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MODEL CASE
Oyster, 44 mm, Oystersteel
OYSTER ARCHITECTURE
Monobloc middle case, screw-down case back and winding crown
DIAMETER
44 mm
MATERIAL
Oystersteel
BEZEL
Bidirectional rotatable Ring Command bezel. Blue Cerachrom insert in ceramic, moulded numerals and inscription
WINDING CROWN
Screw-down, Triplock triple waterproofness system
CRYSTAL
Scratch-resistant sapphire
WATER RESISTANCE
Waterproof to 100 metres / 330 feet
MOVEMENT
Perpetual, mechanical, self-winding, regatta chronograph
CALIBRE
4161, Manufacture Rolex
PRECISION
-2/+2 sec/day, after casing
FUNCTIONS
Centre hour and minute hands, small seconds hand at 6 o'clock. Programmable countdown with mechanical memory and on-the-fly synchronization. Stop-seconds for precise time setting
OSCILLATOR
Paramagnetic blue Parachrom hairspring
WINDING
Bidirectional self-winding via Perpetual rotor
POWER RESERVE
Approximately 72 hours
BRACELET
Oyster, flat three-piece links
BRACELET MATERIAL
Oystersteel
CLASP
Folding Oysterlock safety clasp with Easylink 5 mm comfort extension link
