Winnerl, No. 433, circa 1845.Very fine and rare 18K gold, 32 hour going, early keyless pocket chronometer with power reserve indicator, in original fitted box.

C. Four body, massive, "forme quatre baguettes" by Jules Perot (Master mark), engine-turned, the back engraved with the monogram: "C.M.". Hinged gold cuvette. D. White enamel by Droz (signed on the enamel backing) with Roman numerals, subsidiary seconds and Up-and-Down sector. M. 18''', frosted and gilt three-quarter plate with cylindrical pillars, fusee with chain and maintaining power, spring detent escapement, two-arm compensation balance with gold wedged poising weights and timing screws, dimond end-stone, free sprung blued steel helical balance spring with terminal curves.Signed on the dial, cuvette and movement.Diam. 47 mm.

Delépine Jeune, (27, rue Coquillière), Paris, compteur pour observation made for the Exposition des produits de l'industrie française en 1844, the second of the instruments mentioned by the Jury Central for the attribution of the Silver Medal.Very fine and large silver watch with early split-centre seconds recorder.

C. Four body, massive, "forme quatre baguettes", by Jules Frédéric Favre (Master mark), engine-turned. Hinged silver cuvette. D. Frosted silver eccentric with Roman numerals, outer Arabic centre seconds ring on border of the bezel. Blued steel Breguet hands.M. 21''', gilt brass, bar calibre with going barrel,15 jewels, counterpoised lateral lever escapement, cut bimetallic balance, Breguet balance spring. Early split-seconds recorder operated by means of a single pull-twist piston through the pendant.Signed on the dial and cuvette.Diam. 55 mm.

Fecit Delépine, (27, rue Coquillière, Paris), No. 832, was awarded the Silver Medal at the Exposition des produits de l'industrie française en 1844.Very fine and large silver pocket chronometer.

C. Four body, massive, "forme quatre baguettes", by Léopold Secheret (Master mark), engine-turned. Hinged silver cuvette. D. Frosted silver with Roman numerals, outer minute ring and subsidiary seconds. Blued steel "spade" hands. M. Gilt brass half plate, fusee with chain and maintaining power, Louis Berthoud's type pivoted detent escapement, two-arm compensation balance with cylindrical poising weights and timing screws, free sprung blued steel helical balance spring with terminal curves, rubynd-stone.Signed on the dial, cuvette and back plate.Diam. 66 mm.

French, circa 1880.Very fine and rare 60 hour going mahogany marine chronometer with power reserve indicator and Winnerl continuous auxiliary compensation balance.

C. Three body mahogany box with internal handles, the glazed upper section with hinged lid. Brass bowl and gimballed suspension. D. Silvered spotted finished, with Roman numerals, outer minute ring subsidiary seconds and Up-and-Down scale. Gilt brass "pear" hands. M. Brass spotted finished, full plate with conical pillars secured by screws, inverted fusee with chain and maintaining power, Earnshaw type spring detent escapement, Winnerl continuous auxiliary compensation balance diamond end-stone,free sprung blued steel helical balance spring.Dial diam. 80 mm.Dim. 16,5 x 15 x 15 cm.

Jarossay & Compagnie à Paris, circa 1850.Very fine and rare, Brazilian rosewood centre-seconds wall regulator with worm-screw gearing, constructed after the patents No. 215 and 216 fromOctober 16, 1844.

C. Rectangular, moulded with four fluted and twisted columns, shaped pediment, glazed door and side panels. D. White enamel small eccentric hour and minute chapter ring with Roman numerals, outer Arabic second ring on the bezel's border. Blued steel Breguet hands. M. Brass, with separate twin going barrels wound separately, but geared to drive around a fixed pinion and providing power by means of a large pulley with an endless rope transmitting the drive to the worm-screw gear train, pin-wheel ecapement, with seconds-beating Steel-rod pendulum, with spring suspension. Highly unusual temperature compensation provided by a long steel rod with micrometric adjustment at the lower end and lifting the pendulum suspension by means of a lever.Signed on the dial and on the bridge linking the barrels.Accompanied by copies of the original patent.Dim. 143 x 36 x 19 cm.

Vissière, 56 rue de l'Ouest, Paris, No. 243, sold to the Dépôt de la Marine, circa 1860.Fine small mahogany, 49 hour going, marine chronometer with regulator dial and power reserve indicator.

C. Three body mahogany box with external brass handles, glazed upper section with hinged lid. Brass bowl and gimballed suspension mounted on shock absorber. D. Silvered with subsidiary small Roman hour chapter ring, symmetrical Arabic seconds ring and Up-and-Down sector below, outer Arabic minutes ring on the border. Blued-steel Breguet hands.M. Brass full plate with cylindrical pillars secured by screws, fusee with maintaining power, Earnshaw type spring detent escapement two-arm bimetallic compensation balance with cylindrical weights and timing screws. Free sprung polished-steel helical balance spring with terminal curves and diamond end-stone.Signed on the box, dial and movement.Dial diam. 80 mm.Dim. 16 x 16 x 17 cm.

M. Viel-Robin, Paris, No. 151, circa 1870.Fine and unusual mahogany, four day going chronometer with power reserve indicator.

C. Double body box. Brass bowl and gimbal suspension. D. Silvered with Roman numerals, subsidiary seconds and Up-and-Down scale. Polished steel Breguet hands. M. Brass three-quarter plate with cylindrical pillars, fusee with chain and maintaining power, Henri Robert type pivoted detent escapement set in a smaller circular cage, two-arm compensation balance with wedged weights and timing screws, free sprung blued steel helical balance spring.Signed on the dial. Dial diam. 115 mm.Dim. 18,5 x 19,5 x 19,5 cm.

E. Delépine à St. Nicolas, près Dieppe, France,No. 1764, made in 1896.Fine 49 hour going mahogany marine chronometer with power reserve indicator.

C. Three body mahogany box with external handles, the glazed upper section with hinged lid. Brass bowl and gimballed suspension. D. Silvered with Roman numerals, outer minute ring subsidiary seconds and Up-and-Down sector. Gilt brass "pear" hands. M. Brass spotted finished, full plate with cylindrical pillars secured by screws, inverted fusee with maintaining power, Earnshaw type spring detent escapement, two-arm compensation balance with cylindrical weights and timing screws, diamond end-stone,free sprung palladium helical balance spring.Signed on the dial, back plate and mahogany box.Dial diam. 92 mm.Dim. 16,5 x 16,5 x 17,5 cm.

Barraud, Maker to the Royal Navy, 41 Cornhill, London, No. 2736, circa 1850.Very fine, small, rosewood, 56 hour going marine chronometer with power reserve indicator and Lund's middle temperature error compensation.

C. Three body rosewood box, with brass stringing and sunk brass handles, all the edges and corners protected by heavy brass inlay, the glazed upper section with hinged lid. Brass bowl and gimballed suspension. D. Silvered with Roman numerals, subsidiary seconds and Up-and-Down scale, applied with gilt bronze Royal shields. Gold "spade" hands.M. Brass full plate with cylindrical pillars secured by screws, the back plate relieved for the barrel, fusee with chain and maintaining power, Earnshaw type spring detent escapement, two-arm balance with a wedge weight, timing screws and one of Lund's patent correcting weight, giving continuous auxiliary compensation. Free sprung blued steel helical balance spring with terminal curves; diamond end-stone.Dial diam. 100 mm.Dim. 18 x 17 x 17 cm.

Dent, Chronometer Maker to the Queen, London, No. 2836, circa 1858.Very fine 56 hour marine chronometer with power reserve indication and Dent's prismatic continuous auxiliary compensation balance, second form.

C. Three body mahogany box with brass corners, fixings and sunk brass handles, glazed upper section with hinged lid. Brass bowl and gimballed suspension. D. Silvered with Roman numerals, subsidiary seconds and Up-and-Down scale. Blued steel "pear" hands.M. Spotted brass full plate, relieved for the barrel, cylindrical pillars secured by screws, fusee with chain and maintaining power, Earnshaw type spring detent escapement, Frederick Rippon Dent's prismatic balance continuous auxiliary compensation type "B", diamond end-stone, free sprung blued steel helical balance spring with terminal curves.Signed on the dial.Dial diam. 102 mm.Dim. 19 x 18 x18 cm.

Dent, Chronometer Maker to the Queen, 33, Cockspur St. London, No. 29735, made circa 1885.Very fine and rare, Coromandel wood eight day going marine chronometer with power reserve indication and Dent's single staple auxiliary compensation balance.

C. Three body Coromandel wood box with sunk brass handles, glazed upper section with hinged lid. Brass bowl and gimballed suspension. D. Silvered with Roman numerals, subsidiary seconds and Up-and-Down scale. Gold "pear" hands. M. Of the best possible quality, spotted brass with main frame and sub-frame, cylindrical pillars, fusee with chain and maintaining power, Earnshaw type spring detent escapement, Dent's single staple auxiliary compensation balance with cylindrical weights, diamond end-stoe, free sprung polished steel helical balance spring with terminal curves.Signed on the dial.Dial diam. 125 mm.Dim. 23 x 20 x 20 cm.

Charles Frodsham, 84 Strand, London, circa 1880.Fine and rare gilt brass eight day going, giant timepiece carriage clock with chronometer escapement, power reserve indication and middle temperature error compensation.

C. Gilt bronze "Anglaise" glazed four sides and top.D. Satiné silvered with Roman numerals, subsidiary seconds and Up-and-Down scale. Blued steel "pear" hands. M. Brass, frosted and gilt rectangular with cylindrical pillars, fusee with chain and maintaining power, spotted gilt brass, Earnshaw type spring detent platform escapement, two-arm compensation balance with cylindrical poising weights, timing screws and Pool's middle temperature error compensation, helical blued steel balance spring, diamond endstone.Signed on dial and movement.Dim. 24,5 x 18 x 16,5 cm.

Charles Frodsham & Co., 84, Strand, London, AD.FMSZ No. 7326, with London hallmarks for 1887.Very fine and unusual silver deck-watch, with 54 hour power reserve indication and free sprung special balance spring in original fitted mahogany deck watch box.

C. Three body, massive, "bassine et filets", polished, marked "G. J. T." (George James Thickbroom). Hinged silver cuvette. D. Silvered with Roman numerals, outer minute ring, subsidiary seconds and Up-and-Down scale. Blued steel "pear" hands. M. 26''' frosted and gilt brass three-quarter plate with turned pillars, 13 jewels in screwed settings, fusee with chain and maintaining power, Earnshaw type spring detent escapement, cut bimetallic balance with gold timing screws, free sprung blued steel do-in-uno balance spring and diamond endstone.Signed on the dial and back plate.Diam. 69 mm.Box dim. 140 x 110 x 59 mm.

Patek Philippe & Cie., Genève, No. 41372, made for A. Barbero & Co., Roma, sold to General Zinoviefon September 27, 1873.Fine and rare 18K gold, hunting cased, keyless pocket chronometer, with Bulletin for the timing contest organised at the Observatory of Geneva on March 3, 1873.

C. Four body, massive, "bassine et filets", polished. Hinged gold cuvette. D. White enamel with Roman numerals and sunk subsidiary seconds. Blued steel "spade" hands. M. 21''', gilt brass, 15 jewels, gold wheel train, spring detent escapement, cut bimetallic balance, free sprung blued steel spherical balance spring.Signed on the cuvette both by Patek Philippe and the retailer.Diam. 55 mm.Accompanied by Extracts from the Archives.

Unsigned, Swiss, the tourbillon by Ernest Guinand, Locle, made for the Spanish Market, circa 1880.Fine and early 18K pink gold hunting-cased, pocket chronometer, with one minute tourbillon regulator.

C. Five body massive, "Bassine et filets", polished, made by R. Waldvogel. Hinged gold cuvette. D. Gold engine turned with cast varicoloured gold foliage decoration, Roman numerals and subsidiary seconds. Blued steel "fleurs de lys" hands. M. 19''' nickel plated, Geneva "fausses côtes" decoration, caliber in the form of conjoined initials, 12 jewels on the carriage, pivoted detent escapement with gold escape wheel, cut bimetallic balance, Breguet balance spring with index regulator. Ernest Guinad's three-arm polished steel carriage of the second type, driven by the third wheel.Diam. 53 mm.

Ulysse Nardin, Locle, Suisse, No. 8/5900, made in 1879.Very fine and rare, early, rosewood, 56 hour going marine chronometer with power reserve indicator and electrical contacts.

C. Three body rosewood box, with brass stringing and sunk brass handles, all the edges and corners protected by heavy brass inlay, the glazed upper section with hinged lid. Brass bowl and gimballed suspension. D. Silvered with Roman numerals, subsidiary seconds and Up-and-Down scale. Gold "spade" hands. M. Brass full plate with cylindrical pillars secured by screws, the back plate relieved for the barrel, fusee with chain and maintaining power, spring detent escapement visible through an aperturon the back plate, two-arm balance with cylindrical weights and timing screws, free sprung blued steel helical balance spring with terminal curves.Accompagnied by the Bulletin de Première Classe of the Observatory of Neuchâtel.Dial diam. 100 mm.Dim. 19 x 17,5 x 17,5 cm.

Ulysse Nardin, Locle, Swiss, Chronomètre,No. 20872, circa 1920.Fine silver, keyless pocket lever chronometer with40 hour power reserve indicator.

C. Four body, massive, "bassine", polished. Hinged silver cuvette. D. White enamel with Arabic numerals, sunk subsidiary seconds and Up-and-Down scale. Blued steel "spade" hands. M. 18''', rhodium plated, "fausses côtes" decoration, 18 jewels, straight line lever escapement, brass-invar Guillaume balance, blued steel balance spring with terminal curve and swan neck micrometric index.Signed on the dial, case and movement.Diam. 52 mm.

Ulysse Nardin, Locle, Swiss, Chronomètre,No. 120904, sold by Andreas Huber, Munchen-Berlin, to the German Navy, Service Number M. 5855,circa 1943.Fine silver, keyless pocket lever chronometer.

C. Four body, massive, "bassine et filets", polished, the back engraved with the Service Number. Hinged silver cuvette. D. White enamel with Roman numerals and sunk subsidiary seconds. Blued steel "spade" hands. M. 22''', frosted and gilt, 21 jewels, straight line lever escapement, brass-invar Guillaume balance, eight adjustments, blued steel balance spring with terminal curve and micrometric index.Signed on the dial, case and movement.Signed by the retailer on the cuvette.Diam. 59 mm.

Ulysse Nardin, Locle, Suisse, Sidereal Time, Chronometer, No. 122398, circa 1945.Fine stainless steel keyless deck lever chronometer with power reserve indication and dead seconds' electrical contacts.

C. Four body, massive, "bassine et filets", polished, the screwed back with milled border. Stainless steel clipped cuvette. D. White enamel with Roman numerals, sunk subsidiary seconds and Up-and-Down scale. Blued steel "spade" hands. M. 22''', frosted and gilt, 23 jewels, straight line lever escapement, brass-invar Guillaume balance, eight adjustments, blued steel balance spring with terminal curve and special micrometric index.Signed on the dial, case and movement.Diam. 64 mm.

Ulysse Nardin, Locle, Swiss, No. 29061,case No. 399993, entered in the registers in July 1939.Very fine and important 18K gold, keyless pocket chronometer with one minute tourbillon regulator.

C. Four body, "bassine", polished. Hinged gold cuvette. D. White enamel with Roman numerals and sunk subsidiary seconds. Blued steel Breguet hands. M. 19''', rhodium plated, "fausses côtes" decoration, Pellaton calibre, 19 jewels, lateral lever escapement, cut bimetallic balance, blued steel balance spring with terminal curve. One minute tourbillon regulator, the polished steel Pellaton type carriage with three equidistant arms, made by J. Golay.Signed on the dial, case and movement.Diam. 53 mm.