This is a Seiko 7830-5210. ■Condition: Working ■Manufactured in the 1970s. As this watch is approximately 40 years old, please refer to the photos for details. ■Band Size: Approximately 20cm (see images) ■Case Size: 32mm W x 34mm H Its square shape makes it a highly sought-after collector's item. ★★★Shipping Information: To ensure the highest quality, the watch will be carefully packaged and shipped in a box. We generally ship via DHL or Japan Post. ※※Please note that customs duties may be incurred upon delivery to your local area. Please be aware of this. ※You may receive phone calls or emails from your country's customs office or shipping company regarding customs clearance. Please make sure you are available to answer the phone. We sincerely hope that your item arrives safely and to your satisfaction. We appreciate your understanding and cooperation in ensuring a smooth transaction.