41mm Oystersteel case, monobloc middle case with screw-down case back and winding crown, screw-down crown with Twinlock double waterproofness system, smooth bezel, scratch-resistant sapphire crystal with Cyclops lens over the date, bright blue dial with sunray finish and index hour markers, highly legible Chromalight display with long-lasting blue luminescence, Rolex calibre 3235 perpetual self-winding movement with centre hour, minute and seconds hands, instantaneous date with rapid setting, stop-seconds for precise time setting, paramagnetic blue Parachrom hairspring with high-performance Paraflex shock absorbers, approximately 70 hours of power reserve, Oystersteel Oyster bracelet with three-piece solid links, folding Oysterclasp with Easylink 5mm comfort extension link. Waterproof to 100 metres / 330 feet. Superlative Chronometer certified.