41 mm Oystersteel case. Screw-down winding crown with Twinlock double waterproofness system. Smooth Oystersteel bezel. Scratch-resistant sapphire crystal with Cyclops lens over the date. Bright blue dial. Perpetual, mechanical, self-winding Calibre 3235 Manufacture Rolex, with paramagnetic blue Parachrom hairspring, Paraflex shock absorbers, and bidirectional self-winding via Perpetual rotor. Functions: centre hour, minute and seconds hands; instantaneous date with rapid setting; stop-seconds for precise time setting. Power reserve approximately 70 hours. Oyster bracelet with three-piece solid links in Oystersteel. Folding Oysterclasp with Easylink 5 mm comfort extension link. Waterproof to 100 metres / 330 feet. Superlative Chronometer certified.