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Model: 331.10.42.51.01.001
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Series: Speedmaster ’57
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Case Diameter: 41.5 mm
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Case Material: Stainless Steel
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Bezel: Stainless Steel with tachymeter scale
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Dial: Black with recessed hour markers, two sub-dials (small seconds at 9 o’clock, chronograph 12-hour and 60-minute counters at 3 o’clock), date at 6 o’clock
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Strap/Bracelet: Stainless steel bracelet with folding clasp
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Crystal: Domed sapphire with anti-reflective treatment on both sides
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Caseback: Sapphire exhibition caseback
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Movement: Omega Caliber 9300, automatic, Co-Axial Chronograph, column wheel
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Functions: Hours, minutes, small seconds, date, chronograph
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Power Reserve: ~60 hours
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Water Resistance: 100 meters / 330 feet
