Rolex Datejust 31 mm

The Datejust 31 mm, reference 278341RBR-0018, comes in steel and gold and measures 31 mm across. The domed bezel is set with diamonds, adding sparkle around the slate dial. A Cyclops lens sits over the date on the sapphire crystal. Inside is the self-winding calibre 2236, a Rolex manufacture movement certified as a chronometer with a power reserve of approximately 55 hours. The dial keeps a central seconds display alongside the date function, and the watch is set with diamonds. The bracelet is steel and gold, fitted with a concealed folding Crownclasp. Rolex rates the case to 100 metres of water resistance.