Omega Pre-owned Speedmaster 3521.80 with a striking blue dial, automatic chronograph and day-date functions. Condition: Used (very good) — described as Excellent; Rank A Used (a few traces of usage; some scratches/dirt can be seen but overall in very good condition). Maintenance: Polished. Accessories: None. Glass: No scratches. Dial: Insignificant wear. Hands: Slight scratches. Case, bezel, crown, case back, bracelet: Insignificant scratches. Key attributes: Blue | Stainless steel | Chronograph | Day-date function | Self-winding (automatic) movement | Blue dial | 39 mm case diameter | Sport style | Polished stainless steel case and bracelet | Dimensions & fit: Wrist size: 16.5 cm / 6.49'' | Case diameter: 39 mm / 1.54'' | Total weight: 110 g / 3.88 oz | Composition & care: Stainless steel (case and bracelet) | Wipe with a soft cloth. Avoid strong chemicals and prolonged exposure to water. Have the movement serviced by a professional as needed.