This is the Seiko Grand Quartz 9256-5020. This model was released in 1978. Condition: Tested and working. As it is approximately 50 years old, there are scratches and stains. The dial shows discoloration. Please see the photos for details. ■Band Size: Approximately 18-18.5cm (Please refer to the images.) ※※There may be slight discrepancies between wrist size and watch band length. Thank you for your understanding. ★★★Features: ■Movement: Caliber 9256 is a twin quartz movement developed by Daini Seikosha. ■Production Period: This caliber 9256 was produced for only three years. An extremely rare model. ■Accuracy: Dual quartz is used to compensate for the effects of temperature changes on accuracy. It boasts high accuracy of approximately ±10 seconds per year. ■Design: While most products have standard circular cases, the 9256-5020 features an unusual square case. ★★★Shipping: To ensure the highest quality, the product will be carefully packed and shipped in a box. We generally ship via DHL. ※※Customs duties may be incurred once the product arrives in your local area, so 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 can answer the phone. We sincerely hope that your product arrives safely and that you are satisfied with it. We appreciate your understanding and cooperation in order to ensure a smooth transaction.