At 31 mm, this Datejust 31 presents a round Oyster case crafted in Everose Rolesor, blending Oystersteel with Everose gold across the monobloc middle case, solid case back, and screw-down winding crown. A scratch-resistant sapphire crystal with a Cyclops lens magnifies the date, while the domed bezel is set with diamonds throughout. Waterproofness is rated to 100 metres / 330 feet via the Twinlock double waterproofness system.
The silver dial is set with diamonds in 18 kt gold settings, and the Oyster bracelet — composed of three-piece solid links in matching Everose Rolesor — fastens with a folding Oysterclasp featuring an Easylink 5 mm comfort extension link.
Powering the watch is the Calibre 2236, a perpetual, mechanical, self-winding movement manufactured by Rolex. It features a Syloxi hairspring in silicon with patented geometry, Paraflex shock absorbers, bidirectional winding via a Perpetual rotor, approximately 55 hours of power reserve, and a precision rating of -2/+2 seconds per day after casing. The movement carries Superlative Chronometer certification, reflecting both COSC timing standards and Rolex's own post-casing verification.
