Rolex Lady-Datejust 28 mm

The Rolex Lady-Datejust 28 mm, reference 279138RBR-0031, has an 18 ct yellow gold case measuring 28 mm across. The bezel is set with brilliant-cut diamonds, giving this a place among Rolex's gem-set pieces. A Cyclops lens sits over the date on the scratch-resistant sapphire crystal, above a white lacquered dial. Inside is calibre 2236, a self-winding mechanical movement with a Syloxi hairspring and a power reserve of about 55 hours, certified as a Superlative Chronometer. The date function runs alongside central hour, minute and seconds hands. The gold President bracelet closes with a concealed folding Crownclasp, also in yellow gold. Rolex rates the case to 100 metres.