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Gender
Men
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Model Size
40 mm
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Material
18 ct yellow gold
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Dial
White
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Collection
Day-Date
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Reference
228238
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Bezel
Fluted
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Water-Resistance
Waterproof to 100 metres / 330 feet
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Movement
mechanical, Perpetual, self-winding
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Caliber
3255, Manufacture Rolex
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Power Reserve
Approximately 70 hours
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Bracelet
President, semi-circular three-piece links
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Certification
Superlative Chronometer (COSC + Rolex certification after casing)
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Simple Material
Gold
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Spec Oyster Architecture
Monobloc middle case, screw-down case back and winding crown
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Winding Crown
Screw-down, Twinlock double waterproofness system
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Crystal
Cyclops lens over the date, Scratch-resistant sapphire
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Precision
-2/+2 sec/day, after casing
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Oscillator
Paramagnetic blue Parachrom hairspring. High-performance Paraflex shock absorbers
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Escapement
Chronergy with optimized energy efficiency
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Winding
Bidirectional self-winding via Perpetual rotor
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Clasp
Concealed folding Crownclasp
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Size
Large size
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Dial Color
Light dial
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Bracelet Material
18 ct yellow gold
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Background-color
Gold
