Rolex Datejust 31 mm

Rolex Datejust 31 mm, reference 278383RBR-0023, cased in steel and gold and measuring 31 mm across. The case carries a diamond-set bezel and a screw-down crown, with a sapphire crystal and Cyclops lens magnifying the date. The dial is black mother-of-pearl set with diamonds, so each piece reads slightly differently by nature of the material. Inside is Rolex's self-winding calibre 2236, a chronometer-certified movement with a power reserve of approximately 55 hours. Central seconds and a date display round out the functions. The steel and gold bracelet closes with a folding Oysterclasp fitted with the Easylink comfort extension link. Rolex rates the case to 100 metres of water resistance.