Crafted in 18 kt yellow gold, the 31 mm round case of this Datejust 31 (ref. 278288RBR-0005) is built on Rolex's Oyster architecture — a monobloc middle case joined by a screw-down case back and screw-down Twinlock winding crown, together delivering water resistance to 100 metres / 330 feet. A scratch-resistant sapphire crystal sits above the dial with a Cyclops lens positioned over the date window for easy reading.
The champagne-colour dial is itself set with diamonds housed in 18 kt gold settings, while the bezel continues the diamond theme with its own full diamond setting. Timekeeping is delivered through the Calibre 2236 — a perpetual, mechanical, self-winding movement with COSC certification, a Syloxi silicon hairspring, Paraflex shock absorbers, and a power reserve of approximately 55 hours. Functions include centre hour, minute, and seconds hands, an instantaneous date with rapid setting, and stop-seconds for precise time adjustment.
The watch rides on an 18 kt yellow gold President bracelet featuring semi-circular three-piece links and secured by a concealed folding Crownclasp, completing an ensemble that places diamond-set luxury at every level of the design.
