Rolex Lady-Datejust 28 mm

The Rolex Lady-Datejust 28 mm, reference 279163-0011, has a 28 mm case in steel and gold. The case carries a domed bezel and a screw-down crown, with a sapphire crystal and a Cyclops lens over the date. The champagne dial is set with diamonds, in 18 ct gold settings, and sits above a self-winding Calibre 2236 movement with a power reserve of approximately 55 hours. This is a chronometer, certified as a Superlative Chronometer after casing. Central seconds and a date display are the main functions. The bracelet is steel and gold, fitted with a concealed folding Crownclasp. The screw-down crown, with its double waterproofness system, holds the case to a 100 metre rating.