At 31 mm, this Datejust 31 is built around a round White Rolesor case that blends Oystersteel and white gold. The domed bezel is set with diamonds, while the solid case back, screw-down winding crown with Twinlock double waterproofness, and scratch-resistant sapphire crystal with Cyclops lens over the date deliver water resistance to 100 metres / 330 feet.
The dark grey dial is itself set with diamonds held in 18 kt gold settings, adding depth and brilliance to the face. The three-piece solid-link Oyster bracelet in Oystersteel fastens with a folding Oysterclasp featuring an Easylink 5 mm comfort extension link for a secure and adjustable fit.
Power comes from the Rolex Calibre 2236, a perpetual mechanical self-winding movement with a Syloxi silicon hairspring and Paraflex shock absorbers. It offers bidirectional winding via the Perpetual rotor, an approximately 55-hour power reserve, precision of -2/+2 seconds per day after casing, instantaneous date with rapid setting, and stop-seconds for precise time setting. The movement is COSC certified.
