Reference 279171-0010 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 chocolate dial is dressed with Roman numerals, while a scratch-resistant sapphire crystal with a Cyclops lens over the date keeps everything legible. The Oyster architecture features a monobloc middle case, solid case back, and a screw-down winding crown with Twinlock double waterproofness, delivering water resistance to 100 metres / 330 feet. The bracelet fastens via a folding Oysterclasp with an Easylink 5mm comfort extension link.
Inside beats the Calibre 2236, a perpetual mechanical self-winding movement produced by Manufacture Rolex. It offers a power reserve of approximately 55 hours, bidirectional winding via a Perpetual rotor, and a Syloxi silicon hairspring with patented geometry alongside Paraflex shock absorbers. The movement carries Superlative Chronometer certification — combining COSC testing with Rolex's own post-casing standard — achieving a precision of -2/+2 seconds per day. Functions include centre hour, minute, and seconds hands, an instantaneous date with rapid setting, and stop-seconds for precise time setting.
This example is unworn and comes as a complete set, including the original Rolex box and Rolex papers.
