We found 11381 price guide item(s) matching your search

Asprey: A Stainless Steel Automatic Calendar Chronograph Wristwatch, signed Asprey, Certified Chronometer, model: No.8 Chronograph, ref: 01000-05-A, circa 2005, lever movement signed, mother of pearl dial with Arabic and baton markers, three dials for seconds, 30-minute and 12-hour registers, eccentric date aperture, protected crown, buttons in the band to operate chronograph, glazed snap-on back, Asprey strap and steel buckle, with box, blank International guarantee card and instruction booklet40mm wideCase with small surface scratches, strap in clean, steel buckle with small scratches, glass is clean, dial is clean, hand setting correctly, date changing correctly, chronograph is working, movement in going order.

Omega: A Stainless Steel Automatic Calendar Centre Seconds Wristwatch, signed Omega, Chronometer Officially Certified, model: Constellation, ref: 168.017, 1967, (calibre 564) lever movement signed and numbered 25371393, adjusted to five positions and temperature, grey dial with baton markers, date aperture, case with screw back and Constellation logo, inside back cover stamped with maker's mark Omega Watch Co and numbered ST168.017 34mm wideCase with surface scratches and dents in parts, back cover with opening tool scratch marks, plexi glass with one crack and scratches, dial with very small staining marks visible under an eyeglass, later bracelet, crown with Omega logo, hand setting correctly and the date is changing correctly, movement in going order.

Breitling: A Stainless Steel Automatic Calendar Chronograph Wristwatch, signed Breitling, Chronometer, model: Chronomat, ref: B13352, circa 2002, lever movement, black dial with baton markers, three champagne coloured dials for seconds, 30-minute and 12-hour registers, date aperture, outer tachymeter scale, steel and gold rotating bezel, screw down crown, chronograph buttons in the band, screw back numbered 330522, Breitling stainless steel bracelet with a deployant clasp, with Breitling boxes, service case, International warranty/instruction booklets, Chronometer paperwork, swing tag and one spare bracelet link39mm wideCase and bracelet with surface scratches, case sides, lugs and bezel with small dents, bezel with small scuff marks, bezel with the gold 15 and 45 minute markers missing, chronograph buttons are rubbed, glass with scratches and staining marks, dial surface with two very minor staining marks, hand setting correctly, date is changing correctly, chronograph is not working, movement is not working. Watch needs a full service. Inner black box lid with three letters missing from the Breitling spelling.

Omega: A Stainless Steel Automatic Calendar Centre Seconds Wristwatch, signed Omega, Chronometer Officially certified, model: Constellation, ref: 14902, 1962, (calibre 561) lever movement signed and numbered 20360713, adjusted to five positions and temperature, silvered dial with baton markers, date aperture, screw back with Constellation logo, back cover stamped inside with maker's mark Omega Watch Co and numbered 14902 62SC34mm wideCase with surface scratches, crown with Omega logo, later strap, plexi glass with minor scratches, dial is clean, hands with minor staining marks, hand setting correctly, date is changing correctly, movement in going order.

An Omega Constellation electronic chronometer F300hz wristwatch, An Omega Constellation electronic chronometer F300hz wristwatch, cal. 1250, the signed gold tone dial with baton hour markers, outer minutes track and date aperture to 3, signed quartz movement numbered 36915100, within a gold plated and stainless steel case, ref. 198 0075, with leather strap and maker's buckle, case diameter 35mm.Overall condition good to fairWatch working at time of cataloguing, Wilson 55 does not guarantee the working accuracy of any timepiece offeredLight scratches to case and glass in keeping with occasional wear

Bremont - Gentleman's Martin Baker limited edition Chronometer wristwatch, model MBIII, 115/310, white with applied black Arabic numerals, luminous tipped hands, date subsidiary at third hour, signed crown and case back, automatic movement, 43mm diameter (ex.crown), and a black 22-R001 Bremont strap, with black leather pouch containing the watch, black leather with red stitching spare strap and a fabric strap, dust bag and outer card box, techinical notes, warranty registration and Bremont ISO 3159 Test Certificate, purchased 03/09/2019

Rolex - Gentleman's Oyster Perpetual Datejust Chronometer stainless steel wristwatch, ref.16220, silvered dial with baton hour markers, luminous filled hands and sweeping centre seconds, date aperture at the third hour, outer seconds track in black with Roman markers, fluted bezel, signed crown, screw down case back, signed automatic movement no. 3135, 36mm diameter (ex.crown), on a Rolex stainless steel bracelet no. 62510 H, with deployant clasp, cased with outer card box, paperwork, guarantee, original purchase receipt, etc. and calendar card

Jaeger Watch Co. Inc. USA - World War II Type 2030R Chronoflite Aircraft Chronometer, the case back with original applied label with serial no. 813, 75mm diameter, mounted on an aluminum desk standThe reference may have been US Navy aircraft issue.

ZODIAC AUTOMATIC KINGLINE CHRONOMETER Gold plated round case, 34.5mm diameter, gold coloured dial, hands and batons, date at 3pm. Leather strap. Weight 43.2 grams. Condition Report : Currently working, sold as seen. Condition reports are offered as a guide only and we highly recommend inspecting (where possible) any lot to satisfy yourself as to its condition.

John Arnold, London. A silver key wind chronometer pocket watchDate: Circa 1780 and laterMovement: Gilt full plate Arnold spring detent, cut and compensated bi-metallic over sized OZ balance, helical balance spring, diamond end stone, No.93 394Dial: White, black Roman numeral hour markers, black outer minute track, subsidiary seconds at 6, gilt spade hands, No.93Case: Later engine turned hinged, Chester hallmark for 1899, blank cartouche to backSigned: Dial & movement, case stamped I.HSize: 57mm Accompaniments: Fitted wooden boxFor further information on this lot please visit Bonhams.com

Omega. A stainless steel manual wind chronograph bracelet watchModel: Speedmaster ProfessionalReference: 31030425001002Date: Purchased 11th December 2021Movement: 26-jewel Cal.3861 manual wind, co-axial escapement, No.83399436Dial: Black, luminous baton hour markers, white outer 1/5th second divisions, subsidiary dials at 3, 6 and 9 for seconds, 30 minute and 12 hour recording, white pointed baton hands with luminous inserts, centre chronograph handCase: Brushed and polished tonneau form, screw down exhibition back, twisted lugs, crown flanked by twin chronograph pushers, black tachymetre insert to bezel, No.83399436Strap/Bracelet: Brushed and polished Omega linkBuckle/Clasp: Signed folding claspSigned: Case, dial & movementSize: 42mm Accompaniments: Omega box, outer card, international warranty, chronometer certificate, pictograms card, operating instructions, swing tagFor further information on this lot please visit Bonhams.com

Rolex. A stainless steel automatic bracelet watchModel: ExplorerReference: 5500Date: Circa 1959Movement: 25-jewel Cal.1530 automatic, No.30436Dial: Black, white baton hour markers, Arabic numeral quarters, white outer minute divisions, polished Mercedes hands with luminous inserts, centre secondsCase: Brushed and polished tonneau form, screw down back and crown, inside back stamped IV.1958, No.419842Strap/Bracelet: Fitted 78350 Oyster linkBuckle/Clasp: Signed folding clasp, stamped RS2Signed: Case, dial & movementSize: 34mmFootnotes:Traditionally, the reference 5500 is associated with Rolex's Air-King design. For a few years in the 1960s however, Rolex also produced a small number of reference 5500 watches with Explorer dials that were almost indistinguishable from the classic Explorer Reference 1016. Instead of 'Superlative Chronometer Officially Certified' the dials would spell out 'Precision' or 'Super Precision' below the hands.For further information on this lot please visit Bonhams.com

Omega. A lady's stainless steel diamond set automatic calendar chronograph wristwatch with co-axial escapementModel: Seamaster Planet OceanReference: 22218385001001Date: Purchased 6th June 2012Movement: 37-jewel Cal.3313 automatic, adjusted to 5 positions, column wheel chronograph, co-axial escapement, No.78478499Dial: Black, applied luminous baton hour markers, white outer 1/5th second divisions, subsidiary dials at 3, 6 and 9 for seconds, 30 minute and 12 hour recording, date aperture between 4 and 5, polished arrow tipped hands with luminous inserts, centre chronograph handCase: Brushed and polished tonneau form, screw down back, uni-directional diamond set bezel, crown flanked by twin chronograph pushers, helium escape crown at 10, No.78478439Strap/Bracelet: Black Omega alligator leatherBuckle/Clasp: Signed folding claspSigned: Case, dial & movementSize: 38mm Accompaniments: Omega box, outer card, International Warranty, precious stones certificate, chronometer certificate, pictograms card, instructions for useThis lot is subject to the following lot symbols: YY Subject to CITES regulations when exporting items outside of the UK, see clause 13.For further information on this lot please visit Bonhams.com

†&nbspA VERY FINE GEORGE I BURR WALNUT EIGHT-DAY LONGCASE CLOCKGEORGE GRAHAM, LONDON, NO. 662 CIRCA 1725The five latched knopped pillar two train bell striking movement with thick plates measuring 7.625 inches high by 6 inches wide stamped 662 to the lower edge at the rear, the going train with bolt-and-shutter maintaining power, deadbeat escapement with inverted Y-shaped pallets, and regulated by the original brass-rod seconds pendulum with calibrated rating nut reading against a brass nib-piece to the lenticular bob, the rack strike train with finely worked steelwork and extensive use of cocks for the pivots incorporating distinctive sculpted feet screwed to the frontplate, the 12 inch square brass dial with narrow subsidiary seconds ring, shuttered winding holes, calendar aperture incorporating pin adjustment and oval plate signed Geo: Graham, London to the finely matted centre, within applied silvered Roman numeral chapter ring with diamond lozenge half hour markers and Arabic five minutes beyond the minute track, with scroll-pierced blued steel hands and double-screwed fine gilt Indian mask and scroll cast spandrels to angles with foliate strapwork engraved infill to the margins between, the right-hand edge with slotted lever for the bolt-and-shutter maintaining power and the lower edge engraved with repeat signature Geo: Graham, London, the movement and dial with original seatboard and secured via a brass T-bracket applied to the inside of the backboard behind the movement, the case with moulded upstand to the domed caddy surmount set on shallow mounded box upstand with cavetto moulded upper edge, over ogee moulded cornice, foliate scroll fretwork frieze and hinged front with glazed dial aperture flanked by three-quarter columns with crisply cast gilt brass capitals and bases to the front angles, the sides with fine scroll-pierced frets and conforming quarter columns set against bargeboards at the rear continuing up past the frieze to meet the underside of the lintel, the trunk with concave throat moulding over 40 inch rectangular door fronted with fine book-matched figured veneers within a slender herringbone border and complex cavetto cross-grain edge mouldings, the interior of the door with remnants of the original paper equation table beneath ivorine service label for CAMERER CUSS and various inventory numbers, the left hand top edge of the door punch stamped 662, the sides veneered with twin herringbone bordered panels within crossbanded surrounds, the plinth base with cavetto top moulding over herringbone bordered book matched veneered front and conforming single panel veneered sides, on cavetto moulded skirt.224cm (88.25ins) high, 49.5cm (19.5ins) wide, 26cm (10.25ins) deep. Provenance:The property of a central London financial institution; acquired prior to 1925 to form part of a collection housed in a purpose-built prestigious Georgian style office building.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 present clock is a fully-developed 'textbook' example of George Graham's highly refined design of longcase clock produced from just prior to 1720 until around the time of his death in 1751. Very much following in his former master's footsteps the fully latched movement incorporates bolt-and-shutter maintaining power, very finely finished delicate steelwork and extensive use of cocks for the under-dial motion and strike work. The escapement is of 'Graham' deadbeat type however this design of escapement was first used by Tompion for two regulators for Greenwich observatory in 1776. The original pendulum is a nice, relatively rare survivor and allows precise adjustment via the calibrated rating nut reading against a nib-piece applied to the large lenticular bob. The dial is beautifully finished with engraving between spandrels executed by Tompion's engraver 'G515' (see Dzik, Sunny ENGRAVING ON ENGLISH TABLE CLOCKS, Art on a Canvas of Brass 1660-1800 page 224). The case is beautifully proportioned with sophisticated mouldings and very well chosen tight-grained veneers laid to exhibit their fine figuring to best effect. The extensive use of fine scroll-pierced frets is a Tompion/Graham trait and details such as herringbone bordered crossbanded panels to each side of the plinth demonstrate an attention to detail beyond any other maker of the period.  Amongst George Graham's surviving walnut longcase clocks, number 661 (the preceding serial number to that of the present clock) was offered at Bonham's, London, sale of Fine Clocks 9th December 2008, (lot 141 - with no caddy superstructure present) for £80-120,000; and was more recently sold (with a restored caddy) by Ben Wright, Tetbury for an undisclosed sum. Number 681 is known as 'The Cay Graham' as it still retains its original record of sale to Robert Cay (1649-1754) in 1728...TO READ MORE, PLEASE CLICK HERE 

A FRENCH GILT BRASS GORGE CASED REPEATING CARRIAGE CLOCKDROCOURT, PARIS, FOR RETAIL BY E. WHITE, LONDON, CIRCA 1875The eight-day two train gong striking movement with slivered platform lever escapement regulated by sprung bimetallic balance, the frontplate stamped 11132 to inside lower edge and the backplate with Drocourt D C trademark to left hand margin over engraved retailers signature E. WHITE, 20, Cockspur Street, LONDON towards the lower edge next to repeat serial number 11132, the rectangular white enamel Roman numeral dial with Arabic five minutes beyond the minute track and with blued steel moon hands, the frosted gilt brass gorge case with hinged carrying handle over full-width top glass, trip-repeat button to front rail and channel-moulded uprights, on ogee-outline base.14cm (5.5ins) high with handle down, 9cm (3.5ins) wide, 8cm (3.125ins) deep. Pierre Drocourt is recorded in Allix, Charles and Bonnert, Peter CARRIAGE CLOCKS, Their history and development with further additions and corrections from research undertaken by Leigh Extence (available online) as born in 1819 and setting up in business as a clockmaker in Paris in 1853. He initially worked from Rue Limoges (later called 28 Rue Debelleyme after the rationalisation and merger of Streets in 1865), Paris and was succeeded by his son, Alfred (born 1847), in 1872. The blancs roulants, rough movements, were made in Saint-Nicolas-d'Aliermont, a town outside Dieppe, where Drocourt had workshops until their sale in 1904, being premises purchased from Holingue frères in 1875 who had previously supplied Drocourt. The firm was awarded numerous international exhibition medals and mentions including Silver in Paris 1878 and Gold in 1889. Edward White was a chronometer and carriage clock maker who operated from premises at 20 Cockspur Street, Pall Mall London from 1861 to 1890. He had close connections with Dent and exhibited at the 1862 Exhibition taking a four-page advertisement in the catalogue.  Condition Report: Movement is in clean working condition with no visible evidence of alteration or noticeable replacements. The dial has some very faint hairline cracks to the upper two and lower left hand corners - these can only be seen on very close examination. The case is in very good condition with only slight spotting to the gilt finish across the front skirt. There are no visible chips to the glasses.Clock does not have a winding key.Condition Report Disclaimer

A GEORGE I POCKET WATCH MOVEMENT IN LATER SILVER CASEGEORGE GRAHAM, LONDON, NO. 5078 CIRCA 1725, THE DIAL AND CASE 1795The gilt full plate single fusee movement with four square section baluster pillars pinned through the backplate, scroll-pierced stop-iron block and verge escapement regulated by sprung three-arm steel balance with Tompion type regulation, the backplate with fine symmetrical foliate scroll pierced and engraved balance cock with jewelled endstone and fine female mask at the junction with conforming pierced and engraved foot, flanked by silvered regulation disc set within adjacent applied scroll engraved panel infill opposing signature Geo. Graham, London and numbered 5078, now with a later slightly convex white enamel Roman numeral dial and gilt spade hands, the later silver inner case applied with suspension post and ring at twelve o'clock, fitted with convex glass to bezel and marked for London 1795 maker W.H. for William Howard II, the outer case with marks matching the inner. The pillar plate 3.5cm (1.375ins approx.) diameter; the outer case 5cm (2ins) diameter.  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 apprentice, Samuel Barclay (who subsequently entered into partnership with 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 present watch is noted in Evans, Jeremy, Carter, Jonathan and Wright, Ben THOMAS TOMPION, 300 YEARS as a timepiece in a silver case with no dates provided for the case hallmark. The nearest adjacent watches with recorded dates for their cases are 5065 dated 1724 and 5012 dated 1725. From this the movement of the present watch can be dated to 1724/25. 

A VICTORIAN AESTHETIC STYLE CARVED OAK QUARTER-CHIMING BRACKET CLOCKJOSEPH PENLINGTON, LIVERPOOL, LATE 19th CENTURYThe substantial four columnar pillar triple chain fusee movement chiming the quarters on a choice of either eight graduated bells or four gongs and sounding the hours on a further larger gong, the going train with anchor escapement regulated by heavy disc bob pendulum incorporating pivoted beam rise-fall regulation to suspension, the 8 inch wide engraved single sheet silvered brass dial with rosette decorated centre signed JOSEPH PENLINGTON, LIVERPOOL within chapter ring with vertically aligned Arabic cartouche numerals within stylised foliate motif decorated infill, the spandrels decorated with Japanese style feather medallions within stylised leafy infill continuing up to envelop the subsidiary CHIME/SILENT, SLOW/FAST and CHIME ON EIGHT BELLS/WESTMINSTER CHIME selection dials to the upper margin, with steel fleur-de-lys hands and set within a silvered brass canted surround, the case with ogee cornice over rectangular bevel-glazed door flanked by fluted shouldered pilaster uprights capped with rosettes, the sides with scroll-pierced rectangular sound frets and the flush rear with rectangular door set within the frame of the case, on generous ogee moulded skirt base carved with oval fan motifs flanked by flutes to both the front and sides over bun feet.52.5cm (20.75ins) high, 37cm (14.5ins) wide, 26.5cm (10.5ins) deep. Joseph Penlington was a highly respected watch and chronometer maker who is recorded in Mercer, Tony Chronometer makers of the World as working from several address in Liverpool 1828-87 including 39 Church Street 1828-34, 3 St. George's Crescent 1848-79 and 25 St. George's Crescent 1880-87. 

A FINE GILT BRASS MOUNTED MAHOGANY EIGHT-DAY MANTEL CHRONOMETERCHARLES WIELAND, LONDON, MID 19th CENTURYThe circular three columnar pillar single chain fusee movement with crescent-shaped backplate enclosing the greatwheel with Harrison's maintaining power and the centre wheel, the remainder of the train contained within a smaller three-pillar sub-plate including Earnshaw type spring detent escapement regulated by a split bimetallic balance with cylindrical timing weights and helical balance spring, with faceted diamond endstone and blued steel backcock securing screws, the 4.75 inch circular silvered Roman numeral dial with subsidiary seconds dial engraved 752 beneath signature Cha's Wieland, Commercial Road, LON,DON across the centre and Up/Down crescent-shaped state-of-wind indication to upper margin, the movement and dial secured via screws to the dial plate into a lacquered brass bowl with shuttered winding hole engraved Wind Up to the Left Hand Every Week to rear, the front with cavetto cast brass fixed dial surround enclosing bayonet fitted convex glazed moulded bezel, the case with gilt brass pineapple to the hipped 'chamfer-top' superstructure over slender cavetto cornice and ebonised fluted band to frieze, the front inset with brass fillet bordered recessed quadrant panels around the dial flanked by brass-lined canted front angles, the sides with gilt brass foliate ring handles and the flush rear with rectangular glazed door set within the frame of the case, on skirt base with conforming ebonised fluted band to upper edge and gilt brass ball feet; with probably original green baize-lined protective pine travelling case with a hinged brass top handle.The timepiece 40.5cm (16ins) high, 23.5cm (9.25ins) wide, 14cm (5.5ins) deep. Charles Wieland is recorded in Loomes, Brian Watchmakers and Clockmakers of the World, Volume 2 as working in London 1832-69. Wieland is further noted in Mercer, Tony Chronometer Makers of the World as working from 12 Warkworth Terrace, London 1842-72 and was then at 699 Commercial Road East in 1876; Mercer mentions that he made a chronometer clock 'without a number'. 

Ɵ&nbspHOROLOGICAL REFERENCE BOOKS ON MARINE CHRONOMETERS AND LONGITUDEEIGHT VOLUMES:Gould, Rupert T. THE MARINE CHRONOMETER, Its History and Developments facsimile of the original 1922 edition, Antique Collectors' Club, Woodbridge 1989, dj; Cronin, John THE MARINE CHRONOMETER, ITS HISTORY AND DEVELOPMENT The Crowood Press, Marlborough 2014, dj; Mercer, Tony Chronometer Makers of the World N.A.G. Press, Colchester 1991, dj; Mercer, Vaudrey THE FRODSHAMS THE STORY OF A FAMILY OF Chronometer Makers The Antiquarian Horological Society, Ramsgate 1981; Randall, Anthony G. The Time Museum Catalogue of Chronometers The Time Museum, Rockford IL 1991; Andrewes, William J.H. (editor) The Quest for Longitude Harvard MA, 1998, dj; Sobel, Dava and Andrewes, William J.H. The Illustrated Longitude Fourth Estate, London 1998, dj; Dunn, Richard and Higgitt, Rebekah FINDING LONGTITUDE Collins for Royal Museums Greenwich, London 2014, dj, (8). 

A VICTORIAN LACQUERED BRASS PORTABLE TIMPIECE WITH UNUSUAL CHRONOMETER-TYPE DETACHED ESCAPEMENTUNSIGNED, MID 19th CENTURYThe circular four ring-turned columnar pillar single fusee movement with Harrison-type maintaining power and six-spoke wheel crossings to all except the escape wheel, the unusual twin-arbor detached escapement with impulse provided via the balance arbor and locking/unlocking enabled via a pallet applied to a second arbor, controlled by a detent tripped by a discharging flag set beneath the impulse pallet, regulated by sprung three-arm monometallic balance with steel screw timing weights, the backplate with balance cock incorporating faceted diamond endstone, F/S regulation lever and sub plate for the escapement locking pallet arbor top pivot and cone-tipped depth adjustment screw, with a 3.25 inch slightly convex white enamel Roman numeral dial with blued steel spade hands, in a cylindrical brass case with finely moulded bayonet fitting convex glazed cast brass bezel applied to the drum engraved with O/S for 'open' and 'shut' positions at the junction between the two, with a suspension post and ring at twelve o'clock and the rear with press-on slightly convex cover incorporating fine moulded outer edge and shuttered winding hole, (evidence of some alteration).The movement 7.4cm (2.875ins) diameter, the case 9cm (3.5ins) diameter, 4.5cm (1.75ins) deep. The escapement fitted to the present timepiece differs from the standard form of sprung detent chronometer escapement in that the locking pallet is applied to a separate second arbor rather than a detent spring. The action of the locking pallet is controlled by a long needle-like lever fixed to its arbor, with the opposing end engaging with the discharging flag fitted to the balance arbor (beneath the impulse pallet). The rotation of the second pallet arbor is controlled by a small spring so that the locking pallet returns to its resting position, ready to lock the escape wheel, immediately after releasing.The movement plates have a few spare holes indicating that some alteration may have taken place however the escapement is very well executed and appears most likely contemporary with the rest of the mechanism. It is not unusual to see some spare holes/adjustments in the plates of semi-experimental timepieces, as these were often made for mounting/testing on a bench with casing-up often seen as an after-thought. Notwithstanding this the case is of notably solid construction with nicely executed details such as the fine mouldings to the outer edges. Condition Report: Movement is in clean working condition. The trains would suggest a duration of 1-2 days. As catalogued the movement plates have some spare holes so exhibit evidence of possible alteration/re-thinking however this evidence does not suggest that the timepiece has been adapted from another known type. Indeed it would appear that the movement is a one-off and experimental in nature. Dial is free form visible damage/restoration and the case is also in fine original condition.There is no winding key present with the present lot.Condition Report Disclaimer

Ɵ&nbspHOROLOGICAL REFERENCE BOOKS ON MARINE CHRONOMETERS AND LONGITUDEFIVE VOLUMES:Earnshaw, Thomas LONGITUDE. AN APPEAL TO THE PUBLIC: STATING MR. THOMAS EARNSHAW S CLAIM TO THE ORIGINAL IMPROVEMENTS IN HIS TIMEKEEPERS... British Horological Institute reprint of the original 1808 publication, Limited edition numbered 235/350, quarter bound with marbled boards; Gould, Rupert T. THE MARINE CHRONOMETER, Its History and Developments The Holland Press, London 1973, dj; Howse, Derek GREENWICH TIME, AND THE LONGITUDE Philip Wilson for The National Maritime Museum, London 1997, dj; Sobel, Dava and Andrewes, William J.H. The Illustrated Longitude Fourth Estate, London 1998, dj; Dunn, Richard and Higgitt, Rebekah FINDING LONGTITUDE Collins for Royal Museums Greenwich, London 2014, dj, (5). 

A 1960s automatic Omega automatic chronometer constellation gentleman's wrist watchthe gold plated case with champagne pie pan dial, baton numerals , date aperture, sword hands, observatory logo to the reverse, replaced strap, contained within a fitted leather case and card out casediameter of case 3.2cmCondition: Replaced strap. Case word, outer card case is also worn. The minute hand with some wear. In working condition but movement is not guarenteed.The crown appears to be replaced and the gilt on it is very rubbed. The bracelet is not Omega.

Movado purse watch with white arrow hands and hour markers, black dial, crocodile leather case and chronometer movement, 75 x 35mm when open, serial number M1225816. 

Zena Art Deco silver keyless winding open faced chronometer pocket watch with subsidiary seconds dial, blued hands, gold Arabic numerals and dial, niello case and unsigned movement, on white metal chain, case diameter 50mm, serial number 1511. 

Omega Constellation Megasonic 720 Hz gentleman's chronometer wristwatch with date aperture, luminous hands, two-tone baton hour markers, silver dial, stainless steel case and signed calibre 1230 movement, on stainless steel bracelet, case diameter 36mm. 

Omega Constellation automatic chronometer gentleman's wristwatch with baton numerals and date aperture on gold coloured dial, with original receipt, movement no 31901562 ref C0168017 10/6/74

Omega Seamaster Professional gentleman's automatic chronograph wristwatch ref. 212.30.42.50.01.001 with date aperture, luminous hour markers and skeleton hands, red centre seconds hand, black dial, grey sub-dials, stainless steel case and co-axial chronometer movement, on stainless steel bracelet, case diameter 42mm, serial number 86667671, in original leather box with outer card box, guarantee cards and related paperwork. 

M. J. Russell, London. A gold hunting cased keyless watch with start/stop centre seconds, 1908. Movement: gilded three quarter plate, jewelled lever escapement, no.19660. Dial: white enamel, Roman numerals, outer Arabic seconds, centre seconds. Case: 18ct gold, gold cuvette, start/stop slide to the band, Chester hallmark for 1908, maker’s mark BB. Signed: dial and movement signed M. J. Russell, Chronometer Markers, London. Dimensions: diameter 57.5mm. Together with a presentation case. £1,000-£1,500 --- Condition Report Movement: running at the time of cataloguing, start/stop slide working correctly. Dial: imperfection to the bevelled edge of the enamel chapter ring at VIII, otherwise in good condition. Case: scuffs throughout and some small indentations. Gross weight: 173.3gms. Please note that the above condition report is a statement of opinion only and may not specify all mechanical replacements or imperfections. Watches are opened to examine the movements, no warranties are made that the watches are water-resistant. The watch has not been tested for the accuracy of its time keeping and would benefit from a service at the buyer’s expense.

Bremont. A rare limited edition stainless steel diver’s wristwatch made for members of The Royal Household for the Coronation of King Charles III, ref. S500 Supermarine, circa 2023. Movement: cal. BE-36AE, automatic, antimagnetic, 25 jewels. Dial: dark blue, applied Arabic and baton indexes, apertures for day (in French & English) and date, King Charles cypher at 6 o’clock. Case: stainless steel, DLC treated case barrel, screw-down back with the Royal Standard, rotating calibrated bezel, gas escape value, dark blue rubber strap with stainless steel buckle. Signed: case, dial, movement and buckle. Dimensions: diameter 43mm. Accessories: warranty card, ISO 3159 certificate, instructions booklet, Nato strap, strap tool and presentation case. £4,000-£7,000 --- The Bremont Supermarine S500 ‘Coronation’ watch was commissioned by The Royal Mews, a division of The Royal Household, based at Buckingham Palace. This was in order to mark the occasion of the crowning of His Majesty King Charles III on 6 May 2023. The watch was limited to a production run of 50, with pieces only available to those working for, or closely associated with, The Royal Household. The dial displays the King’s cypher and the darkened 8 o’clock baton is in acknowledgement of the day Charles acceded to the throne on his mother’s death on 8 September 2022, with the case back depicting the Royal Standard. Bremont is an award-winning luxury watch brand based in Henley-on-Thames, England. Founded by brothers Nick and Giles English in 2002, they produce watches inspired by their love of flying and based on the ideals of British watchmaking. All their watches are either COSC or ISO chronometer rated and hand built in the UK. Condition Report Movement: running at the time of cataloguing, date advancing correctly. Dial: in excellent condition. Case: in excellent condition. Gross weight: 140gms. Please note that the above condition report is a statement of opinion only and may not specify all mechanical replacements or imperfections. Watches are opened to examine the movements, no warranties are made that the watches are water-resistant. The watch has not been tested for the accuracy of its time keeping and would benefit from a service at the buyer’s expense.

Rolex. A gold automatic wristwatch, Ref. 6048, Oyster Perpetual Chronometer ‘Bubbleback’, circa 1950. Movement: automatic, no. N1989. Dial: gilt, applied dagger indexes, centre seconds. Case: 18ct gold, screw-down back, no. 681433. Signed: case, dial and movement. Dimensions: diameter 32mm. £2600-3000 --- The reference 6048 is among one of the many different models that have become known as a ‘Bubble Back’. These early automatic movements are fitted with a large oscillating weight that required additional clearance to move freely, hence the large, dome-shaped case backs. Condition Report Movement: running at the time of cataloguing. Dial: in good condition. Case: scuffs throughout, some small indentations, crazing to the acrylic crystal. Gross weight: 50.8gms. Please note that the above condition report is a statement of opinion only and may not specify all mechanical replacements or imperfections. Watches are opened to examine the movements, no warranties are made that the watches are water-resistant. The watch has not been tested for the accuracy of its time keeping and would benefit from a service at the buyer’s expense.

An Omega stainless steel gentleman's wristwatch, Constellation Chronometer Electronic, 36mm, maker's bracelet and deployant buckle Wear scratches and slight knocks consistent with age. Sold as seen

A Soviet two day marine chronometer,  the 10.5cm painted dial signed in Cyrillic and No 493 in red, with brass and blued steel hands, gilt  finished chain fusee movement with Earnshaw type spring detent escapement and cut bi-metallic balance with helical spring, in gimbaled case with key, in two tier mahogany box Movement complete, fully wound but not running and requires attention. Externally in good condition

Omega Seamaster Olympic official timekeeper stainless steel co axial master chronometer, Ref. 522.32.40.20.01.004, Cal. 8800, Watch No. 89754444, limited edition No. 633/2032, black and white dial, with date aperture and red pulse reader, on black leather strap, boxed with papers and additional red leather strapCondition Report: Very good condition, very light wear to bracelet, clean dial and glass, case - couple of very minor scratches not detrimental or really visible, box some light wear otherwise good

Breitling, a ladies stainless steel Breitling chronometer wristwatch with black diamond dot dial housing roman numerals for 3, 6 & 9 and a date aperture at 3 o'clock & a 60 minute uni-directional diamond set bezel, stamped on backplate A71356, 976682, on a black leather Breitling strap, comes with leather Breitling case, (no papers).

ROLEX; a ladies' steel and gold Oyster Perpetual Superlative Chronometer wristwatch, the gold dial set with baton numerals, with crown logo at 12 o'clock and on winding crown, steel and gold head and bracelet strap, numbered to the reverse of the strap '466 B 78243', diameter of bezel excluding crown 2.37cm, with original box, pillow and outer Rolex box.Condition Report: This was part of a deceased estate and unfortunately the paperwork and booklet could not be located. At the time of cataloguing, the watch appears to be in going order, however this is no guarantee of working order. The watch has been worn, so under magnification, you will see scratches to the glass, head and strap. Otherwise a good watch. The centre gold links were tested on the Kee gold tester, which suggests 18ct.

A GENTLEMAN'S ROLEX OYSTER PERPETUAL DATE YACHT-MASTER CHRONOMETER, the silvered dial with luminius markers enclosing date at 3, centre seconds hand, revolving bezel, on stainless steel bracelet strap with deployment clasp, cased and boxed with credit card guarantee in wallet dated 2011, model no.16622, serial no. G355270, ref. no. 22830 (Illustrated) (Est. plus 24% premium inc. VAT)Condition Report: Working order, good

CHRONOMETER 'BREITLING - B-CLASS' Schweiz, 21. Jh. Stahl, Gold. Gehäuse D. 3,0 cm, Ges.-Gew. ca. 85,2 g. Perlmutt-Zifferblatt, bez. mit Herstellersignet, ' Chronometre Officiellement Certifie 100M/330FT', Stunden- und Minutenzeiger mit Leuchtmittel, Sekundenzeiger, römische Ziffern, drehbare Lünette mit Diamantbesatz, insg. 0,52 ct., Top Wesselton VVSI, Datum auf der '3', Krone auf der '3', Gliederband mit Faltschließe. Mit Karton, Garantiekarte und Zertifikat. Ein Verlängerungsglied anbei. Bei der Prüfung funktionstüchtig.

Automatic chronometer 36 mm. in diameter with leather band.

Chronometer automatic 32 mm. in diameter on leather band.

Marked Chronometer 1484 50 mm. in diameter 95 gram.

A marine chronometer style timepiece produced to celebrate The 500th Anniversary of the Discovery of America, in a wooden case with gimble support and electric movement together with three mid 20th century mantle clocks and a cased aneroid barometer by Short & Mason of LondonQty: 5All with minor marks and damages, the marine chronometer style timepiece in good condition, none guaranteed working

ROLEX - a stainless steel Oyster Perpetual 'Bubble-Back' automatic bracelet watch, ref. 6106, circa 1952, white dial with applied arrowhead hour markers, sweep centre seconds hand, red "officially" certified chronometer, with stainless steel Oyster expanding riveted bracelet, 2 jewel movement with calibre 76296, serial no. 802568, case width 34mm, working order with service box and papersMovement – currently working Dial - slightly discoloured all overGlass - quite heavily crazed when viewed at an angleHands - goodCase - general wear and light abrasions, no dents on casebackCrown – original, screw-down working, hands adjust smoothlyBracelet - associated Rolex steel bracelet, expanding links working, a few minor dents and general wear and abrasions all over, clasp working, wrist size approx 19cmNotes – with 1970s Rolex service box, 1966 Rolex guarantee booklet and 3 certificates of service dated 1969, 1972 and 1977

A Swiss silver (935 fineness) cased open face pocket watch, Roman numerals to a white enamel dial, subsidiary seconds dial, the interior cover engraved J B Dent & Sons Watch & Chronometer Makers To The Lords Commissioners Of The Admiralty And The British Government London, case 5 cm (d). [W]

Rolex Oyster Perpetual Datejust Chronometer Gents 18ct Gold & Steel Cased Wrist Watch. Model No. 16013. Features champagne dial, 18ct gold bezel. Rolex signed black leather watch strap & Buckle. Excellent condition case, dial and strap. With Rolex box and recently serviced.

Rolex - Oyster Perpetual Date-Just 18ct Gold and Steel Gents Chronometer Wrist Watch. Model No 116233 / 63603. Serial No 2064732K2, Purchased From Aspreys of London Dated 25-9-15. Features Champagne Dial, Just - Date Display Window, Luminous Markers, Chronometer Movement etc. Comes with Rolex Boxes ( 2 ) Rolex Sales Tag, Date of Purchase Rolex Wallet, Booklets. Condition ' As New ' Including Boxes - Please Confirm with Photo.

John Forrest of London Chronometer Maker To The Admiralty 9ct Gold Open Faced Key-Wind Pocket Watch. Ornate dial with subsidiary dial. Total weight 101.9 grams.

John Forest London Key-wind Sterling Silver Fusee Open Faced Pocket Watch. Chronometer Maker to the Admiralty. Serial No 80740. Hallmark Chester 1891. The Dial / Case / Movement Excellent Condition.

Rolex Oyster Perpetual Date Just Automatic Chronometer Ladies 18ct Gold & Steel Wrist Watch - Lugs Marked 468. Features A Champagne Dial. The Bezel And Middle Links To Bracelet 18ct Gold. The Dial, Case & Bracelet Excellent Condition. Comes With Rolex Box.

Rolex - Oyster Gents 18ct White Gold and Steel Perpetual - Chronometer ( Thunderbird ) Wrist Watch. Model No 16246. Features White Dial, Chronometer, Just - Date Display Window, 18ct White Gold Turn-o-Graph Bezel, Grey Ghost Dial, Automatic, Date of Production 1970 - 1980's. Complete with Rolex Boxes ( 2 ) Booklets, Tag, Rolex Calendar. All Aspects of Condition Are Excellent - Please Confirm with Photo.

A gentlemen's stainless steel and gold Eterna-Matic KonTiki chronometer automatic watch,36mm diameter, a circular stainless steel case to a gold bezel, tested as approximately 18ct gold, with a white enamel dial, gilt baton hour markers, gilt luminous baton hands, date aperture at 3, centre second sweep, seconds chapter ring to the bezel, case no. 1401.47, to associated brown leather strap and stainless steel buckle, with Eterna chronometer certificate and instruction booklet, additional paperwork comprising International warranty, original purchase receipt and Eterna catalogue to view onlyCondition ReportCurrently running. No guarantee as to timekeeping or continued running.Hands and date adjust. Unopened.Minor marks and scratches to surfaces.Very minor creasing to leather strap at buckle holes.With Eterna chronometer certificate and instruction booklet only.Additional paperwork comprising International warranty, original purchase receipt and Eterna catalogue to view only.

rolled gold Limit chronometer open face pocket watch the watch is ticking

Rolex Damenuhr Oyster Perpetual Daydate, Chronometer, Ref. 69173 aus 1986, Stahl/Gold mit Saphirglas und Zycloplupe, goldf. Zifferblatt mit Goldpunkten und vergoldeten Zeigern, verschraubter Krone und Boden, Automatik Cal. 2135 läuft, Jubileband Stahl Gold mit Faltschließe, Durchmesser 26mm, Höhe 11mm, Länge ges. ca. 17,5cm plus 2 Ersatzglieder, Gewicht ges. ca. 53,4g, mit Box und Chronometerzertifikat, Kaufbeleg, 2 Ersatzglieder

Gruen Chronometer Herrentaschenuhr Sprungdeckel, GG 585/000, im Gehäuse bezeichnet Conrad Felsing Berlin (Hofuhrmacher), Gehäuse poliert mit frontseitiger Gravur eines Wappens mit Bienenkorb und Bienen sowie Rüstungsteile und Ähren, feines versilbertes Uhrwerk mit Ankerhemmung, Temperaturkompensationsunruhe, Breguetspirale, Feinregulierung, läuft an, sollte revidiert werden, weißes Emaille Zifferblatt mit schwarzen arab. Ziffern und bez. Felsing Berlin, kleine Sekunde an 6 Uhr, gebläute Zeiger, Durchmesser 45mm, Höhe 8mm, Gewicht ges. ca. 60,1g

Victorian Silver Gentlemans’ Lot Item 1 - Sterling silver topped cane, ebonised wood. Birmingham 1898. Item 2 – Large sterling silver Goliath pocket watch, with key (good working order, with fusee, Chester 1900 - maker: John Forrest, London - 97835) and silver hammered case. Chronometer maker to the admiralty. (Weight without case: 220g)

The clock features sweeping Quartz movement powered by a single AA battery with Oyster perpetual date with superlative chronometer. It has glow in the dark luminescent hour markers and hand movement. Dealer Rolex green tag on verso. Dimensions: 17"H x 14.5"WManufacturer: RolexCountry of Origin: SwitzerlandCondition: Age related wear. Tested, working. Functionality not guaranteed.

Three Mantel Timepieces, brass carriage timepiece, and a Seiko Quartz chronometer battery driven mantel timepiece

A John Parkes & Sons Liverpool Chronometer Makers to the Admiralty brass Sextant, Y 344 with original fitted mahogany case and certification by Hezzanith Instument works dated 1929 with extra lenses, etc, box top is split and measures, (h 14cm x l x 28cm x w 27cm) coplete with key.

An Omega Automatic Chronometer Constellation 18ct gold cased wristwatch

Rolex - A steel 'Oyster Perpetual Date 34' wristwatch, circa 2012, model number 115200, serial number OL486825, the signed black dial, 30mm diameter, with silver coloured batons, hands, centre sweep and date window under a Cyclops at 3 o'clock, mechanical automatic chronometer rated movement, with liveried screw down crown, case, 34mm diameter, verso screw down, plain with brushed finish, to a steel 'Oyster' link bracelet with liveried fold over clasp numbered 8AU, presented in the original case with outer card box, guarantee booklet and card dated 21/9/2012, instruction booklet, seal, price tag, bezel protector and original receipt form Mappin & Webb Cambridge dated 21/9/2012

Rolex - A 2-tone 'Oyster Perpetual Datejust 25' wristwatch, circa 1981, model number 6917, serial number 7054046, the signed circular champagne dial, 21mm diameter, with gold coloured batons and hands, centre sweep and date window under a Cyclops at 3 o'clock, signed 28 jewel mechanical automatic chronometer rated movement number 10880, calibre 2030, with liveried screw down crown, steel case, 25mm diameter with gold coloured fluted bezel, verso screw down with brushed finish, engraved 2183, interior signed and numbered 6900, to a 2-tone 'Jubilee' link bracelet with liveried steel fold over clasp numbered 62523 D-18, R2 (For February 1993), the endlinks each marked 468B, presented with 2 additional links