31mm Oystersteel case, screw-down back, screw-down crown with twinlock double waterproofness system, domed bezel, scratch-resistant sapphire crystal with cyclops lens over the date, black dial, Roman numerals, Rolex calibre 2236 perpetual self-winding movement with date at 3 o'clock, approximately 55 hours of power reserve, Oystersteel Oyster bracelet with flat three-piece links, concealed folding Oysterclasp buckle. Waterproof to 100 meters.