Omega Pre-owned Speedmaster 3570.50 Wristwatch — used (very good) condition, ranked A: a few traces of usage with some scratches/dirt but overall in very good condition; accessories: none; serial number 77**7616. Polished maintenance; glass, dial, hands, case, bezel, crown, case back and bracelet show insignificant or no scratches/deterioration. Wrist size set to 17cm (6.69''); total weight 140g (4.93oz). Key attributes: Black | Stainless steel | Durable stainless steel construction | Polished finish | Manual winding mechanical movement | Lightweight — 140 g total weight | Chronograph | Manual winding movement | Black dial | 42mm case diameter | Stainless steel case and bracelet | Sport style | Dimensions & fit: Standard fit — fits wrist circumference approx 17cm (6.69''). | Composition & care: Stainless steel | Wipe with a soft cloth; avoid prolonged water exposure; have the mechanical movement serviced regularly by a qualified watchmaker.