Rolex Cosmograph Daytona 40 mm

Rolex Cosmograph Daytona 126519LN-0002 is a chronograph in 18 ct white gold, measuring 40 mm across and 11.9 mm thick. The monobloc black Cerachrom bezel carries a tachymetric scale for measuring speeds. Beneath the sapphire crystal sits a bright black and steel dial with luminous hands and indices, run by the self-winding calibre 4131 with small seconds and chronograph functions. Rolex certifies the movement as a chronometer, with a power reserve of approximately 72 hours. The case rides on an Oysterflex strap in black rubber, closed with a folding Oysterlock clasp in white gold that includes the Glidelock extension system. Water resistance reaches 100 metres, a figure the screw-down crown and monobloc case construction help maintain.