Seiko | Accessories | Seiko Brights Mechanical Chronograph 。Brand SEIKO Model Brights mechanical Gender Men\'s Material Stainless Steel/Gold Plated / Stainless Steel Dial color black Movement Automatic Ref Number SDGZ012/8R48-00A0 Serial Number 520*** Functions Date、Chronograph、Small seconds Accessories 3 Extra Link (3.3cm/1.3inch) Case size About 44mm (1.7inch) (not including the crown) Wrist size About 16 + 3.3cm (6.3 + 1.3 inch) Lugs width 20mm(0.8 inch) Keeping time +3 sec/day(measured value)　※Reference value State of the wound Glass Light scratch Case Light scratch, small wound Bezel Many scratch, small wound, crack(at 6 o\'clock , at 10 o\'clock , at 11 o\'clock ) Belt/Bracelet few scratch Hand No damage Dial No damage Buckle a few scratch, Genuine product CL Number 834727　JP 155 240923 TS 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.