Rolex Datejust 31 mm

Rolex Datejust 31 mm, reference 278273-0026, cased in steel and yellow gold, is a women's dress watch built on the Oyster architecture. The case measures 31 mm across, fitted with a fluted bezel in gold and a screw-down crown. A scratch-resistant sapphire crystal covers the champagne-colour dial, set with diamonds, and includes a Cyclops lens over the date. Inside runs calibre 2236, a self-winding Perpetual movement with a Syloxi hairspring and about 55 hours of power reserve; Rolex certifies it as a Superlative Chronometer. The dial keeps a central seconds hand alongside the date display. A Jubilee bracelet in matching steel and gold closes with a concealed folding Crownclasp. Rolex rates the case to 100 metres.