Rolex Cosmograph Daytona 40 mm

Rolex Cosmograph Daytona 126518LN-0004 measures 40 mm across in yellow gold, a chronograph with a case thickness of 11.9 mm. The black monobloc Cerachrom bezel carries a moulded tachymetric scale and sits over an intense black and champagne-colour dial protected by a scratch-resistant sapphire crystal. Rolex's self-winding calibre 4131 drives the watch, a perpetual mechanical movement certified as a chronometer with a power reserve of about 72 hours. The chronograph counters run alongside a small seconds display, and both hands and indices carry luminescence for legibility in low light. The screw-down crown adds a further layer of security to the case. Rolex fits the piece to an Oysterflex bracelet in yellow gold, closed by a folding Oysterlock safety clasp with the Glidelock extension system. Water resistance reaches 100 metres.