IWC Aquatimer Chronograph Edition 。Brand IWC SCHAFFHAUSEN Model Aquatimer Expedition Charles Darwin Gender Men\'s Material bronze / rubber Dial color black Movement Automatic Ref Number IW379503 Serial Number 6076*** Functions Date、Chronograph、Small seconds Accessories Guarantee(card) Case size About 45mm (1.8inch) (not including the crown) Wrist size About 20.5cm (8.1 inch) Lugs width 22mm(0.9 inch) Keeping time -4 sec/day(measured value)　※Reference value Guarantee information 2018/9/20 State of the wound Glass a few scratch (coating ) Case Light scratch, small wound Bezel Light scratch, small wound Belt/Bracelet Light damage Hand No damage Dial No damage Buckle Light scratch CL Number 826620　JP 080 241015 YY Condition Rank Body rank B Belt/Bracelet rank B 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.