At 28 mm, the Lady-Datejust reference 279174-0010 is built around an Oyster case crafted in White Rolesor, Rolex's combination of Oystersteel and white gold. The monobloc middle case features a screw-down case back and screw-down winding crown with a Twinlock double waterproofness system, achieving water resistance to 100 metres / 330 feet. A scratch-resistant sapphire crystal with a Cyclops lens over the date completes the case architecture.
The dial presents mother-of-pearl set with diamonds held in 18 kt gold settings, while the fluted white gold bezel frames the display with quiet elegance. The Oyster bracelet in Oystersteel is composed of three-piece solid links and secured by a folding Oysterclasp with an Easylink 5 mm comfort extension link.
Inside, Rolex Calibre 2236 — a perpetual, mechanical, self-winding movement — drives the watch. It features a Syloxi silicon hairspring with patented geometry, high-performance Paraflex shock absorbers, bidirectional self-winding via a Perpetual rotor, and a power reserve of approximately 55 hours. The movement delivers a precision of -2/+2 seconds per day after casing, meeting the Superlative Chronometer standard through both COSC and Rolex certification.
