Rolex Datejust 31mm Watch 178278 sip

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 VI dial, index hour markers, Rolex calibre 2235 automatic movement, President bracelet with semi-circular three-piece links, concealed folding Crownclasp buckle. Waterproof to 100 meters.