Rolex Datejust 31 mm

The Rolex Datejust 31 mm, reference 278273-0001, comes in steel and yellow gold with a 31 mm case. The bezel is fluted, a detail carried over in gold against the steel case. A sapphire crystal covers the white dial, with a Cyclops lens set over the date. Inside is the self-winding calibre 2236, a chronometer with a power reserve of approximately 55 hours and a central seconds display. The screw-down crown protects the movement, and the date function offers rapid setting. The bracelet is steel and gold, fitted with a folding Oysterclasp that includes the Easylink comfort extension link. Rolex rates the case to 100 metres.