Rolex Cosmograph Daytona 40 mm

Rolex Cosmograph Daytona 126500LN-0001 is a chronograph in steel, measuring 40 mm across and 11.9 mm thick. The case carries a black ceramic bezel with a tachymetric scale, and the crown screws down against the middle case. Inside is the self-winding calibre 4131, a Rolex manufacture movement certified as a chronometer with 72 hours of power reserve. The white dial, with contrasting black counter rings, has luminous hands and indices and includes a small seconds subdial along with the chronograph counters. A sapphire crystal covers the dial. The watch is fitted to a steel Oyster bracelet closed by a folding Oysterlock safety clasp with a comfort extension link. That clasp is part of a package rated waterproof to 100 metres.