Rolex Lady-Datejust 28 mm

Rolex's Lady-Datejust 28 mm, reference 279138RBR-0001, is cased in 18 ct yellow gold. The case measures 28 mm across, with a bezel set with 44 brilliant-cut diamonds. A sapphire crystal with a Cyclops lens sits over the date, and the silver dial is set with diamonds, including a Roman IX numeral picked out in eight stones. Inside is the Rolex calibre 2236, a self-winding mechanical movement with a Syloxi hairspring and a power reserve of approximately 55 hours; the watch is certified as a Superlative Chronometer. A screw-down crown protects the movement, and the date function is complemented by a central seconds hand. The watch is fitted to a President bracelet in yellow gold with a concealed folding Crownclasp. Rolex rates the case to 100 metres.