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MODEL CASE
Oyster, 40 mm, Oystersteel
OYSTER ARCHITECTURE
Monobloc middle case, screw-down case back and winding crown
DIAMETER
40 mm
MATERIAL
Oystersteel
BEZEL
Smooth
WINDING CROWN
Screw-down, Twinlock double waterproofness system
CRYSTAL
Green sapphire, scratch-resistant
WATER RESISTANCE
Waterproof to 100 metres / 330 feet
MOVEMENT
Perpetual, mechanical , self-winding , with a magnetic shield to protect the movement
CALIBRE
3131, 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 Oysterclasp with Easylink 5 mm comfort extension link
