Rolex Datejust 31 mm

Rolex Datejust 31 mm, reference 278384RBR-0010, cased in steel and gold, measures 31 mm across. The dial is dark grey and set with diamonds, sitting under a scratch-resistant sapphire crystal with a Cyclops lens over the date. The bezel is diamond-set as well, adding sparkle to the white Rolesor case. Inside is calibre 2236, a self-winding chronometer movement with 55 hours of power reserve and central seconds. This is a Datejust, and it keeps the date function with rapid setting alongside the running seconds. A Jubilee bracelet in steel completes the watch, closed by a concealed folding Crownclasp in steel and gold. The screw-down crown helps hold the case to its 100 metre water resistance rating.