Important Modern and Vintage Timepieces

Hong Kong, Aug 25, 2012

LOT 104

ROLEX, REF. 6263 COSMOGRAPH DAYTONA STEEL Rolex, Genève, Oyster Cosmograph Daytona, case No. 5503251, Ref. 6263. Made in 1978. Fine, water-resistant, stainless steel wristwatch with black bezel, round button chronograph, registers, tachometer and a stainless steel Rolex Oyster bracelet Ref. 78350.

C. Three-body, polished and brushed, screwed-down case back, buttons and Triplock winding crown, tachometer graduation on the bezel to 200 units per hour. D. Bicolor black and silver with applied steel baton indexes and tritium dots, outer 1/5th seconds track, subsidiary guilloché dials for the seconds, the 12-hour and 30-minute registers. Luminous steel baton hands. M. Cal. 727, rhodium-plated, 17 jewels, straight-line lever escapement, monometallic balance adjusted to 3 positions, shock absorber, self-compensating Breguet balance spring, Microstella regulating screws. Dial, case and movement signed. Diam. 37 mm. Thickness 13 mm. Approx. overall length 170 mm.