At 31 mm, this Datejust 31 wears the classic round Oyster case crafted in White Rolesor, combining Oystersteel with white gold. The bezel is set with diamonds, while a scratch-resistant sapphire crystal with a Cyclops lens over the date keeps the silver dial legible at a glance. A screw-down case back and screw-down winding crown with Twinlock double waterproofness deliver water resistance to 100 metres / 330 feet.
The silver dial features a Chromalight display offering long-lasting blue luminescence for easy reading in low light. Centre hour, minute, and seconds hands are joined by an instantaneous date with rapid setting and a stop-seconds function for precise time adjustment. The Oystersteel Jubilee bracelet, distinguished by its five-piece links, fastens with a concealed folding Crownclasp.
Power comes from the Calibre 2236, a perpetual, mechanical, self-winding movement from Manufacture Rolex. It runs with a precision of -2/+2 seconds per day after casing and stores approximately 55 hours of power reserve. The oscillator uses a Syloxi silicon hairspring with patented geometry, complemented by high-performance Paraflex shock absorbers, and the movement winds bidirectionally via a Perpetual rotor. The calibre is COSC certified.
