Rolex 279139rbr dkgdp Lady-Datejust 28mm 18K white gold case, screw-down back, screw-down crown with twinlock double waterproofness system, bezel set with 44 brilliant-cut diamonds, scratch-resistant sapphire crystal with cyclops lens over the date, dark grey dial, diamond hour markers, Rolex calibre 2236 perpetual self-winding movement with centre hour, minute and seconds hands, instantaneous date with rapid setting, and stop-seconds for precise time setting, approximately 55 hours of power reserve, President bracelet with semi-circular three-piece links, concealed folding Crownclasp buckle.