Rolex Datejust 31 mm

Rolex Datejust 31, reference 278384RBR-0025, measures 31 mm in steel and white gold. The case has a diamond-set bezel and holds a dark grey dial with a sapphire crystal, fitted with a Cyclops lens over the date. Inside is the self-winding calibre 2236, a chronometer movement with a Syloxi hairspring and a power reserve of approximately 55 hours. Central seconds and date are shown, and the piece is set with diamonds on the bezel. A screw-down crown protects the movement. The steel bracelet closes with a folding Oysterclasp fitted with the Easylink comfort extension link. The Twinlock crown and case construction hold the water resistance at 100 metres.