Rolex Datejust 31 mm

Rolex's Datejust 31 mm, reference 278278-0032, comes in 18 ct yellow gold and measures 31 mm across. The case has a fluted bezel and a screw-down crown, with a sapphire crystal and Cyclops lens set over the date. Inside is the self-winding calibre 2236, a Rolex manufacture movement certified as a Superlative Chronometer with roughly 55 hours of power reserve. The dark grey dial is set with diamonds, including a large VI marked out with 11 stones. This is a women's dress watch built around Rolex's date complication and central seconds function. It is fitted to a President bracelet in yellow gold with a concealed folding Crownclasp. The screw-down crown helps hold the case to its 100 metre water resistance rating.