这是附加信息
Model case
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Model case
Oyster, 40 mm, Oystersteel
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Oyster architecture
Monobloc middle case, screw-down case back and winding crown
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Diameter
40 mm
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Material
Oystersteel
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Bezel
Black monobloc Cerachrom bezel in ceramic with moulded tachymetric scale
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Winding crown
Screw-down, Triplock triple waterproofness system
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Crystal
Scratch-resistant sapphire
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Water resistance
Waterproof to 100 metres / 330 feet
Movement
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Movement
Perpetual, mechanical chronograph, self-winding
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Calibre
4131, manufacture Rolex
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Precision
-2/+2 sec/day, after casing
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Functions
Centre hour and minute hands, small seconds hand at 6 o'clock. Chronograph via centre seconds hand, 30-minute counter at 3 o'clock and 12-hour counter at 9 o'clock. Stop seconds for exact time setting
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Oscillator
Paramagnetic blue Parachrom hairspring. High-performance Paraflex shock absorbers
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Winding
Bidirectional self-winding via Perpetual rotor
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Power reserve
Approximately 72 hours
Bracelet
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Bracelet
Oyster, three-piece solid links
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Material
Oystersteel
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Clasp
Folding Oysterlock safety clasp with Easylink 5 mm comfort extension link
Dial
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Dial
White, black counter rings
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Details
Highly legible Chromalight display with long-lasting blue luminescence