Selection :
Black
# m226659-0000
Model case
Oyster, 42 mm, white gold
Material
18 kt white gold
Winding crown
Screw-down, Triplock triple waterproofness system
Oyster architecture
Monobloc middle case, screw-down case back and winding crown
Bezel
Cerachrom Bidirectional rotatable 60-minute graduated bezel with matt black Cerachrom insert in ceramic, polished raised numerals and graduations
Crystal
Scratch-resistant sapphire, Cyclops lens over the date
Diameter
42mm
Water resistance
Waterproof to 100 metres / 330 feet
Movement
Perpetual, mechanical chronograph, self-winding
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
Calibre
4131, manufacture Rolex
Winding
Bidirectional self-winding via Perpetual rotor
Precision
-2/+2 sec/day, after casing
Power reserve
Approximately 72 hours
Bracelet
Flexible metal blades overmoulded with high-performance elastomer
Material
Oysterflex
Dial
Black
Details
Highly legible Chromalight display with long-lasting blue luminescence
Certification
Superlative Chronometer (COSC + Rolex certification after casing)