Rolex Datejust 31 mm

Rolex Datejust 31 mm, reference 278273-0002, cased in steel and gold with a 31 mm diameter. The fluted bezel is gold, set against a monobloc middle case with a screw-down winding crown. A scratch-resistant sapphire crystal with Cyclops lens sits over the white dial and its date display. Inside is the calibre 2236, a self-winding mechanical movement with a Syloxi hairspring and a power reserve of around 55 hours; Rolex certifies the watch as a chronometer. Central seconds and a screw-down crown round out the specification. The bracelet is steel and gold, closed with a concealed folding Crownclasp. Rolex rates the case to a depth of 100 metres.