Omega Pre-owned Speedmaster 321.10.44.50.01.001 Wristwatch — a 44mm sport wristwatch with a black dial and self-winding chronograph movement. Condition: Used (very good) — Rank A: a few traces of usage; glass, dial and hands show no scratches; case, bezel, case back and bracelet show only insignificant scratches; polished. Includes guarantee card, inner box, outer box, manual and pictogram; purchased in 2015. Key attributes: Black | Stainless steel | Self-winding (automatic) movement | Chronograph function | Date display | Stainless steel bracelet | Polished finish | 44mm round case | Black dial | Sport style | Dimensions & fit: Standard fit; bracelet adjustable by removing links | Composition & care: 100% stainless steel (case and bracelet) | Wipe with a soft cloth. Avoid strong magnets and harsh chemicals. Have serviced by a qualified watchmaker periodically; adjust bracelet by removing links.