Rolex Datejust 31 mm

The Rolex Datejust 31 mm, reference 278243-0020, is cased in steel and gold with a diameter of 31 mm. A domed bezel tops the case, and the dial sits under a scratch-resistant sapphire crystal with a Cyclops lens over the date. The silver dial is set with diamonds, giving it a distinct sparkle against the Rolesor case. Inside is the self-winding calibre 2236, a chronometer movement with a power reserve of approximately 55 hours. A screw-down crown protects the movement, and central seconds run alongside the date function. The watch is fitted to a matching steel and gold bracelet with a concealed folding Crownclasp. Rolex rates the case to 100 metres of water resistance.