Omega Pre-owned Speedmaster 3510.50 Wristwatch. Used (very good) — Rank A: a few traces of usage but overall in very good condition. Insignificant scratches on glass, hands, case, bezel, crown, case back and bracelet; dial shows no deterioration. Polished; accessories: None. Wrist size 17 cm; total weight 100 g. Serial number 53**4004. Key attributes: Black | Stainless steel | Self-winding (automatic) movement | Chronograph | Black dial | 39 mm case diameter | Sport style | Polished finish | Stainless steel bracelet | Dimensions & fit: Fits wrist size approximately 17 cm (6.69") | Composition & care: Stainless steel (case) | Stainless steel (bracelet) | Wipe with a soft cloth. Avoid strong impacts and prolonged water exposure. Service movement by a qualified watchmaker as needed.