Omega Caliber 863Brand Omega Caliber Number 863 Base Caliber 861 Base Base Lemania 1873 Movement Type Manual wind Lignes 12”’ Diameter 27mm...Mechanical 413
Omega Caliber 1863The Omega cal. 1863 found in the Speedmaster. "Famous manual-winding chronograph movement that was used on the Moon. Rhodium-plated finish." -OmegaMechanical 1112
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