Rolex Lady-Datejust 28 mm

The Rolex Lady-Datejust 28 mm, reference 279138RBR-0019, is cased in 18 ct yellow gold at 28 mm across. The case follows Rolex's Oyster architecture, with a monobloc middle case and screw-down back and crown. A sapphire crystal with a Cyclops lens sits over the date, and the bezel is set with diamonds. Inside is the calibre 2236, a self-winding mechanical movement with a Syloxi hairspring and roughly 55 hours of power reserve; Rolex certifies it as a Superlative Chronometer. The silver dial is itself set with diamonds. This is a dress watch built for jewellery-grade presentation. It is fitted to a President bracelet in yellow gold with a concealed folding Crownclasp, and the case carries a 100 metre water resistance rating.