The CHRONOMASTER Open offers a view of the beating heart of the El Primero movement from the dial. Crafted in a sleek 39.5mm steel case, this version features a matte black dial with tricolour counters and a transparent counter for the running seconds, paired with an integrated steel bracelet. Powered by the El Primero 3604 1/10th of a second automatic chronograph movement.
Product Specification
Specification
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Model #033300360421M3300
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Water Resistance100 Meters
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Item No.12205993
Movement
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Movement TypeAutomatic
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FunctionsChronograph, Date, Power Reserve, Luminous Hands
Dial
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Dial ColorBlack
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Dial MarkerIndex / Stick
Case
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Case Size39.5mm
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Case MaterialStainless Steel
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ShapeRound
Strap
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Band MaterialStainless Steel
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Band ColorSilver
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Clasp TypeTriple Folding








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