Reference 6265 was introduced to the market in approximately 1969 and ceased production in the late 1980s. The model features screw down pushers and thus carries an "Oyster" designation on the dial. It is powered by caliber 727, a Rolex upgrade of Valjoux caliber 72 and the final evolution of this movement (following cal. 72A, 72B, 722, and 722-1). From the late 80s, with reference 16520, Rolex started to employ an El Primero based movement in the Cosmograph.

The present watch bears a 3 million serial number and is this a very early variant of the celebrated model. Preserved in excellent condition, it even retains its original Mk 1 pushers. Most notably, the subsidiary registers have toned down to a beautiful and rich chocolate shade over time. The contrast against the silvered dial is stunning. It is extraordinary how the registers have aged so evenly. Most importantly, the white graphics within the registers remain bright, clear and not mottled, showing that the counters have aged naturally, and have not been tampered with. The luminous dots are furthermore intact and perfectly round on the dial and match the hands.