This is the Seiko Silverwave 7121-7010. This men's quartz wristwatch was manufactured in the 1980s and features an analog movement. ■Condition: Working There is some wear, but it is in relatively good condition. Please refer to the photos for details. Band Size: Approximately 16-16.5cm ■Historical Significance The Seiko Silverwave series was produced for approximately 20 years, from its launch in 1962 to the late 1980s, and is an important symbol of the development of Japanese watchmaking. ■The history of Silverwave began with the "62 Silverwave" in 1962. The early models were among the first waterproof watches in Japan to feature an integrated rotating bezel. This achieved 50M water resistance, the luxury standard at the time, and established its position as a waterproof watch. ★★★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 once the product arrives in your local area, so please be aware of this. *You may receive phone or email calls from your country's customs office or delivery company regarding customs clearance. Please make sure you can answer the phone. We sincerely hope that your product arrives safely and that you are satisfied. We appreciate your understanding and cooperation in order to ensure a smooth transaction.