Crafted entirely in 18kt yellow gold, the 28mm round case of this Lady-Datejust features a bezel set with 44 brilliant-cut diamonds and a scratch-resistant sapphire crystal with a Cyclops lens over the date. The Oyster architecture employs a monobloc middle case, screw-down case back, and a screw-down Twinlock winding crown, delivering water resistance to 100 metres / 330 feet.
The silver dial is set with diamonds in 18kt gold settings, while the date complication offers instantaneous display with rapid setting and stop-seconds for precise time adjustment. Power comes from the Rolex Calibre 2236, a perpetual mechanical self-winding movement with a Syloxi silicon hairspring, Paraflex shock absorbers, bidirectional winding via a Perpetual rotor, and a power reserve of approximately 55 hours. The movement is COSC certified to a precision of -2/+2 seconds per day after casing.
The watch is worn on the President bracelet in 18kt yellow gold, distinguished by its semi-circular three-piece links and secured by a concealed folding Crownclasp. Reference 279138RBR-0019 represents the Lady-Datejust 28 in one of its most jewel-forward expressions.
