Omega Pre-owned Speedmaster 311.33.42.30.01.001 Wristwatch — a manual-winding sport chronograph with a 42mm black dial built for precise timing. 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: Insignificant; Dial scratches/deterioration: None; Hand scratches/deterioration: None; Case scratches: Insignificant; Bezel scratches: Insignificant; Crown scratches: None; Case back scratches: Insignificant; Band stains/dirt: Insignificant; Maintenance: Polished; Accessories: Inner box, Manual, Outer box, Replacement band; Wrist size: 15cm - 20cm / 5.9'' - 7.87''; Total weight: 80g / 2.82oz; Serial number: 78**7445. Key attributes: Black | Stainless steel (case); Leather (band) | Chronograph | Manual winding (mechanical) movement | Replacement band included | Includes inner box, outer box and manual | Black dial | 42mm case diameter | Sport style | Round polished case | Leather strap | Dimensions & fit: Standard fit | Composition & care: Stainless steel | Leather | Wipe case with a soft cloth. Avoid prolonged water exposure. Clean leather strap with a damp cloth and leather conditioner. Have movement serviced by a professional watchmaker.