Swiss Rolex Datjust 278278 Yellow Gold strap Silver Dial 31MM

31mm 18K yellow gold case, screw-down crown with twinlock double waterproofness system, fluted bezel, 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 reserve, 18K yellow gold Oyster bracelet with flat three-piece links, concealed folding Crownclasp buckle. Waterproof to 100 meters.