Omega Speedmaster Professional 。Brand OMEGA Model Speedmaster Professional Galaxy Express 999 Gender Men\'s Material Stainless Steel / Stainless Steel Dial color black Movement Hand Winding Ref Number 3571.50 Serial Number 77026*** Functions Chronograph、Small seconds Accessories 1 Extra Link (0.8cm/0.3inch) Case size About 42mm (1.7inch) (not including the crown) Wrist size About 17 + 0.8cm (6.7 + 0.3 inch) Lugs width 20mm(0.8 inch) Keeping time -9 sec/day(measured value)　※Reference value State of the wound Glass Light scratch, Small hit Scratch Case Light scratch, small wound, dent(at 2 o\'clock , at 3 o\'clock ) Bezel Light scratch, small wound Belt/Bracelet a few scratch, small wound Hand Little damage, a few stain Dial Little damage Buckle a few scratch, small wound CL Number 905403　 369 250912 AT Condition Rank Body rank AB Belt/Bracelet rank AB+ 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.