Timekeeper with 1 ComplicationJaques Girod, (Coppet) Genève, circa 1680.Fine and very rare pair-cased gilt metal single-hand watch with alarm and early balance spring.

C. Outer: two-body, leather-covered brass. Inner: gilt brass, two-body, "bassine", florally pierced and engraved band, polished back, turned pendant, loose ring. D. Gilt brass, champlevé Roman hour chapter on matte ground with inner quarter-hour ring, center with rotating alarm disc with Arabic numerals and blued steel fleur-de-lis single pointer. Blued steel "arrow" alarm setting hand. M. 38,5 mm, gilt full plate mounted to hinged dial plate, four vase pillars, fusee and chain, verge escapementwith plain three-arm steel balance and short 2 1/4-turn balance spring, symmetrical trefoil gilt cock with short foot secured by a screw, Tompion type regulator, ratchet wheel and click mainspring set-up, regular four-wheel train, steel alarm train driven from fixed barrel pierced and engraved with floral pattern, striking on a bell on both sides of a short oval cantilevered hammer.Signed on the back plate.Diam. 54 mm.

Timekeeper with 1 ComplicationMeyronne a Paris, circa 1690.Rare and fine silver single-hand "oignon" alarm watch.

C. Two-body, "oignon", square hinge, pierced for sound with a pattern of repeated circles. D. White enamel, Roman numerals on raised enamel cartouches, inner quarter-hour ring, center with gilt brass alarm disc with Arabic numerals with steel pointer indicating hours. Blued steel "arrow" hand. M. 45,6 mm, hinged, gilt full plate with Egyptian pillars, fusee and chain, verge escapement with brass balance and short balance spring, Louis XIV cock pierced and engraved with two cupids on a see-saw wih a quiver and a torch between, blued steel crescent-shaped plate applied above the cock with a scrolling pattern, Tompion type regulator, alarm with fixed engraved barrel and steel train, striking on a bell on both sides of short oval cantilever hammer.Signed on the blued steel plate applied on the back plate.Diam. 58 mm.

Timekeeper with 1 ComplicationJoh(an) Hen(rich) Bachoffen, Zürich, circa 1700.Fine and very rare gilt silver, pair-cased quarter-repeating watch.

C. Outer: two-body, "bassine" with square hinge, bezels pierced and engraved with scrolling foliage, small vignettes with animals, back chased with foliage, and scrolling surmounted by two exotic birds. Inner: two-body, "bassine", band pierced and engraved with foliage, polished back with small engraved rosette. D. Gilt silver, champlevé Roman numerals, inner half-hour ring with fleur-de-lis pointers, outer minute ring with five-minute Arabic markers in oval polished cartouches, center chased wih symmetrical scrolls. Blued steel "beetle and poker" hands. M. 39,7 mm, gilt brass, full plate with unusual lion-head pillars, fusee and chain, verge escapement, plain three-arm balance, flat balance spring, single-footed pierced and engraved cock with straight foot and long streamers, applied plate over the movement decorated en suite to the cock foot, worm-gear and wheel set-up, rack and pinion regulator with silver plate, repeating on a bell by depressing the pendant.Signed on dial and movement.Diam. 60 mm.

Timekeeper with 1 ComplicationMoses and the Ten CommandmentsDebeaufre, London, circa 1720.Very fine 22K gold pair-cased half quarter-repeating and à tact watch.

C. Outer: two-body, the back very finely repoussé, depicting Moses holding the tablets of The Ten Commandments, pierced and repoussé bezels with flowers and scrolling. Inner: two-body, "bassine", deep back, band pierced and engraved with inhabited foliage, mask at six o'clock, polished back with small engraved rosette in the center, silver dust cap. D. Gold, champlevé enamel Roman hour chapter, arched outer minute ring with five-minute Arabic markers. Blued steel "beetle and poker" hands. M. 32,mm, gilt brass full plate with octagonal baluster pillars, fusee and chain, verge escapement, plain three-arm brass balance, blued steel flat balance spring, silver cock with streamers, pierced and engraved with two mythical creatures among scrolling decoration, straight cut foot, early all-or-nothing repeating system with both racks under the dial, repeating on bell or à tact by depressing the pendant.Signed on the dial, back plate and the dust cap, the inner case stamped "AG".Diam. 51 mm.

Timekeeper with 1 ComplicationThe Soldier's WelcomeJaques Decour, London, circa 1740.Very fine 22K gold pair-cased quarter-repeating and à tact watch.

C. Outer: two-body, the back repoussé depicting welcoming of a soldier by two women, pierced and repoussé bezels with flowers and scrolling alternating with four vignettes - two depicting scenes from La Fontaine (1621-1691) and two with a man's and a lady's bust. Inner: two-body, "bassine", with deep back, band pierced and engraved with inhabited foliage, mask at six o'clock, polished back with small engraved rosette in the center, silver dust cap. D. Gold, champlevé Roman hour chapter, outer miute ring with five-minute Arabic markers, applied gold scrolling decoration at the center over blued steel plate. Blued steel "beetle and poker" hands. M. 37 mm, gilt brass full plate with turned baluster pillars, fusee and chain, verge escapement, plain three-arm brass balance, blued steel flat balance spring, silver cock with small streamers pierced and engraved with scrolling foliage, repeating on bell by depressing the pendant, small lever at 7 o'clock to change to tactile repeating.Signed on the dial, back plate and the dust cap.Diam. 54 mm.

Timekeeper with 2 ComplicationsChristianus Caroll, Köningsberg, circa 1660.Fine and very rare gilt and silvered bronze three-train, hour- and quarter-striking, large horizontal table clock in original leather fitted box.

C. Hexagonal, glazed on all sides with silvered oval frames, with silvered caryatides on the corners, molded borders, three silvered feet with winged womens' heads, hinged base with two apertures for bells engraved with semicircles and wild strawberries. D. Gilt brass, chased and engraved with tulips and other flowers, applied silver chapter ring with champlevé Roman numerals and outer Arabic minute divisions, pin-hole between 2 and 3 o'clock for setting the striking. Very elaborate silver handsM. Hexagonal, gilt brass, baluster pillars, three-train, fusee and chain, verge escapement with plain three-arm steel balance and later short 1 1/2-turn balance spring, irregular pierced and engraved cock with large single foot, ratchet wheel and click set-up with large gilt brass click bridge decorated en suite, striking with fixed florally engraved barrels, pierced and engraved locking gate, striking on two hammers on two bells, engraved count wheel set on the back plate, silver quarter-strikng plate also set on the back plate.Signed on the movement.Diam. 18 cm diagonally.

Timekeeper with 1 ComplicationCaspar Pfeninger a Zurich, circa 1750.Very fine and very rare mahogany bracket day and night clock with original bracket.

C. Mahogany veneered, ebonized base, corner columns and center panel inlaid with fruitwood, side panels with hardened bronze centers, hinged mahogany back door, ebonized molded cornice set with beaded gilt brass wire, the top, which opens to allow access to the lamp, with a gilt brass urn which serves as a conduit for smoke and heat, molded mahogany crest, gilt hinged bezel. Inlaid matching bracket. D. White enamel, Roman numerals, outer minute dot divisions with five-minute Arabic markers. Gilt"Louis XV" hands, segment of the night dial with cut-out Roman numerals in a rotating silvered ring in a glazed aperture above. M. Rectangular, brass full plate, cylindrical columns, large going barrel, modification of anchor escapement with two pins for pallets, short pendulum with small brass bob, knife-edge suspension, top with guides for the oil lamp.Signed on the dial.Dim. Height 39 cm, width 21 cm.

Precision Timekeeper with 2 Complications and ThermometerLe Paute a Paris, cabinet by Jean-Ferdinand-Joseph Schwerdfeger, circa 1775.Very fine and extremely rare month-going weight-driven Valet Astronomique, with long case regulator, Huygens endless rope-winding, Berthoud offset compound pendulum, center-seconds, equation of time, annual calendar and thermometer.

C. Mahogany, glazed on the front, rectangular cresting above molded cornice supported by wooden corbels, paneled veneered plinth with molded base. D. By Barbezat, white enamel, Roman numerals, outer minute dot divisions with five-minute Arabic markers, the center with rotating equation dial with red Arabic numerals. Annual calendar in aperture above 12 o'clock. "Louis XV" gilt brass hands. M. Circular brass movement, 17,5 cm, contained in a brass cylinder, cylindrical pillars with conical base,eight-driven, pin-wheel escapement with pins on one side of the escape wheel, heavy asymmetrical brass-steel Berthoud compound compensation pendulum with thermometer scale, spring suspension, Huygens endless rope winding, 146-tooth annular wheel driven by six-leaf pinion of 30-tooth star wheel jumping twice a day, equation cam set on the annular wheel, equation arm connected to a rack meshing with a wheel set underneath the equation dial which is spring loaded via a small cord and long steel sprng.Signed on the dial.Dim. 185 cm, base width 44 cm.

Precision Timekeeper with 1 ComplicationRobin à Paris, circa 1780.Very fine and rare gilt brass three month-going, double barrel center-seconds mantle regulator with remontoire d'égalité.

C. Gilt brass, glazed on all four sides, gilt brass hanging curtain below the dial, applied gilt brass leaf motives in the top corners, fluted corners with laurel-leaf pattern. D. White enamel, Roman numerals, outer minute ring with large Arabic five-minute/seconds divisions. Elaborate gilt brass hands. M. Irregular, circular at the top, brass, full plate, two going barrels meshing with the same first wheel pinion, dead-beat Graham type escapement driven by endless-rope remontoire d'égalité, penulum with steel rod and brass bob, knife-edge suspension, micrometric beat adjustment on the crutch.Signed on dial and movement.Dim. 38 mm.

Precision Timekeeper with 5 ComplicationsRobin à Paris, circa 1795Very fine and extremely rare 8 day-going skeletonized mantle regulator with Gregorian and Revolutionary calendars.

C. Rectangular black marble base with canted corners, gilt brass round feet, two gilt brass brackets supporting the movement. D. White enamel ring with Roman hour chapter, outer minute ring with 15 minute Arabic markers, ormolu bezel. Blued steel Breguet hands with hollow tips. Five subsidiary calendar dials below; the two to the right and the one in the middle for Gregorian date, days of the week with corresponding planets, the two to the left for Revolutionary decades (date and months). M. Y-saped frame of heavy brass, four-wheel train, pin-wheel escapement, heavy brass-steel gridiron compensation pendulum, brass bob, spring suspension.Signed on the dial.Dim. Height 29 cm, base width 24 cm.

Timekeeper with 5 ComplicationsAttributed to Jaquet-Droz, Geneva, circa 1780.Extremely rare and very fine gilt brass and enamel, two singing bird hanging cage with a center-seconds clock beneath, 12-stream fountain, playing four tunes on demand or changing automatically on the hour.

C. Gilt brass cage, square base with canted corners, each side with a finely painted on enamel medallions with flower vase, bay-leaf ormolu frame with applied ormolu flower stems, light brown background, one medallion hinged for the winding aperture, panel to the right with activating pull cord and lever for singing/silent change, canted corners with gilt brass vase with flowers and loose hanging straight handles, center architectural fence panels with tops pierced and engraved with flowers andtylized foliage, gilt wire top centered by gilt flower bud with hinged ring loop. Inside in the center an animated fountain with 12 twisted glass streams stemming from a gilt decorated bowl with floral capital, flanked by two nightingales sitting on both sides of gilt bar, each turning around, with animated wings, beak and tail. Base fitted with the dial, reeded bezel, foliate decoration in the corners around the ball and paw feet. D. White enamel, radial Roman numerals, outer minute divisions wth five-minute/seconds Arabic markers, subsidiary regulating dial. Gilt brass "fleur-de-lis" hands.Singing bird movement: brass, two tier, fusee and chain, large barrel for long duration, four-arm fly governor with worm and wheel transmission driving pinned cylinder with 16 levers, 12 for same number of pipes, 4 for bellows and birds animations, birds playing in duets, singing changes automatically.Clock movement: brass, rectangular full plate with cylindrical pillars secured by pins, going barrel, verge escapement, plain three-arm brass balance with blued steel balance spring, two-footed skeletonized cock with four spokes, rack and pinion regulator.Dim. Height 52 cm, width 28 cm.

Timekeeper with 4 ComplicationsTavernier à Paris, No. 579, circa 1770.Very fine and unusual 18K gold, double-face center-seconds astronomical watch with manual perpetual calendar, phases of the moon, equation and day-length tables with mnemonic year indications.

C. Two-body, "Louis XV", glazed on both sides, the bezel on the calendar side engraved with the length of days table, the other with equation table, pendant set with a large diamond. D. On the front, white enamel dial with radial Arabic chapters, outer minute ring with five-minute Arabic numerals. Gold "beetle and poker" hands. On the back, gilt silver calendar dial decorated with straight-line pattern, the center with days of the week chapter, on top an aperture for the phases and age of the mon, at 2 o'clock aperture for the year with indications until 9999, at 4 o'clock aperture for months with the number of corresponding days, at 6 o'clock regulating sector, at 8 o'clock aperture for days of the month, at 9 o'clock division of the day into eight parts, with the pointer to indicate when the calendar must be reset. M. 35 mm ø, hinged gilt brass full plate with cylindrical pillars, fusee and chain, cylinder escapement, brass escape wheel, plain three-arm steel balance, flat balance sping, continental cock.Signed on the edge of the dial plate and the dial.Diam. 45 mm.

TimekeeperLepine Invenit et Fecit à Paris, No. 6131,circa 1805.Fine and rare 20K rose gold pocket watch with virguleescapement.

C. Two-body, "Directoire", No. 946 by Joly, polished, reeded bezels, concealed hinge, gilt brass hinged and spring-loaded cuvette mounted to the movement ring. D. White enamel, gold Breguet numerals, number "1" in an oval gold frame, gold outer minute divisions. Gold Breguet hands. Counter-enamel signed Borel. M. Gilt brass, Lepine caliber with standing barrel, virgule escapement, gold three-arm jeweled balance, blued steel balance spring.Signed on the dial and cuvette, case stamped with French marks used between 1798 and 1808 and JLJ (Joly) in lozenge.Diam. 56 mm.

Precision Timekeeper with 5 ComplicationsAttributable to Lepaute, Paris, circa 1795.Very fine and extremely rare 8 day-going mahogany center-seconds mantle regulator with decimal and duo-decimal chapters and Revolutionary and Gregorian calendars, striking the hours and half hours.

C. Mahogany, glazed on both sides, the front and the back, rectangular removable cresting above molded cornice supported by mahogany corbels, the whole also removable revealing a pin releasing the sliding back panel lock, rectangular base with molded top, ivory knob on the back panel, gilt brass chiseled bezel decorated with repeated acanthus-leaf pattern, square mahogany feet. D. White enamel, listing from outermost to the center: Revolutionary months and decades, Gregorian months, Revolutionarminutes and hours, duo-decimal minutes and hours, the center repeats the revolutionary months, all revolutionary indications in black, Gregorian and duo-decimal in red, all numerals Arabic. Elaborate gilt brass duo-decimal hands, blued steel revolutionary hands with, on the hour hand a Phrygian cap over a pike, date aperture behind the bezel, two winding apertures. M. Round, brass full plate, cylindrical pillars, going barrels, pin wheel dead beat escapement, steel-brass gridiron pendulum, knif-edge suspension set on a brass bracket fixed to the top panel of the case, micrometric adjustment on the crutch, striking on a bell, count wheel on the back plate.Dim. Height 5,6 cm, width 2,8 cm.

Antoine-Louis Breguet (1776-1868)Echappement libre à ancre d'une seule levée.

C. Important manuscript probably dictated by his father, the celebrated Abraham-Louis Breguet.Description of a detached escapement with a single pallet only.3 pp. in-f°.

Axel de Fersen - Le Comte de, Général Major au service de la Suède (1755-1810).Highly important letter sent to Breguet on March 13, 1794 about a self-winding watch "de celles qui se remontent toutes seules, que vous avez faite je crois en 1784 ou 1785 pour la feu reine" (made in 1784 or 1785 for the late Queen Marie-Antoinette) and obviously given to him.2 letters, 3 pp. 1 drawing.

C. Fersen asks Breguet if it is possible to replace the watch's quarter-repeating perpetual movement with a minute-repeating one without the self-winding mechanism. A drawing of the case with its measurements is enclosed. He also inquires about the whereabouts of the watch worn by the "unfortunate" queen.Together with a second letter from Brussels, dated September 14, 1794, in which Fersen asks Breguet where the instructions must be sent and the best way to forward the watch.

Horloge Marine à tourbillon, dont l'échappement est à remontoir indépendant et à force constante et Montre à Longitude à double secondes, à équation et à quantième annuel, exécutée par M. Breguet pour M. de Sommariva.

C. 3 pp. published by Breguet for the presentation in his shop of this highly important clock, which was destroyed in the fire of his mansion near the lake of Como (Italy).On the base of the clock was engraved: "Horloge et montre marines où sont deux régulateurs différents; l'un seul en usage depuis plus d'un demi-siècle, mais perfectionné ici, pour le renouvellement de l'huile, par un procédé ignoré jusqu'à ce jour, l'autre d'invention nouvelle, à tourbillon, force constante et spiral s'ouvrant concentriquement."This piece by Breguet, ordered by M. de Sommariva, executed with no limit to time, to expenditure, to volume and to composition, was begun in 1802, and finished in 1813. Effort of the artist to make this machine a monument of the state of horology at the beginning of the 19th siècle, adjoining to the purity of the principles, the greatest luxury of execution."

Anisson Duperon (Director of the Imprimerie Royale)Letter sent to Boulanger, agent du Citoyen Breguet, quai de l'Horloge à Paris.

C. This letter was supposed to be forwarded to Breguet by M. François de Journiac Saint-Méard.

Letters sent from Paris to Breguet on 9 Pluviôse year IV (January 29, 1796) and 14 Ventôse year IV (March 14, 1796).

C. Ruined by the French Revolution, General Balbani is not able to find the money he owes Breguet and asks him to find someone to buy his own watch.Two letters.

Ste Croix, Capitaine de Frégate, Garde du Gouvernement, Corps de Marines commandant le premier Equipage et le port de Wimereux.

C. Letters sent from Berlin and Wismereux to Breguet on 29 Vendémiaire year 13 (October 21, 1804), 3 Germinal year 13 (March 24, 1805) and November 17, 1806.Concerning the political and military situation and different watches commissioned from Breguet.Three letters.