At 31 mm, this Datejust 31 is built around a Yellow Rolesor case — a combination of Oystersteel and yellow gold — with a domed bezel set with diamonds. The monobloc middle case features a screw-down case back and a screw-down Twinlock winding crown, delivering water resistance to 100 metres. Scratch-resistant sapphire crystal with a Cyclops lens over the date completes the case.
The dark grey dial is itself set with diamonds housed in 18 kt gold settings, creating a surface that shifts between restraint and brilliance. The five-piece link Jubilee bracelet mirrors the case in Yellow Rolesor and fastens with a concealed folding Crownclasp.
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 rating of -2/+2 seconds per day after casing — certified as a Superlative Chronometer through both COSC and Rolex's own post-casing standards. Power reserve is approximately 55 hours via bidirectional winding through the Perpetual rotor.
