40mm stainless steel case, screw-down back, screw-down crown, smooth bezel, scratch resistant green sapphire crystal, intense black dial, Chromalight hour markers, Rolex calibre 3131 automatic movement with a magnetic shield, approximately 48 hours of power reserve, stainless steel Oyster bracelet with flat three-piece links, folding Oysterclasp buckle with Easylink 5mm comfort extension link. Waterproof to 100 meters.