Important Collector's Watches, Pocket...

Geneva, Nov 11, 2007

LOT 33

"Grande Complication" International Watch Co., Schaffhausen, "Grande Complication", No. 20/50, Ref. 3770. Made in a limited edition of 50 examples in 1992. Very fine and extremely rare minute-repeating, self-winding platinum wristwatch with square button chronograph, registers, secular perpetual calendar, moon phases and a platinum IWC buckle. Accompanied by a fitted box.

C. Three-body, solid, polished, case back with screws, inclined 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 ?baton? 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. Thickness 16 mm.