This Omega Pre-owned Speedmaster 3575.20 Wristwatch pairs a sport design with a manual-winding mechanical chronograph movement. Condition: Used (very good). Rank A Used — a few traces of usage; glass, dial and hands show no scratches; case, bezel, case back and bracelet show insignificant scratches; crown shows no scratches. Polished finish. Accessories: None. Key attributes: White | Silver | Stainless steel; 18K white gold (case) | Manual-winding mechanical movement | Chronograph timing | Moon phase complication | Date display | Chronograph | Date | Moon phase | Manual winding (mechanical) | Silver dial | 42mm case diameter | Sport style | Polished finish | Stainless steel bracelet | Dimensions & fit: Adjustable bracelet | Bracelet can be resized to fit different wrist sizes | Composition & care: Wipe with a soft cloth; avoid exposure to moisture and strong magnetic fields; service mechanical movement regularly by a qualified watchmaker.