Housed in a 31mm monobloc 18kt white gold Oyster case, this Datejust 31 features a screw-down case back, screw-down winding crown with Twinlock double waterproofness, and scratch-resistant sapphire crystal with a Cyclops lens positioned over the date window. The bezel is set with diamonds, and the watch is waterproof to 100 metres / 330 feet.
The dark grey dial is equipped with Rolex's Chromalight display, delivering long-lasting blue luminescence for strong legibility. Inside, the perpetual mechanical self-winding Calibre 2236 — a Manufacture Rolex movement — offers approximately 55 hours of power reserve, a precision rating of -2/+2 seconds per day after casing, and carries Superlative Chronometer certification (COSC plus Rolex certification after casing). The oscillator uses a Syloxi silicon hairspring with patented geometry and Paraflex shock absorbers.
The 18kt white gold President bracelet features semi-circular three-piece links and closes with a concealed folding Crownclasp, completing this reference with the same material continuity as the case.
