Omega Speedmaster Date 3211.31 321131 40mm Silver Dial 。Brand OMEGA Model Speedmaster Gender Men\'s Material Stainless Steel / Stainless Steel Dial color Silver / Black Movement Automatic Ref Number 3211.31 Serial Number 8166**** Functions Date、Chronograph、Small seconds Accessories No accessories Case size About 40mm (1.6inch) (not including the crown) Wrist size About 16cm (6.3 inch) Lugs width 19mm(0.7 inch) Keeping time +9 sec/day(measured value)　※Reference value State of the wound Glass No damage Case few scratch Bezel few scratch Belt/Bracelet few scratch Hand No damage Dial No damage Buckle few scratch CL Number 863749　 075 250109 YY Condition Rank Body rank A+ Belt/Bracelet rank SA Condition RANK Explanation N [Mint] Item has never been used. S [Beautiful] Item is like new withvery slight signs of use. A [Excellent] Item has clearly been used,but has no significant scratches or wear. AB [Great] Item has slight surface scratches or slight wear,but looks great. B [Good] Item shows scratches or wear that is visible when worn on wrist. BC [Fair] Item is not in perfect working order or slightly damaged. C [Poor] Item cannot be used as-is.Repair needed or used as parts.