This is the Seiko 5931-5310 Credor. ■Seiko Credor is a Japanese luxury dress watch brand. Founded in 1974, its brand name means "Golden Peak." ■Condition: Tested and working. There are some scratches and stains. Please see photos for details. Band Size: One size fits all (adjustable up to approximately 20 cm) ※※There may be slight discrepancies between wrist size and watch band length. Thank you for your understanding. ★★★Features: ■Credor watches are engraved with a logo called the "Crest Mark." This represents the three peaks of "Sensibility," "Technology," and "Skill," and the "Golden Peak" is expressed as a "mountain." ★★★Shipping: To ensure the highest quality, the product will be carefully packaged and shipped in a box. We generally ship via DHL or Japan Post. ※※Customs duties may be incurred upon delivery to your local area, so please be aware of this. *Your country's customs or delivery company may contact you by phone or email regarding customs clearance. Please make sure you are available to answer the phone. We sincerely hope that your item arrives safely and that you are satisfied. We appreciate your understanding and cooperation to ensure a smooth transaction.