1660 ≪Cleaned with ultrasonic cleaner and hand polishing.≫ ≪Working product.≫ This is a mechanical wristwatch from Seiko King Seiko. Based on measurements taken with a timegrapher: Parallel daily rate: +3s/d Amplitude: 305° Beat error: 1.5ms. The watch is running. This is a one-of-a-kind item, and it's first-come, first-served, so if you're interested, don't miss out! We will carefully package and ship with tracking. ・Product Condition (Please check with the photos.) 　Crystal (glass): Scratches - None noticeable 　Dial (face): Wear - Medium 　Bezel: Scratches - Small, Wear - Small 　Case back: Scratches - Small 　Belt: Scratches - Small, Wear - Small, Aftermarket ・Purchased from: Antique market * We guarantee authenticity, but in the unlikely event of a defect, we offer returns and refunds, so please purchase with confidence. ・Model number: L5.660.4 ・Main color: Silver ・Size: Approximately 3.8cm long x 3.3cm wide x 0.8cm thick (excluding the crown) ・Belt width: Approximately 1.8cm ・Wrist size: Approximately 19.2cm (Please be sure to check before purchasing.) ・Accessories: Watch only ⇒ We offer a follow-up discount. Please follow us and comment before purchasing! We will discount the price! Even with a discount, the first person to buy will be given priority, so we recommend immediate purchase if you definitely want the item. ⇒ Simultaneous purchase discount also available! We offer a great discount when purchasing 2 or more items (when shipped together) ◎ ★ For those considering other products, click here (you can narrow down the search by entering the brand name with a space.) #Click here for a list of all items byAC