Housed in a 31mm round Oystersteel Oyster case, this Datejust 31 features a monobloc middle case, screw-down case back, and a screw-down winding crown with Twinlock double waterproofness — rated waterproof to 100 metres. Scratch-resistant sapphire crystal protects the dial, with a Cyclops lens positioned over the date window for effortless reading.
The mint green dial is fitted with stick indices and a Chromalight display offering long-lasting blue luminescence for low-light legibility. The domed bezel frames the dial cleanly, while the Oystersteel Jubilee bracelet — composed of five-piece links — fastens with a concealed folding Crownclasp.
Inside runs the Calibre 2236, a perpetual mechanical self-winding movement from Manufacture Rolex. It delivers precision of -2/+2 seconds per day after casing, holds a power reserve of approximately 55 hours, and carries Superlative Chronometer certification combining COSC and Rolex's own post-casing standards. The oscillator incorporates a Syloxi silicon hairspring with patented geometry and high-performance Paraflex shock absorbers, wound bidirectionally via a Perpetual rotor.
