Important Modern & Vintage Timepieces

Geneva, May 12, 2013

LOT 505

ROLEX REF. 6239 COSMOGRAPH Rolex Cosmograph, Daytona, case No. 1080301, Ref. 6239. Made in the 1965. 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 Ref. 6635 riveted expandable Oyster bracelet. Accompanied by the original invoice from Gubelin Lugano dated January 27th, 1966 and a service receipt from Gobbi dated 1967.

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. 72B, 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 190 mm.