Rolex Yellow Gold Datejust 31 Watch - Diamond Bezel - Silver Diamond Six Dial - President Bracelet - 278288RBR sdr6p31mm 18K yellow gold case, screw down crown with twinlock double waterproofness system, bezel set with 46 diamonds, scratch resistant sapphire crystal with cyclops lens over the date, silver diamond Roman IV dial, Roman numerals with 11 diamonds set on VI, Rolex calibre 2236 automatic movement with center hour, minute and seconds hands, instantaneous date with rapid setting, and stop seconds for precise time setting, approximately 55 hours of power