Monobloc middle case, screw-down case back and winding crown
DIAMETER
42 mm
MATERIAL
Oystersteel
BEZEL
Fixed, 24-hour graduated
WINDING CROWN
Screw-down, Twinlock double waterproofness system
CRYSTAL
Scratch-resistant sapphire, Cyclops lens over the date
WATER-RESISTANCE
Waterproof to 100 metres / 330 feet
MOVEMENT
Perpetual, mechanical, self-winding
CALIBRE
3187, Manufacture Rolex
PRECISION
-2/+2 sec/day, after casing
FUNCTIONS
Centre hour, minute and seconds hands. 24-hour display. Second time zone with independent rapid-setting of the hour hand. Instantaneous date. 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 Easylink 5 mm comfort extension link
DIAL
White
DETAILS
Highly legible Chromalight display with long-lasting blue luminescence
CERTIFICATION
Superlative Chronometer (COSC + Rolex certification after casing)
