Important Collectors' Wristwatches, P...

New York, Jun 15, 2005

LOT 23

"Cosmograph" Rolex, Oyster, Superlative Chronometer Officially Certified, Cosmograph, Ref. 6263, with black bezel. Production of this reference started in 1971. Fine, water-resistant, 18K yellow gold gentleman's wristwatch with round button chronograph, registers, tachometer and an 18K yellow gold Rolex Oyster bracelet.

C. Three-body, solid, polished and brushed, screwed-down case back, crown and buttons, tachometer graduationon the bezel to 200 units per hour. D. Bi-color black and gold with applied gold bâton indexes and tritium-coateddots, subsidiary "guilloché" dials for the seconds, the 12-hour and 30-minute registers. Tritium-coated yellow gold"bâton" hands. M. Cal. 727, rhodium-plated, 17 jewels, straight line lever escapement, monometallic balanceadjusted to 3 positions, shock-absorber, self-compensating Breguet balance-spring, Microstella regulating screws.Dial, case and movement signed. Diam. 37 mm. Thickness 14 mm.