Important Modern and Vintage Timepieces

New York, Apr 10, 2013

LOT 44

ROLEX REF. 6239 COSMOGRAPH DAYTONA STEEL Rolex Cosmograph, Daytona, case No. 1475649, Ref. 6239. Made in the 1960?s. Very fine and rare, water-resistant, stainless steel wristwatch with round button chronograph, registers, tachometer, steel bezel graduated to 300 UPH and a stainless steel Rolex USA Oyster bracelet

C. Three-body, polished and brushed, screw-down case back and crown, tachometer on the bezel graduated to 300 units per hour, case back engraved with a dedication. D. Bicolor black and silver with applied faceted steel baton indexes and luminous dots, outer 1/5th seconds track, subsidiary silver guilloche 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 free-sprung Breguet balance spring, Microstella regulating screws. Dial, case and movement signed. DIAM. 37 mm. THICKNESS 14 mm. Approx. overall length 180 mm.