Omega 310.20.42.50.02.001
Omega 310.20.42.50.02.001 detail 1
Omega 310.20.42.50.02.001 detail 2
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Omega Speedmaster series, model: 310.20.42.50.02.001, 42mm in diameter, ceramic tachometer bezel, chronograph function, equipped with the 3861 manual mechanical movement with a transparent back.