Housed in a 28mm Oyster case crafted from 18kt white gold, this Lady-Datejust features a monobloc middle case, screw-down case back, and a screw-down Twinlock winding crown providing waterproofness to 100 metres. The bezel is set with 44 brilliant-cut diamonds, while a scratch-resistant sapphire crystal with a Cyclops lens over the date completes the case.
The pink dial is rendered with Roman numeral hour markers, offering a warm, feminine character. Beneath it runs the Calibre 2236, a perpetual, mechanical, self-winding movement with a Syloxi silicon hairspring, high-performance Paraflex shock absorbers, bidirectional winding via a Perpetual rotor, and a power reserve of approximately 55 hours. Precision is rated at -2/+2 seconds per day after casing, and the movement carries Superlative Chronometer certification — combining COSC standards with Rolex's own post-casing verification.
The watch rides on an 18kt white gold President bracelet composed of semi-circular three-piece links and secured by a concealed folding Crownclasp, making reference 279139RBR-0012 a thoroughly considered expression of Rolex's Lady-Datejust lineage.
