Reference 279171-0004 presents the Lady-Datejust in a 28mm round case crafted from Everose Rolesor, pairing Oystersteel with Everose gold throughout both the case and the three-piece solid-link Oyster bracelet. The Oyster architecture incorporates a monobloc middle case, a solid screw-down case back, and a screw-down winding crown with Twinlock double waterproofness, delivering water resistance to 100 metres. A scratch-resistant sapphire crystal with a Cyclops lens over the date completes the case.
The chocolate dial is set with diamonds in 18 kt gold settings, while the Roman IX numeral is rendered in 18 kt gold and further set with 8 diamonds — a detail that balances classic Datejust typography with striking brilliance. The fixed bezel frames the dial with equal elegance, and the Folding Oysterclasp with Easylink 5 mm comfort extension link ensures a secure and adjustable fit on the wrist.
Powering the watch is Rolex's Calibre 2236, a perpetual mechanical self-winding movement featuring a Syloxi silicon hairspring with patented geometry and Paraflex shock absorbers. It delivers a precision of -2/+2 seconds per day after casing, earns Superlative Chronometer designation through both COSC and Rolex certification, and offers approximately 55 hours of power reserve. This example is unworn and presented as a complete set with original Rolex box and Rolex papers.
