MODEL CASE
Oyster, 40 mm, Oystersteel
OYSTER ARCHITECTURE
Monobloc middle case, screw-down case back and winding crown
DIAMETER
40 mm
MATERIAL
Oystersteel
BEZEL
Unidirectional rotatable 60-minute graduated, scratch-resistant Cerachrom insert in ceramic, numerals and graduations coated in platinum
WINDING CROWN
Screw-down, Triplock triple waterproofness system
CRYSTAL
Scratch-resistant sapphire
WATER-RESISTANCE
Waterproof to 300 metres / 1,000 feet
MOVEMENT
Perpetual, mechanical, self-winding
CALIBRE
3130, Manufacture Rolex
PRECISION
-2/+2 sec/day, after casing
FUNCTIONS
Centre hour, minute and seconds hands. Stop-seconds for precise time setting
OSCILLATOR
Paramagnetic blue Parachrom hairspring
WINDING
Bidirectional self-winding via Perpetual rotor
POWER RESERVE
Approximately 48 hours
BRACELET
Oyster, flat three-piece links
BRACELET MATERIAL
Oystersteel
CLASP
Folding Oysterlock safety clasp with Rolex Glidelock extension system
DIAL
Black
DETAILS
Highly legible Chromalight display with long-lasting blue luminescence
CERTIFICATION
Superlative Chronometer (COSC + Rolex certification after casing)