement and the tongue is tight engaging with the slot in the gimbal ring. The box has a small repair to the left-hand hinge and has been repolished hence is now in good clean condition. The lining to the guard box is in good condition, the exterior has a few light surface scratches and scuffs but retains its leather strap handle.Instrument is complete with its typsy winding key. Condition Report Disclaimer

Rolex - Gentleman's Yacht-Master stainless steel bracelet watch, ref. 16622, the platinum-coloured dial with luminous dot hour markers, date aperture at the third hour with cyclops, luminous filled Mercedes hands and red sweeping seconds, platinum bezel, signed push-down crown, screw-down case back numbered '2180', signed calibre 3135 thirty-one jewels superlative chronometer movement, serial number '3 0957***'41mm diameter (ex.crown), on a Rolex Oyster tapered bracelet with deployant clasp, with boxes and outer sleeve (no papers)

Rolex - Gentleman's Oyster Perpetual chronometer stainless steel bracelet watch, ref.6084, 1953, the black dial with gilt baton and quarter triangular hour markers, filled hour and minute hands and sweeping seconds, signed screw-down crown, screw-down case back, the inside signed with date reference '1.53', signed calibre 56315 automatic movement, 34mm diameter (ex.crown), on a 'Fixoflex' braceletRotor loose

Chopard - Gentleman's Classic Racing Superfast Chronometer, ref.8537, the silvered striped dial with luminous filled triangular hour markers and Arabic '12', date aperture at the third hour, power reserve and seconds subsidiaries, luminous filled hour and minute hands, outer Arabic track, signed push-down crown, screw-on exhibition case back, signed calibre 01.02M 36 jewels automatic movement, serial no.136***, 45mm diameter (ex.crown), on its original rubber strap with signed deployant clasp, with box and outer card box

Omega - Gentleman's limited edition James Bond Quantum of Solace Seamaster Professional Planet Ocean co-axal chronometer bracelet watch, 923/5007, ref. 22230462001001, the textured black dial with applied luminous filled baton hour markers surrounding silvered Arabic quarter hours, date aperture at the third hour and luminous filled hour and minute hands, textured black bezel, helium escape valve, signed screw-down crown case back with 007 emblem, signed calibre 2500 self-winding movement, 46mm diameter (ex.crown), on its original stainless steel tapered bracelet with deployant clasp, sold with certificate of authenticity, various cards, card holder, operating instructions, box with outer card box, spare links and tags Watch no. 81932***International Warranty card stamped by John Dyson Ltd. Jewellers, Leeds

Breitling. A stainless steel automatic calendar wristwatchModel: SuperOcean Heritage II B20Reference: AB2010161C1S1Date: Purchased 7th June 2020Movement: Jewelled automaticDial: Blue, applied polished baton hour markers, white outer minute divisions with luminous dot 5 minute markers, date aperture at 6, polished arrow hands with luminous inserts, centre secondsCase: Brushed and polished tonneau form, screw down back, uni-directional rotating bezel with blue calibrated insert, No.5021791Strap/Bracelet: Blue Breitling rubberBuckle/Clasp: Signed folding claspSigned: Case, dial & movementSize: 42mm Accompaniments: Breitling travel case, outer card, International Warranty, chronometer certificate, brochuresFor further information on this lot please visit Bonhams.com

Rolex. A lady's stainless steel and 18K white gold automatic diamond set calendar bracelet watch with mother of pearl dialModel: DatejustReference: 178274Date: Circa 2015Movement: 31-jewel Cal.2235 automatic, adjusted to 5 positions and temperature, No.7X9E0488Dial: Mother of pearl, applied diamond set hour markers, magnified date aperture at 3, polished baton hands, centre secondsCase: Brushed and polished tonneau form, screw down back, white gold fluted bezel, No.202T4054Strap/Bracelet: Brushed and polished 63160 Jubilee linkBuckle/Clasp: Signed concealed folding clasp, stamped 2TGSigned: Case, dial & movementSize: 31mmFootnotes:The Rolex Datejust was first released in 1945 to celebrate the brands 40th anniversary and has remained a part of the catalogue ever since. At the time, the model was the first automatic chronometer wristwatch to display the date in an aperture on the dial. Throughout the years the Datejust has been made available in many different sizes, metals and dial configurations. This particular model number was produced from 2008-2020 and was aimed at a smaller wrist size with its 31mm case.This lot is subject to the following lot symbols: RR This lot is subject to import restrictions when shipped to the United States.For further information on this lot please visit Bonhams.com

Chopard. A stainless steel automatic calendar wristwatchModel: Mille Miglia GT XLReference: 8997Date: Circa 2010Movement: 24-jewel automatic, No.66118Dial: Black, applied luminous dart hour markers, red outer minute divisions, raised white 1/5th second divisions with Arabic numeral 5 minute markers, magnified date aperture at 3, polished pointed baton hands with luminous inserts, centre secondsCase: Polished round, exhibition back secured by 8 screws, No.1329995Strap/Bracelet: Black Chopard rubberBuckle/Clasp: Signed double folding claspSigned: Case, dial & movementSize: 44mm Accompaniments: Chopard box, outer card, Instructions for use, blank chronometer certificate, 'The Spirit of a Legend' CDFor further information on this lot please visit Bonhams.com

TAG Heuer. An 18K gold automatic calendar wristwatchModel: 6000 GoldReference: WH514Date: Purchased 17th November 2000Movement: 21-jewel automatic, No.0926Dial: Silvered, applied luminous filled gilt dot hour markers, raised outer 1/2 second divisions, magnified date aperture at3, gilt Mercedes hands with luminous inserts, centre secondsCase: Brushed and polished tonneau form, screw down back, calibrated uni-directional rotating bezel, No.1756Strap/Bracelet: Associated blue leatherBuckle/Clasp: Associated gilt buckleSigned: Case, dial & movementSize: 39mm Accompaniments: TAG Heuer box, outer card, chronometer certificate, guarantee, instructions, spare TAG Heuer strap (AF) with 18K gold folding claspFor further information on this lot please visit Bonhams.com

Omega electronic chronometer F300 Hz gentleman's wristwatch ref. 198.031 with date aperture, luminous hands and baton hour markers, blue dial, stainless steel case and signed 12 jewel calibre 9162 movement, on stainless steel bracelet, case diameter 37mm. 

A Thomas Mercer marine chronometer, 56 hour No. 22959, silvered dial. Case diameter 12.5 cm, complete with case and gimbal (see illustration).

An Omega Electronic f360 Hz Genève Chronometer wristwatch. The Omega wristwatch having stick indices, triple hands and date function to stainless steel case. Dial signed Omega Electronic f360 Hz Genève Chronometer. The Omega watch having a mesh link bracelet strap, likely a replacement, signed ROM stainless steel. Measures 21cm. Dial measures 3.6cm x Weighs 90.7g. All weights, measurements and sizes are approximate. All watches are sold as untested, therefore without warranty. 

ARMBANDUHR 'OMEGA CONSTELLATION' Schweiz, 20. Jh. Stahl. vergoldet. Gehäuse D. 3,3 cm. Goldfarbenes Zifferblatt, bez. 'Omega Automatic Chronometer Officially Certified - Constellation - Swiss Made', Stunden-, Minuten- und Sekundenzeiger, Datum auf der '3', Krone mit Herstellersignet auf der '3', verso Sternwarte, Gliederband mit Faltschließe, Herstellersignet. Bei der Prüfung funktionstüchtig.