Important Collectors’ Wristwatches, P...

Geneva, Oct 04, 2009

LOT 140

Ref. 16520 Color Change Mark II, 6 Inverted. Rolex, "Oyster Perpetual, Superlative Chronometer, Officially Certified, Cosmograph, Daytona", case No. W872180, Ref. 16520. Sold on May 8th, 1997. Fine and rare, self-winding, water-resistant, stainless steel wristwatch with round button chronograph, registers, tachometer and a stainless steel Oysterlock bracelet. Accompanied by fitted box, warranty (now void) and booklets.

C. Three-body, polished and brushed, screwed-down case back, buttons and crown, Triplock winding crown protected by the crown guard, tachometer graduation on the bezel to 400 units per hour, sapphire crystal. D. Bicolor black and reddish silver with applied luminous steel indexes, subsidiary dials for the seconds, the 12-hour and 30-minute registers, outer minute/seconds division. Luminous steel baton hands. M. Cal. 4030, rhodium-plated, oeil de perdrix decoration, 31 jewels, straight line lever escapement, monometallic balance adjusted to temperatures and 5 positions, shock absorber, self-compensating free-sprung Breguet balance spring, Microstella regulating screws. Dial, case and movement signed. Diam. 40 mm. Thickness 13 mm. Approx. overall length 175 mm.