Rolex Day-Date 36 mm

Rolex Day-Date 36 mm, reference 128399TBR-0023, is cased in 18 ct white gold and measures 36 mm across. The monobloc middle case has a screw-down back and a screw-down crown with the Twinlock double waterproofness system. A sapphire crystal with a Cyclops lens sits over the date, and the bezel is set with diamonds. Inside is the calibre 3255, a self-winding movement with a 70-hour power reserve and Rolex's Superlative Chronometer certification. The white mother-of-pearl dial is set with diamonds and shows the day and date, along with central seconds. It rides on a President bracelet in white gold, closed by a concealed folding Crownclasp. The Twinlock crown helps keep the case waterproof to 100 metres.