44mm 18 kt yellow gold case with screw-down case back and winding crown, Triplock triple waterproofness winding crown, bidirectional rotatable 60-minute graduated bezel with blue Cerachrom insert in ceramic and moulded recessed graduations and numerals coated with gold, scratch-resistant sapphire crystal, white dial with highly legible Chromalight display and long-lasting blue luminescence, calibre 4162 Manufacture Rolex perpetual mechanical self-winding movement with paramagnetic blue Parachrom hairspring and Paraflex shock absorbers, centre hour and minute hands with small seconds at 6 o'clock and programmable countdown with mechanical memory and on-the-fly synchronization plus stop-seconds function, approximately 72 hours power reserve, Oyster three-piece solid link 18 kt yellow gold bracelet with folding Oysterlock safety clasp and Easylink 5 mm comfort extension, waterproof to 100 metres / 330 feet, Superlative Chronometer certified. Precision: -2/+2 seconds per day after casing.