Rolex Cosmograph Daytona 40 mm

The Rolex Cosmograph Daytona 40 mm, reference 126509-0003, is crafted in White Gold with a matching White gold bezel. Its Steel and bright black dial is fitted on an Oyster bracelet and protected by a sapphire crystal, with a bezel that carries the tachymeter scale used for measuring average speeds. Inside is the self-winding caliber 4131, a chronometer-certified movement with 72 hours of power reserve, driving the chronograph and small seconds functions. The case measures 40 mm across and 11.9 mm thick, with water resistance to 100 meters.