Crafted in 18 kt Everose gold, the 28 mm Oyster case of the Lady-Datejust 279135RBR-0019 features a monobloc middle case, screw-down case back, and a screw-down Twinlock winding crown for waterproofness to 100 metres / 330 feet. The bezel is set with diamonds, while a scratch-resistant sapphire crystal with a Cyclops lens over the date sits above the dial.
The mother-of-pearl dial is itself set with diamonds in 18 kt gold settings, lending the piece an interplay of iridescent color and brilliant stone. Powering the watch is the Caliber 2236, a perpetual mechanical self-winding movement from Manufacture Rolex offering a precision of -2/+2 seconds per day after casing, an approximately 55-hour power reserve, and a Syloxi silicon hairspring paired with Paraflex shock absorbers. The movement carries Superlative Chronometer certification, reflecting both COSC testing and Rolex's own post-casing standards.
The watch rides on an 18 kt Everose gold Jubilee bracelet composed of five-piece links and secured by a concealed folding Crownclasp. Functions include centre hour, minute, and seconds hands, an instantaneous date with rapid setting, and stop-seconds for precise time adjustment.
