Rolex Cosmograph Daytona 40 mm

The Rolex Cosmograph Daytona 126509-0001 is a chronograph in 18 ct white gold, measuring 40 mm across and 11.9 mm thick. The bezel is fixed with an engraved tachymetric scale, also in white gold, and the dial is finished in bright black and steel. A scratch-resistant sapphire crystal covers the dial, with luminous hands and indices for legibility. Rolex's self-winding calibre 4131 drives the watch, offering a chronograph with small seconds and a tachymeter function, and the movement carries chronometer certification. The case is paired with an 18 ct white gold Oyster bracelet on a folding Oysterlock clasp with an Easylink comfort extension link. The Triplock screw-down crown helps keep the case waterproof to 100 metres.