Rolex Datejust 31 mm

The Rolex Datejust 31 mm, reference 278344RBR-0005, is cased in steel and gold with a diameter of 31 mm. A domed, diamond-set bezel frames the white mother-of-pearl dial, itself set with diamonds. The date sits beneath a Cyclops lens on the sapphire crystal. Inside is the self-winding calibre 2236, a Rolex chronometer movement with a power reserve of around 55 hours. The screw-down crown adds to the watch's protection against moisture, and central seconds and date functions round out the display. The steel bracelet closes with a folding Oysterclasp fitted with the Easylink comfort extension link. Water resistance reaches 100 metres, courtesy of the Oyster case construction.