Omega Pre-owned Speedmaster 3511.50 Wristwatch. Condition: Used (very good) — Rank A Used: a few traces of usage; some scratches/dirt can be seen but overall in very good condition. Glass scratches: None; Dial, hands, case, bezel, case back and bracelet: insignificant; Crown scratches: None. Maintenance: Polished. Accessories: None. Wrist size: 17.5cm / 6.88''; Total weight: 110g / 3.88oz. Key attributes: Black | Stainless steel | Self-winding (automatic) movement | Chronograph | Date display | Stainless steel bracelet | Polished finish | Black dial | Sport style | 39mm case diameter | Dimensions & fit: Regular watch fit | Composition & care: Stainless steel (case) | Stainless steel (band) | Wipe with a soft cloth. Avoid prolonged exposure to moisture. Have movement serviced regularly by an authorized watchmaker.