Rolex Datejust 31 mm

The Rolex Datejust 31 mm, reference 278343RBR-0024, is cased in a combination of steel and gold measuring 31 mm across. The domed bezel is set with diamonds, and the black mother-of-pearl dial is likewise set with diamonds beneath a sapphire crystal with a Cyclops lens over the date. Inside is the calibre 2236, a self-winding movement offering approximately 55 hours of power reserve, certified as a chronometer. The watch reads centre seconds and an instantaneous date, set via the screw-down crown. A Jubilee bracelet in the same steel and gold combination closes with a concealed folding Crownclasp. Depth rating stands at 100 metres, courtesy of the crown's Twinlock double waterproofness system.