This is the Seiko Brightz Kinetic 5J21-0A80. This is a Kinetic (automatic quartz) watch. ■Condition: Operation confirmed There are some minor scratches, but overall it is in relatively good condition. There is some wear and tear. ■Crystal: No noticeable scratches. Bezel: Minor scratches. Please refer to the photos for details. ■Band size: Approximately 17.5cm (see images) ※※There may be slight differences in wrist size and watch band length. Thank you for your understanding. ★★★The name "Brightz" is a combination of "Bright," meaning "intelligent and shining," and "Z," meaning "constant pursuit." ★★★Features: Seiko's unique power generation system ■Automatic quartz Instead of a button battery, the built-in generator rotates with the movement of your arm to generate electricity. Electricity Storage ■ The generated electricity is stored in the Kinetic E.S.U. (Electric Storage Unit). This eliminates the need for battery replacement. ■ Auto Relay The power save function stops the hands and reduces energy consumption when the watch is left stationary for a certain period of time. Shake the watch again to automatically reset it to the correct time. ※※Please note that the actual product may show signs of use, scratches, or slight discoloration due to the shooting environment. ★★★Shipping Information: To ensure the highest quality, products are carefully packaged and shipped in a box. We usually ship via DHL. ※※Please note that customs duties may be incurred upon delivery to your destination. ※※Your country's customs or shipping company may contact you by phone or email regarding customs clearance procedures. Please be sure to answer the phone. We sincerely hope that your product arrives safely and to your satisfaction. Thank you for your understanding and cooperation in ensuring a smooth transaction.