Rolex Datejust 31 mm

This Rolex Datejust 31 mm, reference 278285RBR-0025, is cased in rose gold. The case measures 31 mm across, with a screw-down crown backed by the Twinlock double waterproofness system. The bezel is diamond-set, and the rosé dial is also set with diamonds, viewed through a sapphire crystal with a Cyclops lens over the date. Inside is the self-winding calibre 2236, a chronometer-certified movement with a power reserve of approximately 55 hours. The watch shows the date and runs with central seconds. A President bracelet in rose gold, with its semi-circular three-piece links, closes on a concealed folding Crownclasp. That Twinlock crown is what holds the case to its 100 metre rating.