Rolex Lady-Datejust 28 mm

The Rolex Lady-Datejust 28 mm, reference 279178-0004, comes in 18 ct yellow gold with a case measuring 28 mm across. The fluted bezel is a Rolex signature detail and gives the case its characteristic finish. A sapphire crystal with a Cyclops lens sits over the date, and the silver dial is set with diamonds, including a Roman IX marked with 8 stones. Inside is the self-winding calibre 2236, a chronometer-certified movement with a Syloxi hairspring and a power reserve of approximately 55 hours. The date function runs alongside central seconds, and the screw-down crown offers added protection against moisture. A Jubilee bracelet in matching yellow gold closes with a concealed folding Crownclasp. The screw-down crown and case together keep the Lady-Datejust water resistant to 100 metres.