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Model case:Oyster, 40 mm, white gold
Oyster architecture:Monobloc middle case, screw-down case back and winding crown
Diameter:40 mm
Material:18 ct white gold
Bezel:Black monobloc Cerachrom bezel in ceramic with moulded tachymetric scale
Winding crown:Screw-down, Triplock triple waterproofness system
Crystal:Scratch-resistant sapphire
Water resistance:Waterproof to 100 metres / 330 feet
Movement:Perpetual, mechanical chronograph, self-winding
Calibre:4131, manufacture Rolex
Precision:-2/+2 sec/day, after casing
Functions:Centre hour and minute hands, small seconds hand at 6 o'clock. Chronograph via centre seconds hand, 30-minute counter at 3 o'clock and 12-hour counter at 9 o'clock. Stop seconds for exact time setting
Oscillator:Paramagnetic blue Parachrom hairspring. High-performance Paraflex shock absorbers
Winding:Bidirectional self-winding via Perpetual rotor
Power reserve:Approximately 72 hours
Bracelet:Oysterflex
Material:Flexible metal blades overmoulded with high-performance elastomer
Clasp:Folding Oysterlock safety clasp with Rolex Glidelock extension system
Dial:Bright black and steel
Details:Highly legible Chromalight display with long-lasting blue luminescence
Certification:Superlative Chronometer (COSC + Rolex certification after casing)