Important Collectors' Wristwatches, P...

New York, Jun 11, 2009

LOT 298

Ref. 5250G, Limited Edition Annual Calendar with Silicon Escape Wheel Patek Philippe, Genève, ?Patek Philippe Advanced Research? Silicon Escape Wheel,? No. 3636073, case No. 4339162, Ref. 5250G. Made in a limited edition of 100 pieces in 2005, sold on October 30th, 2006. Very fine, rare and innovative, center seconds, self-winding, water-resistant, 18K white gold wristwatch with annual calendar, power-reserve indication, moon phases, silicon escape wheel and an 18K white gold Patek Philippe deployant clasp. Accompanied by the original box, Certificate of Origin and booklet. To be sold without reserve

C. Two-body, polished, transparent screwed-down case back with cyclops lens over the escape wheel, curved bezel, correctors in the band, concave lugs, sapphire crystals. D. Brushed silver with applied black baton indexes and Arabic quarter-hour numerals, luminous dots, outer minute track, subsidiary dials for the days of the week, the months, aperture for the moon phases and the date at 6, powerreserve indication below 12. Luminous white gold feuille hands. M. Cal. 315/266, stamped with the Seal of Geneva quality mark, rhodium-plated, fausses cotes decoration, 36 jewels, straight-line lever escapement, silicon escape wheel, the bridge with additional milled opening, Gyromax balance adjusted to heat, cold, isochronism and 5 positions, shock absorber, self-compensating free-sprung flat balance spring, 21K gold rotor with zirconium ball-bearings. Dial, movement and case signed, back crystal inscribed: ?Patek Philippe Advanced Research.? Diam. 39 mm. Thickness 12 mm.