Rolex Datejust 31 mm

Rolex Datejust 31, reference 278278-0011, measures 31 mm in 18 ct yellow gold. The olive green dial is set with diamonds in gold settings and sits under a scratch-resistant sapphire crystal with a Cyclops lens over the date. A fluted bezel in yellow gold frames the case, and the screw-down crown adds to the watch's construction. Inside is the self-winding calibre 2236, a Superlative Chronometer movement with a power reserve of approximately 55 hours. The President bracelet, with its semi-circular three-piece links, closes with a concealed folding Crownclasp, both in yellow gold. This Datejust is a chronometer, and Rolex rates the case to a depth of 100 metres.