Jacques-Frédéric Houriet, No. 61, made for Berthoud Frères, circa 1820. Highly important, exquisitely made and very rare 18K rose gold pocket chronometer with one-minute tourbillon regulator, spring detent chronometer escapement, free-sprung gold spherical balance spring, regulator dial, and Réaumur thermometer.

C. Four-body, massive, ?bassine et filets?, engine-turned, gold hinged cuvette with winding aperture, inscribed with details of the movement. D. White enamel, small radial Roman hour chapter at 10 o?clock, central minutes with outer divisions and five-minute Arabic markers, Réaumur thermometer sector at 6, subsidiary seconds at 2 o?clock. M. 50 mm (22'''), frosted gilt U-shaped plate, jeweled to the center, fusee and chain with Harrison?s maintaining power, Earnshaw type spring detent escapement with gold escape wheel, 2-arm cut bimetallic compensation balance with Earnshaw type gilt wedge temperature compensation weights, rim calibrated for temperature adjustment, polished steel mean temperature screws, gold free-sprung spherical balance spring, contained within a two-arm steel tourbillon carriage.Punched with Houriet?s mark ?FH? on the pillar plate under the dial, the cuvette signed Berthoud Frères.Diam. 60 mm.

Jacques-Frédéric Houriet, No. 90, circa 1825. Very fine and rare silver pocket chronometer with Earnshaw type spring detent escapement and Réaumur thermometer.

C. Three-body, massive, by ?M.F.?, ?bassine et filets?, polished. Hinged gilt brass cuvette engraved with technical details. D. White enamel with radial Roman numerals, outer minute ring, temperature sector at 12, subsidiary seconds. Blued steel Breguet hands. M. 53.4 mm, frosted gilt, three-quarter plate, with cylindrical pillars secured by screws, the back plate recessed for the barrel secured by a bridge, the fusee with chain and Harrison?s maintaining power, gold train, 16 jewels, Earnshaw-type spring detent escapement, two-arm compensation balance with two wedged sliding weights, the rim with graduation for easy temperature adjustment, two gold timing screws, 21,600 beats per hour, ?later? free-sprung blued-steel helical balance spring.Numbered and punched with Houriet?s mark ?FH? on the pillar plate under the dial.Diam. 62 mm.

James Calame-Robert, Chaux-de-Fonds, No. 94209, circa 1870. Extremely rare and fine 18K gold, hunting-cased pocket chronometer with one-minute tourbillon regulator and date.

C. Five-body, massive, engine-turned covers, gold hinged cuvette. D. White enamel, radial Roman numerals, outer minute divisions with five-minute Arabic markers, subsidiary date at 12, sunk subsidiary seconds. Blued-steel ?spade? hands. M. 47 mm (21'''), frosted gilt, 16 jewels, reversed fusee with Harrison?s maintaining power and chain with five-turn Geneva stop-work, three-arm equidistant polished steel carriage with lateral counterpoised lever escapement, cut-bimetallic compensation balance with Breguet balance spring.Dial and movement signed, case and movement with the same serial number.Diam. 59 mm.

Ulysse Nardin, Locle, Suisse, No. 122113, case No. 610587, carriage by James @C. Pellaton, April 1942. Very fine and important, 18K gold, keyless pocket chronometer with one-minute tourbillon.

C. four body, 'bassine', polished. Hinged gold cuvette. D. White enamel with radial Roman numerals and sunk subsidiary seconds. Blued steel Breguet hands. M. 19''', rhodium-plated, ?fausses côtes? decoration, Pellaton caliber, 19 jewels, lateral lever escapement, cut bimetallic balance, blued steel balance spring with terminal curve. One minute tourbillon regulator with lateral lever escapement, cut bimetallic compensation balance with gold temperature screws, Breguet balance spring with outer terminal curve, the polished steel carriage with three equidistant arms made by J. Pellaton.Dial, case and movement signed.Diam. 53 mm.

?Attributes of Love? Attributed to Piguet & Capt, Genève, circa 1805. Very fine and rare 18K gold and painted on enamel nécessaire with scent bottle, fitted with concealed watch. In original fitted leather box, with old manuscript attesting to its provenance from the Chinese Emperor?s Summer Palace.

C. Each side made up of three painted on enamel panels, the center ones depicting two putti, one holding a love torch, against a dark green background, the other side depicting a mother holding a baby, gold and azure enamel frames, the whole against black enamel, the top forming the cover decorated with courting doves, musical instruments and Cupid?s attributes on the reverse, against black enamel, the lower spring-loaded panel with courting doves and a flower basket opening to reveal the watch, edges decorated with yellow enamel with translucent imperial blue enamel leaves and repeated engraved pattern. The hinged top reveals the nécessaire compartment containing a gold scent bottle with gold stopper, gold ear-spoon, pencil and watch key. The top decorated with a bouquet of flowers, azure stripe background. D. White enamel, radial Roman numerals, outer minute divisions, winding aperture at 2 o?clock. Gold ?spear? hands. M. 20 mm. (9'''), hinged, frosted gilt full-plate with cylindricl pillars, fusee and chain, verge escapement brass balance with flat balance spring, continental cock.Dim. 91 x 28 x 13 mm.

?Souvenir? Attributed to Piguet & Capt, Genève, circa 1802. Extremely fine and rare 18K gold and painted on enamel carnet fitted with concealed watch, printed calendar notebook for 1802 with a pencil, in a leather fitted box.

C. Four-body, slender and tapered, the front with a central panel finely painted with two young ladies holding flower garlands, one pricking her finger on Cupid?s arrow, below a hinged champlevé enamel panel decorated with two doves, opening to reveal the watch, the hinged top cover decorated en suite with doves in a flower basket,opening to a compartment containing a pencil and a small calendar/notebook in red morocco, the cover tooled with the date ?1802?, the reverse with a central painted on enamel panel depicting a swooning knight in armor, with his lady behind him and doves below, the top decorated similarly to the other side with the word ?Souvenir? in champlevé enamel below doves building a nest, both sides bordered by green champlevé enamel in a gold leaf pattern, champlevé enamel edges. D. Black, white, and blue champlevé enamel, designed as a clock with a flower urn at the top, center with Breguet numerals for the hour chapter, outer minute divisions. Small blued steel spadhands. M. Rectangular, 25 x 10 mm, hinged, gilt brass, fixed barrel, cylinder escapement, three-arm brass balance with flat balance spring.Dim. 79 x 35 x 9 mm.

?The Peony? Attributed to Piguet et Meylan, Geneva, made for the Chinese Emperor, circa 1820. Magnificent, extremely rare, large, 20K gold and enamel, pearl-set, half skeletonized, quarter-repeating peony form watch with ruby duplex escapement.

C. Triple-body, shaped, the back realistically formed and exquisitely painted as a peony with half pearl-set petals, the stem and leaves of green translucent enamel over engine-turning set with half pearls, the band with Nile green and blue champlevé enameled decoration, also set with half pearls, blue and pink champlevé enamel and pearl-set bezel, gold hinged and glazed cuvette. D. White enamel with radial Roman numerals, secured by a screw, outer minute track with Arabic 15 minutes, sunk subsidiary seconds. Blued-steel ?scotties? hands. M. 53 mm (23'''), partially skeletonized, polished and blued steel, hanging barrel, double wheel ruby duplex escapement, plain steel three-arm balance, flat balance spring, polished steel strike work visible on back plate, repeating on gongs through activating lever in the band.Dim. 92 x 65 mm.

?Cross Beat Monstrance Clock? Casper II Buschmann, Augsburg, circa 1590. Highly important ebony, gilt brass, enamel and lapis lazuli astronomical, hour striking, pre-balance spring, single-hand clock with cross-beat escapement, days of the week, date, manual perpetual calendar, and phases and age of the moon.

C. Designed as a monstrance, ebony on gilt brass feet, gilt brass panels to the sides and the back finely pierced and engraved with scrolling foliage, the back hinged, molded base with a drawer for the key with a handle in the form of a gilt bronze figure of a king with a scepter in his right hand for indication of day of week, frame for the days of the week dial with lapis lazuli decoration on each side, above the main dial within a molded frame and columns on each side, four gilt brass finials supported by lapis lazuli brackets, domed top with lapis lazuli brackets on each side and four finely pierced and engraved gilt brass panels, surmounted by a gilt bronze statue of a woman in classical dress holding a mirror. D. Mounted on rectangular gilt brass plate engraved with floral motifs, applied brass ring with radial Roman numerals and fleur-de-lis half-hour divisions, inner silver 30-day date ring with radial Arabic numerals with ?Z? for numeral ?2?, innermost phases of the moon in acircular aperture and its age in a sector aperture, outermost silver manual perpetual calendar ring with months and corresponding number of days with a blued steel pointer at the top. Blued steel ?poker? hand, gilt brass ?poker? hand for the calendar. Below, separate silver ring set on a gilt brass plate divided into seven day sectors, each with a figure representing a governing planet, all in champlevé enamel. M. Rectangular with additional small section for the date mechanism, 95 x 63 mm, days of the week section 40 x 37 mm, gilt brass, turned baluster pillars, fusee and gut, short three-wheel train, cross beat escapement with two steel-rod foliots terminated with silver winged cherub masks, set in separate removable bracket mounted to irregular pierced and engraved gilt plate, gilt eagle-shaped cock, elaborately pierced and engraved gilt brass mainspring set-up click, finely engraved count wheel set on the back plate, striking from fixed barrel, four-wheel train with heavy rectangulr governor, striking on a bell on the top. Hour hand mounted on a large steel wheel driven off 28-tooth steel wheel mounted on the fusee arbor, the calendar train 10-40/4-60, the moon train similar but with the last wheel of 59 teeth driven off the same 4-leaf lantern pinion. The days of the week driven off the same 28-tooth steel wheel set on the fusee via an intermediate wheel,Signed on the back plate in the typical Buschmann manner ?·CA·BV·? (for Casper Buschmann).Dim. Height 34 cm, width 13.5 at the center, 10.5 at the base.

?Ranunculus Aquatilis? Paul Bizot, St. Germain, Paris, circa 1645. Highly important and extremely rare 20K gold and painted on enamel pre-balance spring, single-hand, square pendant watch.

C. Two-body, square, deep back, gold, hinged square bezel engraved with foliate pattern, the back centered with a large taupe and green painted on enamel flower with six petals, surrounded by flowers and foliage, against a black enamel ground, gold frame engraved with foliate pattern, band similarly decorated with taupe and green flowers and foliage. Inside painted with a similar flower and foliage in black on a blue ground. Small gold pendant with loose gold ring. D. Square, white enamel on copper, radial Roman numerals, inner quarter-hour divisions, center painted with four pink flowers on a blue ribbon, corners painted with similar blue flowers. Blued steel single ?poker? hand. M. Hinged, square, 29.5 mm, gilt brass, vase pillars, fusee and chain (originally gut), four-wheel train with 6-6-6-5-leaf pinions, verge escapement, three-arm brass balance with later blued steel balance spring, irregular cock, worm-gear mainspring set-up, Tompion-type rack-and-pinion regulator.Signed on the back plate.Dim. 40 x 40 mm.

Josephus Norris, Amsterdam, circa 1685. Fine and rare silver and tortoiseshell, pair-cased early balance spring, single-hand pocket watch with alarm.

C. Outer: two-body, silver and tortoiseshell-covered brass, silver studs forming a rosette. Inner: two-body, ?bassine?, polished back, band pierced and engraved with inhabited foliage.D. Silver ring with radial Roman numerals on polished cartouches, inner quarter-hour divisions, center with revolving silver alarm disc with champlevé radial Arabic numerals and fitted with a brass hour pointer. Blued steel ?poker? alarm-setting hand. M. 37 mm, hinged, gilt brass full-plate with pierced pillars, fusee and chain, 4-wheel train set with the second wheel off-center, verge escapement brass balance with flat balance spring, single-footed cock, steel alarm train.Movement signed. Diam. 55 mm.

Jaques Morel, Geneva, circa 1690. Fine and rare silver, pair-cased, early balance spring, single-hand pocket watch with alarm.

C. Outer: two-body, silver and leather-covered copper, silver studs. Inner: two-body, ?bassine?, polished back, band pierced and engraved with inhabited foliage. D. Silver ring with radial Roman numerals, inner quarter-hour divisions, center with revolving silver alarm disc with champlevé radial Arabic numerals and fitted with steel hour pointer. Blued steel ?poker? alarm setting hand. M. 37 mm, hinged, frosted gilt full-plate with vase pillars, fusee and chain, 4-wheel train set in the old way on the periphery of the plates, verge escapement brass balance with flat balance spring, continental cock.Movement signed. Diam. 52 mm.

Andrew Dickie, London, No. 814, with London hallmarks for 1751-52. Extremely rare and very fine 22K gold pair-cased clockwatch striking hours and quarters with independent quarter-repeating, à tact option, and alarm.

C. Outer: two-body, bezels pierced and engraved with foliage. Inner: two-body, ?bassine?, back engraved with cornucopia, band pierced and engraved band in a floral pattern, mask at 6. D. Off-white enamel, radial Roman numerals, inner quarter-hour divisions, outer minute divisions with five-minute Arabic markers, center with revolving enamel alarm disc with radial Arabic numerals, aperture between IIII and V for setting the alarm. Blued steel ?beetle and poker? hands. M. 38 mm, hinged, frosted gilt full-plate with cylindrical pillars, fusee and chain, verge escapement, steel balance with flat balance spring, balance jeweled with diamond endstone, single-footed cock, Stogden type repeating system, striking, repeating and alarm each with two hammers, single bell, repeating by depressing the pendant, à tact option by lever at 3, gilt brass dust cap.Movement and dust cap signed.Diam. 57 mm.

Dowson, London, No. 8625, hallmarked 1769-70. Fine 22K gold triple-cased repoussé pocket watch, made for the Dutch market.

C. Outer: two-body, shagreen-covered gilt brass. MiddlEtwo-body, repoussé with mythological scene probably depicting the parting of Ulysses and Calypso, rocaille repoussé bezels. Inner: two-body, ?bassine?, polished.D. White enamel, radial Roman numerals, outer arched minute divisions with five-minute Arabic markers. Blued steel ?beetle and poker? hands. M. 35 mm, hinged, frosted gilt full-plate with square baluster pillars, fusee and chain, verge escapement, steel balance with flat balance spring, double-footed Dutch style cock.Signed on dial and movement.Diam. 55 mm.

Helen Saved from Aeneas by Venus Abraham Colomby, Genève, No. 2029, circa 1760. Very fine 20K gold pair-cased repoussé pocket watch, made for the Dutch market.

C. Outer: two-body, back repoussé with a scene depicting Venus restraining her son Aeneas from killing Helen, rocaille bezels. D. Gold, champlevé radial Roman numerals, half-hour divisions, outer arched minute divisions with five-minute Arabic markers on small polished cartouches. Gilt ?Louis XV? hands. M. 36 mm (16'''), hinged, frosted gilt full-plate with square baluster pillars, fusee and chain, verge escapement brass balance with flatbalance spring, continental silver cock.Signed on dial and movement.Diam. 47 mm.

David Playing the Harp Before King Saul William Crayton, London, No. 4008, hallmarked 1774-75. Very fine 22K gold triple-cased repoussé pocket watch, made for the Dutch market.

C. Outer: protective, two-body, tortoiseshell covered gilt brass, glazed on the back. MiddlEtwo-body, back repoussé in high relief with a scene depicting David playing the harp before King Saul, bezels in rocaille pattern, inner: two-body, ?bassine? with deep back, polished. D. White enamel, radial Roman numerals, outer arcaded minute division with five-minute Arabic figures. Gold ?Louis XV? hands. M. 33 mm, gilt brass full plate with square baluster pillars, fusee and chain, verge escapement, plain steel three-arm balance, flat balance spring, Dutch-type cock.Signed on the movement.Diam. 52 mm.

Francis Upjohn, London, No. 328, repoussé by William Gastrell, circa 1770. Very fine double-cased 22K gold and diamond-set repoussé quarter-repeating pocket watch, made for the Dutch market.

C. Outer: Louis XV, repoussé in very high relief with a scene probably depicting Joseph being sold by his brothers into slavery in Egypt, the bezel decorated with rocailles and foliage. Inner: two-body, by ?D. A.?, ?bassine?, band pierced and engraved with foliage, mask at 6. D. Slightly convex, white enamel, radial Roman numerals, outer arcaded minute ring with five-minute Arabic markers. Mounted on a brass hinged dial plate. Diamond-set hands. M. 38 mm, hinged, full plate frosted gilt, column pillars, fusee and chain, verge escapement, three-arm steel balance, single-footed cock pierced and engraved with asymmetrical foliage with exotic bird at the base, diamond endstone, repeating by two hammers on a bell by depressing the pendant.Movement signed, the case engraved with chaser?s initials.Diam. 51 mm.

Patek Philippe & Cie, Geneve, No. 836538, case No. 633544. Produced circa 1943. Very fine and extremely rare, rectangular, 18K pink gold gentleman's wristwatch with an 18K pink gold Patek Philippe buckle. Accompanied by the Extract from the Archives.

C. Two-body, solid, polished and brushed, concave hooded lugs with scroll lugs, "bombé" crystal.D. Champagne with applied pink gold dot indexes and Roman numerals, subsidiary seconds. Pink gold "Bâton" hands. M. Cal. 9 '''-90, tonneau, rhodium-plated, ?fausses-cotes? decoration, 18 jewels, straight line lever escapement, cut bimetallic balance, Breguet balance-spring, micrometer regulator.Dial, case and movement signed.Dim. 26 x 39 mm. Height 10 mm.

So-called ?Hour-Glass? Patek Philippe & Cie, Genève, No. 839063, case No. 646960, Ref. 1593. Produced circa 1950. Very fine, rectangular "bombé", flared, 18K yellow gold gentleman's wristwatch with an 18K yellow gold Patek Philippe buckle.

C. Two-body, solid, polished, concave sides, pillar shaped lugs, two-facet crystal. D. Matte silver with applied yellow gold dart and dot indexes and Arabic numerals, subsidiary seconds. Yellow gold "Bâton" hands. M. Cal. 9'''-90, tonneau, rhodium-plated, "fausses-côtes" decoration, 18 jewels, straight line lever escapement, cut bimetallic balance, Breguet balance-spring, micrometer regulator.Dial, case and movement signed.Dim. 25 x 41 mm. Height 10 mm.

So-called "Top Hat" Patek Philippe & Cie, Genève, No. 838167, case No. 641769, Ref. 1450. Produced circa 1950. Very fine and rare rectangular 18K pink gold gentleman?s wristwatch with a pink dial and an 18K pink gold Patek Philippe brick link bracelet.

C. Two-body, solid, polished and brushed, hooded lugs, "bombé" crystal. D. Pink with applied pink gold dot and bâton indexes, subsidiary seconds. Pink gold "Bâton" hands.M. Cal. 9'''-90, tonneau, rhodium-plated, "fausses-côtes" decoration, 18 jewels, straight line lever escapement, cut bimetallic balance, Breguet balance-spring, micrometer regulator.Dial, case and movement signed.Dim. 25 x 38 mm. Height 9 mm.Ref. 1450

Patek Philippe & Cie, Genève, No. 722440, case No. 679284, Ref. 2509. Produced circa 1950, retailed by Serpico & Laino. Very fine, water-resistant, 18K pink gold gentleman's wristwatch.

C. Two-body, solid, polished, screwed down case back, stepped bezel, concave lugs, dust cap. D. Pink with applied pink gold faceted fancy and dart indexes, subsidiary seconds. Pink gold "Dauphine" hands. M. 12'''-400, rhodium-plated, ?fausses-côtes? decoration, 18 jewels, straight line lever escapement, cut bimetallic balance, shock-absorber, Breguet balance-spring, swan-neck micrometer regulator.Dial, case and movement signed.Diam. 35 mm. Height 10 mm.