Monobloc middle case, screw-down case back and winding crown
DIAMETER
42 mm
MATERIAL
Yellow Rolesor - combination of Oystersteel and 18 ct yellow gold
BEZEL
Fluted, bidirectional rotatable Rolex Ring Command
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, dual time zones, annual calendar
CALIBRE
9001, Manufacture Rolex
PRECISION
-2/+2 sec/day, after casing
FUNCTIONS
Centre hour, minute and seconds hands. 24-hour display on off-centre disc. Second time zone. Instantaneous annual calendar at 3 o'clock and rapid-setting of the date. Month display via 12 apertures around the circumference of the dial. 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 72 hours
BRACELET
Oyster, flat three-piece links
BRACELET MATERIAL
Yellow Rolesor - combination of Oystersteel and 18 ct yellow gold
CLASP
Folding Oysterclasp with Easylink 5 mm comfort extension link
DIAL
Champagne-colour
DETAILS
Highly legible Chromalight display with long-lasting blue luminescence
CERTIFICATION
Superlative Chronometer (COSC + Rolex certification after casing)