At 31 mm, this Datejust 31 wears the White Rolesor construction — Oystersteel and white gold working together — across a round case with a monobloc middle, solid screw-down case back, and a screw-down Twinlock winding crown rated waterproof to 100 metres. The domed bezel is set with diamonds, while scratch-resistant sapphire crystal with a Cyclops lens over the date window keeps the dial protected and legible.
The dark grey dial features a Chromalight display with long-lasting blue luminescence, offering clear readability in low light. Completing the look is an Oystersteel Jubilee bracelet composed of five-piece links and secured by a concealed folding Crownclasp — a hallmark of the Datejust lineage.
Inside runs the Calibre 2236, a perpetual, mechanical, self-winding movement from Manufacture Rolex. A Syloxi silicon hairspring with patented geometry and Paraflex shock absorbers contribute to its precision of -2/+2 seconds per day after casing. Bidirectional winding via a Perpetual rotor delivers approximately 55 hours of power reserve, while instantaneous date setting with a stop-seconds function rounds out the functionality. The movement is COSC certified.
