International Watch Co., Schaffhausen, "Il Destriero Scafusia Oriental". Produced as a unique piece in 1995. Extremely fine and unique, oversized, astronomic, minute-repeating, 18K white gold and diamonds gentleman's wristwatch with square button split-seconds chronograph, registers, perpetual calendar and moon phases, flying one-minute tourbillon regulator and an 18K white gold IWC link bracelet with diamonds and deployant clasp. Accompanied by a box and certificate.

C. three-body, massive, polished, bezel set with 43 calibre-cut diamonds, transparent case back with screws and peripheral engraving, curved lugs, sapphire crystals. Bracelet set with 176 square-cut diamonds, for a total weight of 21 carats. D. satiné silver with painted Roman numerals, sunk guilloché auxiliary dials for the seconds, the 12 hour and 30 minute registers, the days of the month, of the week, the months, apertures for the moon phases and the 4-digit year. "Feuille" blued steel hands. M. Cal. 1868 hand engraved, gilt brass and rhodium-plated, 76 jewels, lateral lever escapement with titanium escapement bridge, flying one-minute tourbillon regulator with titanium cage and 3 equidistant arms, monometallic balance adjusted for heat, cold and 6 positions, shock-absorber, self-compensating Breguet balance-spring, repeating on gongs by activating slide on the band. Dial, case and movement signed. Diam. 42 mm. Approx. overall length: 200 mm.

Patek Philippe & Cie, Genève, No. 863792, case No. 2632526, Ref. 2499. Produced in the 1960's. Very fine and rare, astronomic, 18K yellow gold gentleman's wristwatch with round button chronograph, 30-minute register, perpetual calendar, moon phases and an 18K gold Patek Philippe buckle.

C. three-body, solid, polished, concave bezel, fluted lugs, domed crystal. D. matte silver with applied yellow gold bâton indexes, auxiliary dials for the seconds and the 30-minute register, graduation for the days of the month, apertures for the days of the week, the months and the moon phases. "Feuille" yellow gold hands. M. Cal. 13'''CC, rhodium-plated, "fausses-côtes" decoration, 23 jewels, straight line lever escapement, monometallic balance, 8 adjustments, self-compensating Breguet balance spring, micrometer regulator. Dial, case and movement signed. Diam. 38 mm.

Unique and Most Complicated Wristwatch in the World. Gérald Genta, Genève, "Grande Sonnerie Retro-grade No. 1", Ref. G0026-6. Produced in a series of only 4 examples in 1994: one in 18K pink gold (this lot), one in yellow gold, one in white gold and one in platinum. Exceptionally fine and equally important, double-train self-winding, water-resistant, 18K pink gold gentleman's wristwatch with West-minster Chime, Grande et Petite Sonnerie and Silence display, four gongs and four hammers, minute-repeating, retrograde perpetual calendar, 48-hour power reserve indicator and power reserve indicator for the striking work, one minute tourbillon regulator in a fully hand-engraved movement and an 18K pink gold Gérald Genta deployant clasp. Accompanied by a fitted box and certificate.

C. two-body, solid, polished, concentric circular design, tapered at the top, transparent case back with sapphire crystal to view the movement, secured by 6 bolts, ?Vendôme? type lugs with fluted middle section, Genta-style winding crown and crowns for Grande/Petite Sonnerie at 7 o'clock and silence/chiming at 11, Genta-style push-button for the minute-repeater activation at 9, pushers in the band to adjust the calendar functions, sapphire crystals. D. lavender-colored mother-of-pearl with luminous dots and a pink gold Arabic "12"; 6 auxiliary white dials with red markers for (starting at 1 o'clock) the striking up-and-down indication, the going-train up-and-down indication, the seconds indication, the Grande or Petite Sonnerie indication, the Silence or Chiming indication and inner concentric 3/4 circle for the retrograde date indication; apertures for the days of the week, the months and the leap year. "Bâton" luminous pink gold hands, "Bâton" red hands for the auxiliary dials. M. Cal. 14''' signed Gerald Genta No. 1 and stamped with the Geneva Quality Hallmark, entirely hand-engraved, copper-colored, 57 jewels, lateral lever escapement, one minute tourbillon regulator with A-shaped polished steel frame and polished and chamfered GG-style tourbillon bridge, monometallic balance with screws, self-compensating flat balance-spring, bi-directional winding by skeletonized rotor engraved "Grande Sonnerie", tandem-winding the going train in one direction and the striking train in the other. Dial, case and movement signed. Diam. 40 mm. Thickness 15.7 mm.

A. Lange & Söhne, Glashütte I. SA., Tourbillon "Pour le Mérite", No. 5/50, Ref. 701.005. Produced in a limi-ted edition of 50 examples in the 1990's. Out of this edition, only 10 examples were produced on a platinum bracelet, the remaining 40 were produced with a leather strap. Extremely fine and rare, platinum gentleman's wristwatch with one minute tourbillon regu-lator, 36 hours power reserve and an integrated, platinum A. Lange & Söhne articulated link bracelet.

C. three-body, solid, polished and brushed, transparent case back with 6 screws to view the movement, sapphire crystals. D. solid satiné silver with painted Arabic numerals, auxiliary sunk guilloché dials for the seconds and the up-and-down indication, aperture with polished steel bridge to view the tourbillon. ""Alpha"" blued steel hands. M. Cal. L 902.0 - No. 354, Glashütte three-quarter plate, nickel-silver, movement decorated and engraved by hand, ""fausses-côtes"" decoration, 29 jewels including 5 in screw-mounted gold châtons, tourbillon cage bearing 2 diamond endstones, lateral lever escapement with one minute tourbillon regulator with polished-steel equidistant three-arm carriage, glucydur balance with screws, adjusted to 5 positions, Nivarox balance-spring with overcoil invented by Prof. Strasser, power equalization with chain and fusée, maintaining power and stepped planetary gearing, shock-absorber, self-compensating Breguet balance-spring. Dial, case and movement signed. Diam. 38 mm. Approx. overall length: 195 mm.