Audemars Piguet, Genève, No. 100507. Produced in the 1980s. Fine, rectangular, 18K yellow gold gentleman's quartz wristwatch with date, and an integrated 18K yellow gold Audemars Piguet link bracelet and clasp.

C. Two-body, solid, polished and brushed, case back with four screws, lapidated bezel, sapphire crystal. D. Black with applied tritium coated yellow gold bâton indexes, aperture for the date. Tritium coated yellow gold "bâton" hands. M. Cal. 2510, with quartz standardization.Dial, case and movement signed.Dim. 35 x 42 mm. Height 11 mm.Approx. overall length: 195 mm.

?Chicago? Audemars Piguet, Genève, "Jules Audemars, Sunrise - Sunset - Equation du Temps", No. 488695, case No. E43292, Ref. 25934BA. Produced in a limited quantity each year since 2000. Very fine and important, astronomic, self-winding, water-resistant, 18K yellow gold gentleman's wristwatch with perpetual calendar, leap year, moon phases, sunrise and sunset for the city of Chicago, equation of time, 40-hour autonomy and an 18K yellow gold Audemars Piguet deployant clasp.

C. Three-body, solid, polished and brushed, transparent case back with five screws, engraved bezel with graduation for the equation of time and Chicago?s latitude of 11h 50?, straight lugs, sapphire crystals. D. "Guilloché" silver with applied luminous markers and yellow gold triangular indexes, subsidiary dials for the date, days of the week at 6, 12-hour sunrise dial at 9 and 24-hour sunset dial at 3, aperture for the leap year at 1, the months and the aperture for the moon phases at 12. Black and skeleton "alpha" hands. M. Cal. 2120, rhodium plated, "fausses côtes" decoration, 41 jewels, straight line lever escapement, Gyromax balance adjusted to heat, cold, isochronism and five positions, shock-absorber, self-compensating free-sprung flat balance-spring, hand-engraved and skeletonized rotor with 21K gold segment. Dial, case and movement signed.Diam. 39 mm.

Roger Dubuis, Horloger Genevois, "Quantième Perpétuel - Bulletin d'Observatoire" No. 32. Produced in the late 1990s. Very fine, center-seconds, self-winding, astronomic, 18K pink gold gentleman's wristwatch with perpetual calendar, moon phases, leap year display and an 18K pink gold Roger Dubuis buckle.

C. Three-body, solid, polished and brushed, transparent screwed-down case back with etched crystal, brushed case band, polished concave bezel and lugs, sapphire crystals.D. White enamel with applied pink gold Arabic numerals and dart indexes, subsidiary dial for the days of the month, graduated sector for the age of the moon, apertures for the days of the week, the months, the moon phases and the leap year indication, outer 1/5 seconds scale. Pink gold "alpha" hands. M. Cal. 5739, stamped with the Geneva Quality Hallmark, rhodium plated, "fausses côtes" decoration, 30 jewels, straight line lever escapement, monometallic balance adjusted to 5 positions, shock-absorber, self-compensating flat balance-spring, central rotor with pink gold ?RD? monogram.Dial and movement signed.Diam. 37 mm.

Gérald Genta, Genève, No. 19199, case No. 22809, Ref. G 2009. Produced in the 1990s. Very fine, octagonal, astronomic, minute-repeating, skeletonized, water-resistant, 18K yellow gold gentleman's wristwatch with perpetual calendar, moon phases and an integrated, 18K yellow gold Gérald Genta link bracelet and deployant clasp.

C. Three-body, solid, polished, transparent case back, stepped bezel, cabochon sapphire-set winding crown and repeater slide, sapphire crystals. D. Transparent, subsidiary gold ring dials for the date, days of the week, the months, aperture for the moon phases at 6. Yellow gold "bâton" hands. M. Cal. 12???, skeletonized and hand-engraved, gilt, 28 jewels, straight line lever escapement, monometallic balance, shock-absorber, self-compensating Breguet balance-spring, repeating on gongs through activating slide on the band.Dial, case and movement signed.Diam. 35 mm.Approx. overall length: 180 mm.

Gérald Genta, Genève, "Tourbillon", No. 4, Ref. G.4009.4. Produced in the 1990s. Fine octagonal, astronomic, self-winding, water-resistant, skeletonized, 18K yellow gold gentleman's wristwatch with one-minute tourbillon regulator, perpetual calendar and moon phases, with a Gérald Genta black leather bracelet alternating with faceted gold segments and an 18K yellow gold Gérald Genta deployant clasp.

C. Two-body, shaped, solid, polished, transparent case back with eight screws, rounded stepped back and front bezels, "Vendôme" type lugs repeating the bracelet segments? decoration. D. Transparent, with tritium coated dot indexes, subsidiary white ring dials for the date, days of the week, and the months in black Arabic numerals and writing, apertures for the gold moon phases on a lapis-lazuli background, and for the leap year in blue. Tritium coated yellow gold "épée" hands. M. Cal. 23, engraved gilt brass, one-minute tourbillon regulator with lateral lever escapement, steel tourbillon carriage in shape of two stylized "G?s", monometallic balance, self-compensating flat balance spring and engraved skeletonized gold rotor bearing the initials "GG?.Dial, case and movement signed.Dim. 35 mm. Height 11 mm.

Parmigiani Fleurier, "Toric Minute Repeater", No. 2276, Ref. PF000113. Produced circa 2000. Very fine and very rare, minute-repeating, platinum gentleman's wristwatch with an 18K white gold Parmigiani Fleurier deployant clasp. Accompanied by a fitted box and certificate.

C. Three-body, solid, polished, stepped and reeded bezel, transparent case back, straight lugs, cabochon sapphire-set winding-crown, sapphire crystals. D. "Guilloché" black with painted Arabic numerals and dots. White gold "javelin" hands.M. Cal. 250, rhodium plated, "fausses côtes" decoration, 33 jewels, straight line lever escapement, monometallic balance adjusted to five positions, shock-absorber, self-compensating Breguet balance-spring, ?swan-neck? micrometer regulator, repeating on gongs through activating slide on the band.Dial, case and movement signed.Diam. 40 mm.

Parmigiani Fleurier, ?Forma?, No. 7441. Produced circa 2000. Fine and unusual, tonneau-shaped, center-seconds, self-winding, water-resistant, 18K white gold gentleman?s wristwatch with date, and an integrated 18K white gold Parmigiani link bracelet and deployant clasp. Accompanied by a fitted box.

C. Two-body, solid, polished, transparent case back with six screws, sapphire crystals.D. Black with luminous dot indexes on a "guilloché" and blue enamel reserve, applied white gold Breguet numerals at 12, aperture for the date at 6. Luminous blued steel "épée" hands. M. Cal. 331, rhodium plated, ?fausses côtes? decoration, 32 jewels, straight line lever escapement, monometallic balance adjusted to five positions, self-compensating flat balance-spring, micrometer regulator, 22K pink gold rotor, hack mechanism.Dial, case and movement signed.Dim. 34 x 44 mm.

Breguet, "Tourbillon Chronographe", No. 1529, Ref. 3577. Very fine and important, 18K white gold gentleman?s wristwatch with visible one-minute tourbillon regulator, round button chronograph, registers and an 18K white gold Breguet buckle. Accompanied by a fitted box and certificate.

C. Two-body, solid, polished, transparent case back with engraved edge, reeded band, rounded bezel, straight lugs, gold screwed bars, sapphire crystals. D. "Guilloché" silver with painted radial Roman numerals on an outer plain reserve, subsidiary dials for the 30-minute and 12-hour registers, aperture for the tourbillon cage at 12 under a polished two-arm steel bridge, subsidiary seconds hand on the tour-billon shaft, secret Breguet signature. Blued steel "Breguet" hands. M. No. 0370, Cal. 554, rhodium plated, "fausses côtes" decoration, 25 jewels, lateral lever escapement with one-minute tourbillon regulator with 3 equidistant polished steel arms, monometallic bal-ance adjusted to six positions, self-compensating Breguet balance spring.Dial, case and movement signed, movement also engraved: ?Brevet Du 7 Messidor An 9?.Diam. 38 mm.Dim. 28 x 40 mm.

International Watch Co., Schaffhausen, "Grande Complication", No. 18/ 50, Ref. 3770. Produced in a limited edition of 50 examples in 1993. Very fine and extremely rare, oversized, astronomic, minute-repeating, self-winding, platinum gentleman?s wristwatch with square button chronograph, registers, secular perpetual calendar, moon phases and a platinum IWC buckle.

C. Three-body, solid, polished, case back with screws, pyramidal bezel, curved straight lugs, screwed-down crown, sapphire crystal. D. White with applied yellow gold indexes, subsidiary dials for the seconds, the 12-hour and 30-minute registers, the date, days of the week, and the months, apertures for the four-digit year and the phases of the moon. Yellow gold ?bâton? hands. M. Cal 79091, rhodium plated, "fausses-côtes" decoration, 68 jewels, straight line lever escapement, monometallic balance, shock-absorber, self-compensating flat balance spring, repeating on gongs by activating slide on the band. Dial, case and movement signed.Diam. 42 mm. Height 16 mm.

International Watch Co., Schaffhausen, "Il Destriero Scafusia", No. 67/125. Produced in a limited edition of 125 examples in 1993. Extremely fine and rare, oversized, astronomic, minute-repeating, 18K yellow gold gentleman's wristwatch with square button split-seconds chronograph, registers, secular perpetual calendar and moon phases, flying one-minute tourbillon regulator and an 18K pink gold International Watch Co. buckle. Accompanied by an original fitted box and certificate.

C. Three-body, solid, polished, transparent case back with six screws and peripheral engraving, curved lugs, onyx-set winding crown, sapphire crystals. D. Satiné silver with painted radial Roman numerals, sunk guilloché subsidiary dials for the seconds, the 12-hour and 30-minute registers, the date, days of the week, the months, apertures for the moon phases and the four-digit year. Blued steel "feuille" hands. M. Cal. 1868, hand-engraved, gilt brass, 76 jewels, lateral lever escapement with one-minute flying tourbillon regulator with titanium cage and three equidistant arms, monometallic balance adjusted to heat, cold, and six positions, shock-absorber, self-compensating Breguet balance-spring, repeating on gongs through activating slide on the band.Dial, case and movement signed.Diam. 42 mm.

Jaeger-LeCoultre, Reverso ?Septantième? No. 326/500, Ref. 240.2.19. Produced in a limited edition of 500 examples in 2001 to celebrate the 70th Anniversary of the "Reverso" model. Very fine and rare, rectangular, 8-day going, 18K pink gold gentleman?s reversible wristwatch with oversized date, day/night and power reserve indications and an 18K pink gold Jaeger-LeCoultre deployant clasp.

C. Five-body, solid, polished, reeded bezel, inner transparent case back, outer case back engraved with edition number, sapphire crystals. D. "Guilloché" silver with painted Arabic numerals on an outer plain reserve, date at 7, sector for the up-and-down indication at 11, aperture for the day/night indication at 1, subsidiary seconds dial. Blued steel "épée" hands.M. Cal. 879 in 18K pink gold, twin barrels, "fausses côtes" decoration, 25 jewels, straight line lever escapement, monometallic balance, shock-absorber, self-compensating flat balance-spring, micrometer regulator.Dial, case and movement signed.Dim. 29 x 47 mm.

Jaeger-LeCoultre, "Reverso Tourbillon", No. 226/500, Ref. 270. 2.68. Produced in a limited edition of 500 examples in 1993. Very fine and rare, rectangular, 18K pink gold gentleman's reversible wristwatch with visible one-minute tourbillon regulator, 40-hour power reserve and an 18K pink gold Jaeger-LeCoultre deployant clasp. Accompanied by a fitted box and certificate.

C. Five-body, solid, polished, reeded bezel, transparent case back, sapphire crystals. D. "Guilloché" silver with painted Arabic numerals on a plain reserve, subsidiary seconds dial. On the back, the tourbillon under a polished steel bridge and the up-and-down indicator. Blued steel "épée" hands. M. Cal. 828, copper-colored, "fausses côtes" decoration, 27 jewels, lateral lever escapement with one-minute tourbillon regulator with three equidistant polished steel arms, monometallic balance, shock-absorber, self-compensating Breguet balance-spring.Dial, case and movement signed.Dim. 26 x 42 mm.

LeCoultre, No. 611646, case No. 512864. Produced in the 1940s. Fine and rare, rectangular, astronomic, 14K yellow gold gentleman's wristwatch with triple date and moon phases with a gold-plated buckle. Accompanied by a fitted box.

C. Two-body, solid, polished, black enameled graduation on the bezel, curved lugs. D. Two-tone silver with radium dots, outer minute track, outermost painted blue Arabic numerals for the date, apertures for the days of the week, the months and the moon phases, subsidiary seconds. Blued-steel and radium coated ?bâton" hands, red arrow for the date. M. Cal. 486/AW, tonneau shaped, rhodium plated, "fausses côtes" decoration, 17 jewels, straight line lever escapement, monometallic balance, flat balance-spring.Dial, case and movement signed.Dim. 23 x 40 mm.

Patek Philippe & Cie, Genève, retailed by Serpico Y Laino, Caracas, No. 946032, case No. 669376, Ref. 3103. Produced in the 1950s. Very fine, rare and unusual, 18K pink gold lady's bracelet-watch with an articulated and fluted, 18K pink gold bracelet with twisted cornucopia decoration and folding clasp.

C. Three-body, solid, polished. D. Matte silver with applied pink gold indexes. "Bâton" pink gold hands. M. 5??? x 7???, rhodium plated, "fausses côtes" decoration, 18 jewels, straight line lever escapement, monometallic balance, self-compensating Breguet balance spring.Dial, case and movement signed.Dim. 23 x 42 mm.

Patek Philippe & Cie, Geneve, No. 900820, case No. 628487, Ref. 1458. Produced in 1942, sold on Sept. 14, 1942. Fine, square, 18K pink gold gentleman's wristwatch. Accompanied by an Extract from the Archives.

C. Two-body, solid, polished, stepped bezel, ball-shaped lugs.D. Matte silver with applied pink gold Arabic numerals, subsidiary seconds dial. Yellow gold "feuille" hands.M. Cal. 10?'', rhodium plated, "fausses cotes" decoration, 19 jewels, straight line lever escapement, cut bimetallic compensation balance, blued steel flat balance-spring.Dial, case and movement signed.Dim. 26 x 26 mm.

Patek Philippe & Cie, Genève, No. 8213333, case No. 293366. Produced in the late 1920s. Very fine and rare, 18K yellow gold gentleman's wristwatch.

C. Four-body, solid, polished, hinged case back and lunette, wire lugs with screws. D. White enamel with painted Breguet numerals, sunk subsidiary seconds dial. Blued steel "spade" hands. M. Cal. 11 1/2''', gilt brass, 15 jewels, straight line lever escapement à moustache, cut bimetallic compensation balance, blued steel flat balance spring.Dial, case and movement signed.Diam. 31 mm.

Patek Philippe & Cie, Genève, No. 184160, case No. 600864. Produced in the 1920s. Very fine and rare, tonneau-shaped and curved, 18K yellow gold gentleman?s wristwatch.

C. Two-body, solid, polished, straight lugs, "bombé" crystal.D. Matte silver with painted radium-coated radial Arabic numerals. Radium-coated "lozenge" hands. M. Cal. 11 1/2''', rhodium plated, "fausses côtes" decoration, 15 jewels, straight line lever escapement à moustache, cut bimetallic compensation balance adjusted to 8 positions, blued steel flatbalance spring.Dial, case and movement signed.Dim. 30 x 42 mm.

So-called "Top Hat" Patek Philippe & Cie, Genève, No. 837913, case No. 639115. Produced in the 1940s. Very fine, rectangular "bombé", 18K pink gold gentleman's wristwatch with an 18K pink gold Patek Philippe brick link bracelet.

C. Two-body, solid, polished and brushed, hooded lugs, "bombé" crystal. D. Copper-colored with applied pink gold baton and dot indexes, subsidiary seconds dial. Pink gold "bâton" hands. M. Cal. 9'''-90, tonneau-shaped, rhodium-plated, "fausses côtes" decoration, 18 jewels, straight line lever escapement, monometallic balance adjusted to heat, cold, isochronism and five positions, Breguet balance spring, micrometer regulator.Dial, case, and movement signed.Dim. 25 x 37 mm.

Patek Philippe & Cie, Genève, No. 763622, case No. 696407, Ref. 2540. Produced in the 1950s. Very fine, "carré galbé", self-winding, 18K yellow gold gentleman's wristwatch.

C. Two-body, solid, polished, triangular lugs. D. Matte silver with applied yellow gold indexes. Yellow gold "bâton"hands. M. Cal. 12-600 AT, stamped with the Geneva Quality Hallmark, rhodium plated, "fausses côtes" decoration, 30 jewels, straight line lever escapement, Gyromax balance adjusted to heat, cold, isochronism and five positions, shock-absorber, self-compensating Breguet balance-spring, micrometer regulator.Dial, case, and movement signed.Dim. 31 x 31 mm.

So-called "Top Hat" Patek Philippe, Genève, No. 833925, case No. 622155, Ref. 1450. Production of this reference started in 1940. Very fine and rare, rectangular "bombé", 18K pink gold gentleman?s wristwatch with an 18K pink gold Patek Philippe buckle.

C. Two-body, solid, polished and brushed, hooded lugs, "bombé" crystal. D. Satiné silver with applied pink gold dot and bâton indexes, subsidiary seconds. Pink gold "bâton" hands.M. Cal. 9'''-90, tonneau-shaped, rhodium plated, "fausses côtes" decoration, 18 jewels, straight line lever escapement, cut bimetallic compensation balance, blued steel Breguet balance-spring, micrometer regulator.Dial, case and movement signed.Dim. 25 x 36 mm. Height 9.6 mm.