Omega Pre-owned Speedmaster 3511.50 Wristwatch combines sport styling with a self-winding chronograph for everyday wear. Condition: Used (very good) — Rank A (a few traces of usage); maintenance: polished; accessories: none; glass: no scratches; dial, hands, case, bezel, crown, case back and bracelet: insignificant traces of wear. Key attributes: Black | Stainless steel | Automatic movement | Chronograph | Date function | Self-winding (automatic) movement | Sport style | 39mm case diameter | Black dial | Stainless steel bracelet | Dimensions & fit: Fits wrist size approx. 17.5 cm (6.88") | Composition & care: 100% Stainless steel | Wipe with a soft cloth. Avoid chemicals and strong magnetic fields. Professional servicing recommended for mechanical movement.