Rolex Datejust 31 mm

Rolex Datejust 31 mm, reference 278381RBR-0018, has a 31 mm case in steel and gold. The bezel is diamond-set, and the sapphire crystal carries a Cyclops lens over the date. Inside is the calibre 2236, a self-winding movement certified as a chronometer, with a power reserve of approximately 55 hours. The slate dial shows a central seconds hand and a date display, and the crown is a screw-down type for added security. Beyond the bezel, the watch is set with diamonds. It is fitted on a Jubilee bracelet in steel and gold, closed by a concealed folding clasp. The case holds its 100 metre water resistance thanks to the screw-down crown's double waterproofness system.