Rolex Lady-Datejust 28 mm

The Rolex Lady-Datejust 279160-0008 is a steel watch measuring 28 mm across. The case is domed at the bezel and finished in steel throughout. Inside runs the calibre 2236, a perpetual, self-winding movement built by Rolex with a Syloxi hairspring and a power reserve of approximately 55 hours. A scratch-resistant sapphire crystal covers the silver dial, with a Cyclops lens set over the date. The watch is a chronometer, certified to Rolex's own Superlative Chronometer standard, and it combines central seconds with a screw-down crown for added security. It is fitted to a steel Oyster bracelet with a folding Oysterclasp and an Easylink comfort extension link. The screw-down crown, part of the Twinlock system, helps hold the case to its 100 metre water resistance rating.