Description TECHNICAL DATA CASE Oyster, 44 mm, Oystersteel Oyster architecture: Monobloc middle case, screw-down case back and winding crown. Rolex Ringlock System case architecture with Helium escape valve Diameter: 44 mm Material: Oystersteel Bezel: Unidirectional rotatable 60-minute graduated, scratch-resistant Cerachrom insert in black ceramic, numerals and graduations coated in platinum Winding crown: Screw-down, Triplock triple waterproofness system Crystal: Domed, 5.5 mm-thick scratch-resistant sapphire Water resistance: Waterproof to 3,900 metres / 12,800 feet, helium escape valve MOVEMENT Movement: Perpetual, mechanical, self-winding Caliber: 3235, Manufacture Rolex Precision: -2/ 2 sec/day, after casing Functions: Centre hour, minute and seconds hands. Instantaneous date with rapid setting. Stop-seconds for precise time setting Oscillator: Paramagnetic blue Parachrom hairspring. High-performance Paraflex shock absorbers Winding: Bidirectional self-winding via Perpetual rotor Power reserve: Approximately 70 hours BRACELET Bracelet: Oyster, three-piece solid links Material: Oyster steel Clasp: Folding Oysterlock safety clasp with Rolex Glidelock extension system DIAL Dial: Intense black Details: Highly legible Chromalight display with long-lasting blue luminescence
