Breguet No. 4861, Horloge Marine à deux barillets, petit modèle, sold to Sa Majesté Louis Philippe on31 October 1839, for 2260 Francs.Rare and unusual Marine chronometer of Royal provenance with double gimbals.

C. Double body with visible mortise and tenon joints, a massive brass swan-neck handle with lion paw brackets on the top of the box. Double brass gimbals, the outer with conventional locking, the inner locking lever now lacking. D. Frosted and silvered with small eccentric Roman chapter for hours with outer Arabic minute ring, symmetrical subsidiary seconds below. Blued-steel "spade" hands. M. Brass half plate, spotted finished with two barrels separately wound, the springs signed by Vincent anddated 1829, navette-shaped detachable platform with spring detent escapement, bimetallic two-arm balance with poising and timing screws, free-sprung polished helical balance spring with adjustable stud.Signed and numbered on the dial.Accompanied by Breguet Certificate No. 4120.Dial diam. 90 mm.

Breguet Neveu & Cie. No. 4988, Montre Garde Temps, sold to Comte de Gourieff on June 17, 1841, for 1400 Francs.Fine silver pocket chronometer.

C. Three body, massive, "forme quatre baguettes" by Amy Joly, No. 1075, engine-turned. Detachable gilt brass cuvette. D. White enamel by Droz (signed on the enamel backing) with Roman numerals and subsidiary seconds on chapter "XII". Blued steel Breguet hands. M. 21''', gilt brass full plate with cylindrical pillars, fusee with chain and maintaining power, the back plate relieved for the barrel, spring detent escapement, two-arm compensation balance with poising weights and timing screws, diamonend-stone, free sprung blued steel helical balance spring with terminal curves.Signed on the dial, cuvette and movement.Diam. 59 mm.

Charles Oudin à Paris, circa 1830.Fine and very rare small marine chronometer with a highly unusual escapement.

C. Double body mahogany box with slide on the lid over the observation aperture. Brass gimbals with a lead-weighted bowl. D. Frosted silvered, regulator type with small eccentric Roman chapter for hours, symmetrical subsidiary seconds below and outer Arabic minute ring on the border of the bezel. Blued-steel Breguet hands. M. Frosted and gilt brass full plate with steel conical pillars secured by nuts with washers in the manner of Louis Berthoud, the fusee with maintaining power, resting-wheel vrge escapement with steel crown wheel and steel pallets on the balance staff, two-arm compensation balance with poising and timing screws, free-sprung blued-steel helical balance spring.Signed on the dial.Dial diam. 66 mm.

Frédéric Houriet, No. 79, Swiss, completed inMarch 1828.Very fine and rare silver pocket chronometer in original fitted box and accompanied by an extra crystal and a manuscript copy, made in Geneva on July 5, 1848, of the Description du Chronomètre No. 79, fait par F. Houriet du Locle - Mars 1828.

C. Three body, massive, "forme quatre baguettes", polished. Hinged gilt brass cuvette engraved with technical details. D. White enamel with Roman numerals, outer minute ring and sunk subsidiary seconds. Blued steel Breguet hands. M. 22''', frosted and gilt, three-quarter plate, with cylindrical pillars secured by screws, the back plate indented for the barrel secured by a bridge, the fusee with chain and maintaining power, 13 jewels, spring detent escapement, two-arm compensation balance with twwedged weights and timing screws, beating 21600 per hour, free sprung blued steel spherical balance spring.Numbered on the cuvette.Diam. 62 mm.

Le Paute & Fils, Horlogers du Roi, Invenit et Fecit, No. 17-7481, circa 1830.Very fine gilt brass month going, hour and half hour striking, centre second mantel regulator with remontoire, annual calendar and equation of time.

C. Rectangular glazed four faces and top, the face with foliate spandrels, engine-turned bezel, branches of laurel and ribbon knot below the dial, glass panel borders, cornice and moulded base with acanthus leaf decoration. D. White enamel with Roman numerals, outer minute ring and calendar aperture. Gilt brass "sun" hands for mean time, blued steel hands for equation and centre seconds. M. Brass rectangular with cylindrical pillars, going barrels on both the going and the striking trains, Lepaue pin-wheel escapement, the 5 second remontoire fitted on the back plate. Half-second beating gridiron pendulum with knife edge suspension. Striking on a bell with count wheel on the back plate. Equation work beneath the dial on the front plate. Winding holes concealed beneath the bezel.Signed on the dial and back plate.Dim. 47 x 28 18 cm.

Louis Berthoud, Paris, circa 1800.Very fine mahogany 15 going, centre seconds, long case regulator with unusual Fast/Slow precision adjustment

C. Rectangular with glazed door and side panels, ogee pediment with dentilled frieze. D. White enamel with Roman numerals and outer Arabic minutes and seconds rings. Gilt brass interlaced hands. M. Weight driven brass rectangular with cylindrical pillars, Graham escapement with micrometric adjustment fitted on the back plate, second beating gridiron pendulum with knife edge suspension and highly unusual subsidiary Fast-Slow precision adjustment.Signed on the dial.Dim. 195 x 53 x 28 cm.

Louis Berthoud, Horloger de la Marine, circa 1800.Very fine eight day going mahogany hour and half hour striking, centre seconds mantel regulator with special escapement.

C. Rectangular mahogany, glazed four sides with triangular pediment, flat columns on the face, surmounted by gilt bronze Egyptian figures. D. White enamel with Roman numerals and outer Arabic minutes and seconds rings. Blued steel Breguet hands. M. Brass circular with turned pillars secured by pins, going barrel on both the going and the striking trains, pin-wheel escapement à coups perdus, allowing to show the dead centre seconds with a half seconds beating pendulum. Half seconds gridiron penduum with knife edge suspension.Dim. 46 x 29 x 18 mm.

BERTHOUD (Louis).Entretiens sur l'horlogerie à l'usage de la Marine.

Paris, 1812.8 vo, 127 pp.Rebound in calf and marbled boards

No. 2577, construite par Louis Berthoud, Horloger de la Marine.Montre demi-marine, répétition ordinaire, échappement de Monsieur Raymond, Emboitagede Monsieur Béliard. Finie en blanc en Pluviôse et Ventôse an XIII (Février - Mars 1805). Le 15 Germinal an XIII (15 Avril 1805) fait marcher avant la dorure pour être emportée à Paris et dorée. Fait refaire l'échappement en Juin 1808. Sold on October 28, 1809 to Monsieur de Bougainville pour Monsieur son fils.Extremely fine and unique 18K gold quarter repeating pocket chronometer, gimballed in original mahogany box.

C. Three body massive "à double fond" made by Joly (Master mark), typical of Louis Berthoud's pocket "montres marines", polished with fixed cuvette and concealed hinges. D. White enamel by Lucard (signed on the enamel backing) with Breguet numerals and subsidiary seconds. Blued-steel Breguet hands.M. Frosted and gilt full plate with brass cylindrical pillars secured by pins, fusee with chain, maintaining power, typical Louis Berthoud type pivoted detent escapement with three-arm compensation balance and free sprung cylindrical balance spring.Signed on the dial, dial plate and back plate.Diam. 61 mm.

Louis Berthoud No. 2461-53, sold to M. le Général Cafarelli, Préfet Maritime de Brest, on 16 MessidorAn XI (5 July 1803), for 70 Louis.Early silver pocket chronometer in a three body mahogany deck watch box with brass fittings.

C. Three body massive "à double fond" made by Joly (Master mark), typical of Louis Berthoud's for pocket "montres marines", polished with fixed cuvette and concealed hinges. D. White enamel by Lucard (signed on the enamel backing) with Roman numerals and subsidiary seconds. Blued-steel Breguet hands.M. Frosted and gilt full plate with brass cylindrical pillars secured by pins, fusee with chain, maintaining power, typical Louis Berthoud type pivoted detent escapement with three-arm compensation balance and free sprung conical balance spring.Signed on the dial, dial plate and back plate.Diam. 68 mm.

Berthoud Frères, No. 215, circa 1818.Rare and important marine chronometer en forme de tabatière made in Louis Berthoud's workshop, after his death, under the direction of Henri Motel.

C. Double body mahogany box with slide on the lid over the glazed observation aperture. Brass gimball with a ladded bowl lined with velvet. Brass case en forme de tabatière. D. Silvered regulator type, with small Roman chapter for hours, subsidiary seconds below, outer Arabic minute ring on the border of the bezel. Blued steel Breguet hands. M. Frosted and gilt, full plate, fully jeweled, with conical pillars secured by nuts with washers. Fusee with chain, maintaining power, Louis Berthoud typeivoted detent escapement, three-arm compensation balance, with three wedged weights and timing screws, blued steel conical balance spring.Signed on the dial, the back plate and the dial rim.Dial diam. 80 mm.

Auguste Berthoud, No. 178, circa 1840.Fine and probably unique mahogany experimental marine chronometer en forme de tabatière.

C. Double body mahogany box with slide on the lid over the observation aperture. Brass gimball with a ladded bowl. Brass case en forme de tabatière, similar to that used by Louis Berthoud for his later chronometer. D. Silvered regulator type, similar to that used by Louis Berthoud, with small Roman chapter ring for hours, subsidiary seconds below, outer Arabic minute ring on the border of the bezel. Blued steel Breguet hands. M. Brass, full plate with steel conical pillars secured by nuts with wshers. Fusee with chain, maintaining power, spring detent escapement, three-arm compensation balance, with three wedged weights and timing screws, blued steel helical balance spring.Signed on the dial.Dial diam. 80 mm.Dim. 14 x 16 x 16 cm.

Lecocq, Elève du Gouvernement, Berthoud Professeur, circa 1840.Fine fine and one of the extremely rare examples of mahogany two day going marine chronometer, made under the control of Charles-Auguste Berthoud.

C. Double body solid mahogany, with sliding observation lid, brass bowl and circular gimballed suspension. D. Silvered regulator type, with small Roman chapter for hours, subsidiary seconds below, outer Arabic minute ring on the border of the bezel. Blued steel Breguet hands. M. Brass full plate with cylindrical pillars secured by pins, fusee with chain and maintaining power, spring detent escapement, three-arm compensation balance with trapezoidal poising weights and timing screws. Free sprunglued steel helical balance spring.Signed on the dial.Dial diam. 80 mm.Dim. 15,5 x 16,5 x 16,5 cm.

Dumas, Elève du Gouvernement, No. 21, circa 1840.Very fine and one of the extremely rare example of silver and gold pocket chronometer made under the control of Henri Motel with original ratchet key.

C. Four body, forme quatre baguettes, by Jules Perot (Master mark), with gold rims, engine turned back and ribbed band. Hinged silver cuvette. D. White enamel with Roman numerals and subsidiary seconds. Blued steel Breguet hands. M. 22''' gilt brass bar calibre with going barrel, Louis Berthoud type pivoted detent escapement, cut bimetallic two-arm compensation balance with poising and timing screws, free sprung blued steel helical balance spring with terminal curves.Signed on the cuvette.Diam. 58 mm.

Dumas, Elève du Gouvernement, No. 24, circa 1840.Very fine and one of the extremely rare examples of mahogany, marine chronometer made under the control of Henri Motel.

C. Double body mahogany box with slide on the lid over the observation aperture. Brass bowl and gimballed suspension, locking bolt on the edge.D. Silvered with Roman numerals and subsidiary seconds. Blued steel Breguet hands. M. Brass, "fausses côtes" finished, Motel calibre the fusee with maintaining power and the barrel secured by a single bridge, the escapement mounted on a separated plate, Louis Berthoud type pivoted detent escapement, four-arm compensation balance with four weights, poising and timing screws, blued steel conical balance spring.Signed on the dial and movement.Dial diam. 82 mm.Dim. 14 x 16 x 16 cm.

Dumas, No. 27, circa 1840.Very fine mahogany, 49 hour going marine chronometer with power reserve indicator. One of the earliest ever made by Dumas with his own calibre.

C. Three body mahogany with external brass handles, glazed upper section with hinged lid. Brass bowl and gimballed suspension. D. Silvered dial with Roman numerals, subsidiary seconds and Up-and-Down scale. Blued steel Breguet hands. M. Brass spotted finished full plate with conical pillars secured by screws, fusee with chain and maintaining power, Earnshaw type spring detent escapement, four-arm compensation balance with wedged weights and timing screws. Free sprung blued steel conical balancepring.Signed on the dial and back plate.Dial diam. 82 mm.Dim. 16 x 16 x 16,5 cm.

O. Dumas, Successeur de Gannery, No. 126, circa 1851.Very fine and rare magogany eight day going marine chronometer.

C. Three body mahogany with external brass handles, glazed upper section, the hinged lid with brass corners. Brass bowl and gimballed suspension.D. Frosted and silvered with Roman numerals, subsidiary seconds and Up-and-Down scale. Blued steel Breguet hands. M. Brass three-quarter plate with with main frame and sub-frame, conical pillars, fusee with chain and maintaining power, spring detent escapement, entirely fitted including the balance on a spotted finished platform, two-arm compensation balance with cylindrical weights and timing screws, free sprung blued steel helical balance spring with terminal curves.Signed on the dial and back plate.Dial diam. 110 mmDim. 18 x 17,5 x 17,5 cm.

Dumas, Successeur de Gannery, à St. Nicolas Près Dieppe, No. 442, circa 1860.Fine 49 hour going mahogany marine chronometer with power reserve indicator.

C. Three body mahogany box with external handles, glazed upper section the hinged lid with brass corners. Brass bowl and gimballed suspension.D. Silvered with Roman numerals, outer minute ring subsidiary seconds and Up-and-Down sector. Gilt brass Breguet hands. M. Brass full plate with cylindrical pillars secured by screws, fusee with maintaining power, Earnshaw type spring detent escapement, two-arm compensation balance with cylindrical weights and timing screws, free sprung blued steel helical balance spring.Signed on the dial and mahogany box.Dial diam. 80 mm.Dim. 16,5 x 16,5 x 17,5 cm.

(Henri Motel), Horloger de la Marine, No. 262, sold to Dépôt de la Marine on June 1, 1849, for 2400 Francs. The compensation balance with auxiliary compensation and blued steel helical balance spring with terminal curves by H. Charbonnier, from the Ecole Impériale d'Horlogerie de Cluse, completed on June 10, 1868.

C. Three body mahogany box with external handles, the glazed upper section with hinged lid. Brass bowl and gimballed suspension, locking bolt on the edge. D. Silvered with Roman numerals and subsidiary seconds. Blued steel Breguet hands. M. Brass, spotted finished, Motel calibre the fusee with maintaining power and the barrel secured by a single bridge, mainspring by Bourquin dated 1846, the escapement mounted on a separated plate, Louis Berthoud type pivoted escapement, two-arm compensation balnce with a variant of Pool auxiliary compensation, two cylindrical poising weights and timing screws, blued steel helical balance spring with terminal curves.Signed on the dial and movement.Dial diam. 82 mm.Dim. 17 x 16 x 15 cm.

Winnerl, France, No. 150, circa 1840.Very fine small, mahogany, 49 hour going marine chronometer with power reserve indicator

C. Double body solid mahogany, with sliding observation lid and external brass handles, brass bowl and circular gimballed suspension. D. Silvered with Roman numerals, subsidiary seconds and Up-and-Down scale. M. Spotted 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 cylindrical weights and timing screws. Free sprung blued steel helical balancespring with terminal curves.Signed on the dial.Dial diam. 75 mm.Dim. 14,5 x 14,5 x 14 cm.