Rolex, Rare Ref. 6263, Stainless Steel Oyster Cosmograph, 'Big Red', Circa 1978 Case: Three-body, polished and brushed, screwed-down case back, screw down buttons and Triplock winding crown, tachometer graduation on the bezel to 200 units per hour, hesalyte crystal. Dial: Bicolor black and white 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. Movement: 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. Band: stainless steel Rolex Oyster folded bracelet Ref. 7835, 13 links Signed: All singed Rolex