ROLEX, REF. 6265 COSMOGRAPH DAYTONA BLACK DIAL
Rolex, "Oyster Cosmograph, Daytona", movement No. 7298, case No. 6126507,
Ref. 6265/6263. Made circa 1979.
Fine and rare, water-resistant, stainless steel wristwatch with steel bezel, round button
chronograph, registers, tachometer and a stainless steel Rolex Oyster bracelet Ref. 78350.
Three-body, polished and brushed, screwed-down case back, buttons and Triplock
winding crown, tachometer graduation on the bezel to 200 units per hour, hesalyte crystal.
Bicolor black and silver with applied steel baton indexes and luminous dots, outer
1/5th seconds track, subsidiary guilloché dials for the seconds, the 12-hour and 30-minute
registers. Luminous steel baton hands.
Cal. 727, rhodium-plated, 17 jewels, straight-line lever escapement, monometallic
balance with Microstella regulating screws, adjusted to 3 positions, shock absorber,
self-compensating Breguet balance spring.