Important Modern and Vintage Timepieces.

Geneva, Nov 13, 2010

LOT 524

IWC ? White Gold Da Vinci Tourbillon No.1 ? Limited Edition Leonardo Da Vinci Dial International Watch Co., Schaffhausen, "Da Vinci Tourbillon-Limited Edition", No. 01/50, movement No. 2754425, case No. 2883916, Ref. 3752. Made in a limited edition of 50 examples in white gold to celebrate the 550th anniversary of the birth of Leonardo da Vinci in 2002. Very fine and very rare, water-resistant, 18K white gold wristwatch with one-minute flying tourbillon regulator, round button chronograph, registers, secular perpetual calendar, moon phases and an 18K white gold IWC buckle. Accompanied by the original fitted box, guarantee, certificate, instruction manual and booklets.

C. Two-body, solid, polished, stepped bezel, hooded mobile lugs, transparent case back with six screws, hesalite crystal. D. Special 18K white gold with applied and engraved in relief head of Leonardo and three of his inventions and signature, gold baton indexes and 1/5th seconds divisions, subsidiary guilloché dials for the seconds, the 12 hour register, the date, days of the week, the months, apertures for the moon phases and for the year display with four digits until 2499. Luminous blued steel baton hands. M. Cal. 76061, gilt brass, fausses cotes decoration, 35 jewels, lateral lever escapement with flying one-minute tourbillon regulator with three equidistant titanium arms, monometallic balance adjusted to five positions, shock absorber, selfcompensating Breguet balance spring. Dial, case and movement signed. Dim. 39 mm. Thickness 14.5 mm.