Rolex Datejust 31 mm

Rolex Datejust 31 mm, reference 278289RBR-0005, in 18 ct white gold, is a women's dress watch measuring 31 mm across. The case carries a diamond-set bezel and a screw-down crown, with a sapphire crystal and Cyclops lens over the date. Inside is the self-winding calibre 2236, a Rolex manufacture movement certified as a Superlative Chronometer, with a power reserve of around 55 hours. The dial is white mother-of-pearl set with diamonds, paired with a central seconds hand and instantaneous date. This is a chronometer built for both timekeeping and presence on the wrist. The watch is fitted on a President bracelet in white gold, closed by a concealed folding Crownclasp in the same metal. Rolex rates the case to 100 metres.