Rolex Lady-Datejust 28 mm

Rolex Lady-Datejust 28 mm, reference 279173-0006, has a 28 mm case in steel and gold. The fluted bezel is also gold, screwed to the case in the manner of Rolex's original waterproofing design. A sapphire crystal with a Cyclops lens sits over the date, and the silver dial is read with a central seconds hand. Inside is the calibre 2236, a self-winding movement with a power reserve of approximately 55 hours and Rolex's own certification as a chronometer. The screw-down crown is part of that arrangement. The bracelet is steel and gold on a folding Oysterclasp fitted with the Easylink comfort extension link. The case holds a 100 metre water resistance rating.