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An Omega Constellation Chronometer Quartz movement stainless steel watch having a black dial with silver baton numerals and faceted hands. Date aperture to three. Set to an Omega stainless steel watch bracelet. Measures 3 cm diameter (face).

Courtanvaux (Francois-Michel-Cesar Le Tellier, Marquis de). Journal du voyage de M. le Marquis de Courtanvaux, sur la Fregate l'Aurore, pour essayer par ordre de l'Academie, plusieurs instrumens relatifs a la longitude. Mis en ordre par M. Pingre, Chanoine regulier de Ste-Genevieve, nomme par l'Academie pour cooperer a la verification desdits instrumens, de concert avec M. Messier, Astronome de la Marine, 1st edition, Paris, Imprimerie Royale, 1768, [2] + viii + 316 + [4] pages, with 5 engraved plates (including 4 folding) and folding engraved map, recent antique-style blind-decorated full calf with contrasting central lozenge to each cover, gilt spine with blind tooled decoration between raised bands, contrasting morocco title label, 4to National Maritime Museum Catalogue I, 1149a. Norman 1335.The present work, largely composed by Alexandre-Gui Pingre (1711-1796) and Charles Messier (1730-1817) is the report of a voyage in the frigate l'Aurore, fitted out by Courtanvaux at his own expense, to assess the various competitors for the prize offered by the French Academie des Sciences for the first successful method of accurately measuring longitude. The main contender was the Horloger du Roi, Pierre Le Roy (1717-1785). He had invented a completely original marine chronometer in the 1750s, which he perfected over the next decade and presented to Louis XV in 1766. In 1767 Le Roy entered his machine, which "embodied all the principles upon which later marine chronometers were constructed", in the competition. The voyage between Le Havre and Amsterdam was the first practical trial to which it was subjected. Le Roy was awarded a double prize in 1768 for his chronometer and for his memoir describing it. The first four chapters give a detailed account of the different methods employed from the 15th to the 18th centuries to determine longitude. The rest of the work describes the voyages and the experiments carried out, and finishes with a description of Le Roy's marine clocks. (1)

A Victorian walnut cased two day marine chronometer by Frodsham & Keen, the circular single fusee brass movement with four turned pillars and Harrison's maintaining with an Earnshaw type spring detent escapement and split bi-metallic balance and helical balance spring, with an engine turned backplate, the 4inch silvered dial with Roman numerals, subsidiary seconds and up/down dials, signed 'Frodsham & Keen, 17. South Castle St. Liverpool' and numbered 'No.3390', mounted on a brass gimbal, the twin hinged case with brass mounts and mother of pearl maker's plaque and escutcheons, the lid with a vacant brass plaque, the sides with sunken brass handles, 18.8cm high, 18.3cm wide, 18.2cm deep, together with a book on the Frodhsams, Vaudrey Mercer, The Frodshams, The Story of a Family of Chronometer Makers. (2)click here to view the page turning catalogue

A gentleman's Omega "Constellation" automatic chronometer wrist watch, the off-white dial with gilt numeral batons and sweep seconds hand, contained in stainless steel case, 39mm diameter, with non conforming stainless steel bracelet for same, contained in red leather covered Omega box

AN OMEGA CONSTELLATION AUTOMATIC CHRONOMETER GENTLEMAN'S WRISTWATCH, baton dial, date aperture, plated bracelet strap in original box

A RARE GENTLEMAN'S 18CT YELLOW GOLD ROLEX DAY-DATE DIAMOND AND SAPPHIRE WRIST WATCH the oyster case with fixed fluted bezel enclosing a champagne dial with sapphire dot hour markers and a string of brilliant cut minute markers, day aperture at twelve and date aperture at three fronting a chronometer automatic movement, on 18ct yellow gold president bracelet with concealed deployment clasp 36mm diameter - recently refurbished by a Rolex watch agent

ASMUS JOHANNSEN & Co. LONDON. A RARE LATE 19TH CENTURY 8 DAY MARINE CHRONOMETER having a brass gimbled drum shaped case enclosing a 5" silvered engraved dial with subsidiary seconds dial and power reserve, the centre of the seconds dial engraved with the government broad arrow, serial number and dated 1897. The high quality 8 day chain driven fusee movement with spotted plates and ring-turned pillars, Harrison maintain and bimetallic weighted balance wheel with Earnshaw type detent escapement, all fitted in a brass bound three tier mahogany case with original locking key and tipsy winding key 22cm high 21cm wide and 21cm deep

CHARLES FRODSHAM, LONDON No. 2534. A MID 19th CENTURY TWO DAY MARINE CHRONOMETER the brass case with threaded screw bezel enclosing a 3.5" silvered engraved dial having Roman numerals with subsidiary seconds dial and power reserve fronting a signed chain driven fusee movement with Earnshaw type detent escapement and Harrison maintaining power enclosed in a brass bayonet fit dust cover in associated mahogany three tier box with brass bound corners 17cm high

JOSEPH WINNERL, PARIS A FINE MID 19th CENTURY FRENCH TWO DAY MARINE CHRONOMETER the 3" silvered engraved Roman dial with subsidiary seconds and power reserve dials fronting a fusee chain driven movement with Harrison maintaining power and Earnshaw - type detent escapement with diamond end stop enclosed in gimballed case and mounted in mahogany case with sliding viewing aperture to lid; has its original long shafted tipsy key 14cm squareConditionThe chronometer is in unrestored condition but looks complete. The fusee chain has become unattached from the spring barrel but hasn't snapped, the platform escapement is in good condition. The wheel from the backplate that holds the spring tight is missing

JOHNSON, LONDON. AN EARLY 19th CENTURY TWO DAY MARINE CHRONOMETER the 3" silvered dial signed and numbered '285' enclosed in a brass gimbled case with convex glass threaded bezel, the chain driven fusee movement with jeweled Earnshaw type detent escapement and Harrison maintaining power mounted in the original three tier brass bound mahogany box 15cm square

WHYTE, THOMSON & CO. GLASGOW. A LATE 19th CENTURY MARINE CHRONOMETER the brass gimbaled case enclosing a 4" silvered engraved dial with subsidiary seconds dial and power reserve fronting a 56-hour chain driven fusee movement with spotted plates, spring detent-escapement and weighted balance wheel. The chronometer is fitted in it's original brass bound mahogany carrying case 18cm square

A Victorian oak box, possibly for a ship's chronometer, a brass hanging incense burner, three pairs of binoculars and a Marley horse group (A/F)

A modern gents Seiko Kinetic watch, a gents Manis chronometer wristwatch, together with a watch display case

GENTLEMAN'S MATHEY TISSOT CHRONOMETER STAINLESS STEEL MANUAL WIND WRIST WATCH, the round dial with Arabic 12 and two wedge hour markers, with three subsidiary dials at 3, 6 and 9, telemeter scale, outer tachymeter scale, 30mm case, lacking strap, lacking box and papers

GENTLEMAN'S HELVETIA CHRONOMETER GOLD PLATED MANUAL WIND WRIST WATCH, the round cream dial Arabic numerals and dot hour markers, with subsidiary seconds at 6, day and month aperture at 10 and 2, 34mm case, on an expanding gold plated strap, lacking box and papers

Gentlemen's Breitling Navitimer World stainless steel wristwatch, model no. A2432212/G571, circa 2017, case size 46mm, automatic chronograph chronometer movement, rotating bezel, silver dial, stainless steel case, on brown crocodile-skin leather strap with Breitling deployment clasp.This watch was purchased new on 06-03-2017 with a 2 year warranty at time of purchase and comes complete with the International Warranty card, certificate, instruction booklet, travel pouch / case and box. New retail price approximately £4,900

A 20th century German two day marine chronometer, Wempe, Hamburg 6313, the two tier case of characteristic form, the 3.5 inch silvered Roman dial with blued steel beetle and poker hands, with subsidiary up and down dial and running seconds, the single chain fusee movement with Earnshaw type detent escapement maintaining power and helical spring to the bi-metallic compensated balance with cylindrical timing weights, height 7.25in.

A Gents vintage Omega Speedsonic F 300hz Chronometer Seamaster wristwatch

Swiss 9ct rose gold chronometer half hunter pocket watch, engraved Ancre ligne droite 16 rubis Balancier Chronometre, spiral breguet chaton no11014, stamped 9K Condition Report Click here for further images, condition, auction times & delivery costs

A Two Day Marine Chronometer, signed Thomas Mercer Ltd, St Albans, England, No.23371, circa 1950, two tier case, 4-inch silvered Roman numeral dial signed and numbered, two dials for seconds and 56-hour up/down power reserve indication, blued steel spade hands, single chain fusee movement with a detent escapement, bimetallic balance with timing screws and weights, free sprung helical hairspring, maintaining power, movement contained in a brass gimbal, 17cm high24.08.18, Case with scratches and small dents, top glass panel is dirty, metal mounts are discoloured and rubbed, gimbal and locking lever is discoloured and stained, bevelled glass with scratches, dial is slightly discoloured and with small staining marks, dial with minor scratches, reserve power indicator hand is moving correctly when winding the movement, movement is dirty and needs cleaning, movement top plate with finger staining marks to the outer borders, movement is winding smoothly, movement in going order, balance with a good action, inside key is discoloured.

An Eric Chevillard wrist watch/chronometer.

Gents Rolex Oyster Perpetual Date, Superlative Chronometer Wristwatch, Model Ref 1500 Serial Number 697331, Champagne Dial, Baton Numerals, Center Seconds, 35mm Stainless Steal Case, Working Order

OMEGA; a 1970s gentleman's Constellation Automatic Chronometer, the rounded square dial set with baton numerals and with date aperture, on replaced stainless steel and gilt brick link bracelet, the original bracelet present, with a repair receipt dated 2012. CONDITION REPORT: Postage for this lot would be approximately £15 + VAT within the UK.

OMEGA; a late 1960s/early 1970s stainless steel and gilt Constellation Automatic Chronometer, the circular dial set with baton numerals and with date aperture, diameter 3.5cm excluding winding crown, on leather strap. CONDITION REPORT: Photos of movement not possible unfortunately. Runs when wound but this is not a guarantee of working order, surface scratches to front and back of case and glass.

Omega; A Vintage Electronic F300 Hz De Ville Chronometer Gent's Wristwatch, the signed dial with line markers, date aperture and centre seconds, on a strap with Omega buckle.

A 19th century naval chronometer by John Fletcher, the 4" silvered dial engraved 'John Fletcher 4, Lombard St, London 1502, Maker to the Admiralty', in brass bell case but without supporting mahogany case

A GENTS OMEGA ELECTRONIC F 300 HZ GENEVA CHRONOMETER 1970'S WRISTWATCH, gold plated, with day date, on leather strap (inscribed on case)Condition: back cover fully inscribed and dated 1975, the front surround is scratched but no base metal showing through, the glass has a residue like glue around 6 and 7 o’clock, date and time can be changed but can’t get day to alter from ‘Wed’, it will click on to Tues but then clicks back to ‘Wed’, watch has clearly been used and exhibits general wear and tear

A ladies Rolex Oyster perpetual datejust chronometer wristwatch, with bi-coloured Jubilee bracelet, champagne baton dial, model 179173, case number M258780, with original box, certificate, packaging etc.

A gentleman's Rolex Oyster Perpetual Datejust Superlative Chronometer wristwatch, stainless steel with gilt bezel, winder and bracelet details, 26 jewel movement no.D970940, movement running when catalogued (no warranty offered nor implied)

Five various watches, including a Liga chronometer, together with a George III mahogany tea caddy

An Edwardian silver keywind chronometer pocket watch by JH Steward, London.

A gents stainless steel Marvin chronometer victory manual wristwatch with silvered dial, baton markers and date display.Condition report intended as a guide only.Running.

A gents stainless steel Rolex Oyster Perpetual 'bubble-back' chronometer wristwatch, circa 1938, ref. 2764, signed silvered dial, automatic movement, Oyster Patent crown, back cover numbered 2764 75667, and with further engraved monogram and bears date 20.8.38, dia. 30mm, on later leather bracelet Condition Report / Extra Information We are unable to remove the back (evidence that someone has previously tried with difficulty).Scratched and with abrasions to case and back edges.Further small scratches around lugs.Dial surface slightly spotty, possibly due to damp/moisture.Numbers and letters all crisp and clear.Lettering below '6' reads Swiss Made and Fab. Suisse.Spring on crown feels slightly awkward but hands still move OK.Winds and appears to be currently working, unknown how well it keeps time.No box.Later bracelet.

A gents steel Breitling Navitimer 1461 limited edition chronometer wristwatch, having black dial with fine outer scale, four subsidiary dials for week of the year, day and hour, month and date, and seconds and date, full chronograph function, original Breitling steel bracelet, reference A3802212U, serial number 0978, limited edition number 0978/1000, case dia.41.5mm, in original bakelite box with Breitling tag and spare bracelet link, together with papers, leather travel case and outer card box Condition Report / Extra Information Appears immaculate and very little if ever worn.

A lady's Rolex bi-metal Oyster Perpetual Datejust, Superlative Chronometer Officially Certified wristwatch, the champagne dial having diamond set markers, Rolex crown at 12 o'clock, automatic movement, gold bezel and crown, on original bi-metal bracelet, serial number 3002Z616, model number 179173, dia.26mm, with International Guarantee card, some papers and purchase receipt from Dickson Watch & Jewellery of Hong Kong dated March 2015, Rolex pouch but no box

A gentleman's 18ct Rolex Oyster Superlative Chronometer, the round dial with baton numerals, gilt hands, face stamped 'Rolex Oyster Perpetual Superlative Chronometer Officially Certified', automatic movement, case dia. 33mm. With replacement non Rolex gold plated strap, no box or papers Condition Report / Extra Information Case tests as approx 18ct.Back is stainless steel.The back is tightly shut and we are unable to open it.

A gentleman's Omega Constellation Chronometer Electronic f300Hz, the round buff coloured dial, 34mm diameter, with baton numerals, black hands, red seconds hand, calendar function, inner case stamped '18k 0.750' no.198003, twelve jewel battery movement stamped 'Omega 1250 29158802', outer case with personal inscription, on replacement leather strap

Victorian station masters chronometer watch case marked Chester between the 2 May 1890 - 5 July 1890, Jesse Hallam case maker Coventry. Approx 59mm case diameter. With key, running when tested.

Gents Rolex Oyster Perpetual Date, Superlative Chronometer Wristwatch, Model Ref 1500 Serial Number 697331, Champagne Dial, Baton Numerals, Center Seconds, 35mm Stainless Steal Case, Working Order

A 1970s Omega Constellation Chronometer Electronic F300 Hz 18ct gold cased gentleman's wristwatch, circular 36mm case, baton numerals and date aperture, rear cover no. 198 003, movement no. 32874369, overall good, presented on a 9ct gold mesh link bracelet, 82.4g

A c1970s Omega Constellation Automatic Chronometer 18ct gold cased gentleman's wristwatch, circular 34mm case, baton numerals and date aperture, rear cover no.s 14393/94 SC-5 373589, good condition, movement no. 19410726, appears to run, on later brown leather strap

A c1970s Omega Constellation Automatic Chronometer 18ct gold cased gentleman's wristwatch, circular 35mm case, silvered dial with batons and date aperture, rear cover no.s 1695004 273432, engraved H.E. Means Upwell, movement no. 20390099, appears to run, on later yellow metal strap, 75.5g

A hallmarked silver pocket chronometer, (understood to be in w/o).

18ct gold pocket watch with stop watch function by M.J. Russell, London , white enamelled dial, Roman numerals to chapter ring, crown winding brass plate lever movement engraved 'M.J. Russell Chronometer Maker London No 18180', the 18ct gold case with applied floral border, hallmarked Chester, case size 55mm, stop watch button to side, gross weight 146.8g. For a condition report on this lot visit www.peterwilson.co.uk

A mid 19th century two-day marine chronometer by Thomas Roberts (34 Strand St. Liverpool). The three tiered, brass-bound mahogany cased with glass viewing lid, lifts to reveal brass bevelled chronometer on gimble bracket. The silvered face has both Roman and Arabic numerals and two subsidiary dials, with the maker's name in cursive. Two-day, chain driven fusee movement with Harrison maintaining power, spring detent escapement and blued helical hairspring. 19 x 18 x 18 cm. Contained within a secondary mahogany box with fittings in order to screw the container to the ship. 23 x 24 x 24 cm. For a condition report on this lot visit www.peterwilson.co.uk

An early 19th century marine chronometer by Brockbank & Atkins, London, No. 1167. The three tiered mahogany case with brass carry handles and ivory plaque with the serial no. 1167, the double lid lifts to reveal the brass bevelled chronometer on gimble bracket. The silvered face has both Roman numerals and two subsidiary dials with Arabic numerals and bears the maker's name in cursive. Two-day, chain driven fusee movement with Harrison maintaining power, spring detent escapement and blued helical hairspring. 16.8 x 15.7 x 15.7 cm. For a condition report on this lot visit www.peterwilson.co.uk

An Omega Chronometer wristwatch in stainless steel case, with silvered dial and baton numerals and subsidiary dials at three, six and nine o'clock, on stainless steel bracelet, complete with box

Omega constellation wristwatch watch the signed dial marked chronometer, officially certified with hour batons, minute markers, date at 3 within gold aperture fitted with a 564 calibre 24 jewel automatic movement numbered 271217513, the steel case back with observatory inset and marked inside 168.005 and fitted to an expanding bracelet, together with an Omega ladies Seamaster watch on later fabric bracelet. . constellation has scratches to glass and wear to case sides.

Four pocket watches, silver pocket watch, white enamel dial with Roman numerals and subsidiary dial, two Ingersoll pocket watches and base metal Best Patent Lever pocket watch, in an Omega Constellation box automatic chronometer . Silver pocket watch missing minute hand, subsidiary dial hand, damage to enamel near 8 o'clock, glass scratched, gross weight 78.2 grams, movement not working Ingersoll with black dial, chrome case, currently working but has not been tested for time keeping, light scratches to glassIngersoll with white and black dial, missing minute hand and glass, not currently workingBest Patent Level pocket watch, crown is loose, rusted case, hour hand missing

An Omega Constellation Chronometer gentleman's steel cased wristwatchThe signed dial with baton hour markers and date aperture, the signed 24 jewel automatic movement numbered 25266297. CONDITION REPORTS: Generally in good condition, expected wear.

A lacquered brass ship's chronometer,early to mid 20th century, by A Johannsen & Co., the silvered dial with two subsidiary dials, in a teak and glazed case, and with a further carry case,dial 11.5cm

A Stainless Steel Automatic Centre Seconds Wristwatch, signed Omega, Chronometer Officially Certified, model: Constellation, ref: 167.005, 1963, (calibre 551) lever movement signed and numbered 20910799, adjusted to five positions and temperature, silvered dial with baton markers, screw back with Constellation monogram, Omega steel buckle, 34mm wide, with Omega box and purchase receipt see illustration 20.06.18, Case with surface scratches , case with minor dents in places, case is dirty, back cover with small opening tool scratch marks, back cover with black residue from the inside rubber seal to the edge, later strap, plexi glass with scratches, dial with staining marks throughout, hand setting correctly, movement is dirty, movement in going order.

A Gold Plated Automatic Calendar Centre Seconds Wristwatch, signed Omega, Chronometer Officially Certified, model: Constellation, ref: 168017, 1968, (calibre 564) lever movement signed and numbered 26384085, adjusted to five positions and temperature, maroon coloured dial with baton markers, date aperture, stainless steel screw back with a constellation monogram, numbered inside 168017 SP, Omega gold plated bracelet with a deployant clasp, 35mm wide see illustration 20.06.18, Case and bracelet with surface scratches, case lugs with minor rubbing to the plated surface, bracelet with slight rubbing to the plated surfaces, bracelet clasp ribbed decoration is rubbed, plexi glass with small scratches, dial is clean, hand setting correctly, date is changing, movement is clean, movement in going order.

A Stainless Steel Automatic Centre Seconds Wristwatch, signed Omega, Chronometer, model: Constellation, circa 1970, lever movement, silvered quarter section dial with baton markers, screw back with constellation monogram, 34mm wide see illustration 23.07.18, Case with surface scratches, case sides and lugs with minor dents, back cover with small opening tool scratch marks, plexi glass with scratches, dial is clean, later strap, hand setting correctly and winding smoothly, movement in going order, case back is tight and was unable to open the back cover.

A gentleman's stainless steel Omega Constellation Wristwatch, circa 1967, with Swiss 24-jewels automatic movement, signed Omega Watch Co. and numbered 20920935, calibre 551, the silvered dial with silver baton markers, signed Omega Automatic Chronometer Officially Certified Constellation, case embossed with logo, case appx. 1?in (35mm) diameter, on stainless steel bracelet with Omega clasp, together with original certificate and guarantee dated 01.04.1967.

A gentleman's stainless steel Omega Constellation Wristwatch, circa 1966, with Swiss 24-jewels automatic movement, signed Omega Watch Co. and numbered 23046323, calibre 561, the silvered dial with gilt baton markers and date aperture, signed Omega Automatic Chronometer Officially Certified Constellation, case embossed with logo, case appx. 1?in (35mm) diameter, on black leather strap with Omega buckle.

A 1987 Rolex Oyster Perpetual Datejust Chronometer gentleman's stainless steel bracelet Wristwatch, serial no. 9163371, model no.16030, the case with engine-turned stainless steel bezel, screw case back, screw down Rolex winding crown, grey dial with applied baton hour markers, date window at 3, signed Rolex Oyster Perpetual Datejust, Superlative Chronometer Officially Certified, automatic movement, fitted with stainless steel Rolex bracelet, together with original sales receipt and guarantee dated 30.07.87. This watch was serviced by Rolex on 27.02.2018 and comes with pouch, 2-year guarantee booklet and card, the servicing invoice for £1,315 including a bracelet exchange. The watch is in very good condition.

An Omega Electronic f300Hz Geneve chronometer date wristwatch, the case back bears inscription

A pocket watch, Art Deco dial, signed chronometer and a Sekonda dress pocket watch

A vintage gent's 18k gold Rolex chronometer wrist watch with separate second hand CONDITION REPORT TICKS OK32mm diameter