Rolex 226570 bk 42mm Oystersteel case, screw-down back, screw-down crown with twinlock double waterproofness system, fixed bezel with 24-hour graduations, scratch-resistant sapphire crystal with cyclops lens over the date, black dial, hour markers set with blue Chromalight, Rolex calibre 3285 self-winding movement with second time-zone hour hand and instantaneous date, approximately 70 hours of power reserve, Oyster bracelet with flat three-piece links, folding Oysterlock buckle with Easylink 5mm comfort extension link. Waterproof to 100 meters.