Seiko Grand Seiko Hi-Beat 5646-8000 Navy Blue Dial, 1971 With Medallion, Hacking Function ⚫︎OH (Overhauled), Polished, Glass Replaced ⚫︎Winding the mainspring, time adjustment, date and day of the week change without problems ⚫︎With Medallion ⚫︎Adjusted to gain about 10 seconds per day when placed flat Case size: 36mm wide, 43mm long, 10mm thick New leather band Shipping method: Yamato Takkyubin Compact 【A496-107000】 For items that have been OH (overhauled), they are disassembled, cleaned, and lubricated by a dedicated mechanic, and defective parts are replaced. They are in a condition suitable for everyday use. The exterior has been polished as much as possible. We take care not to dull the edges. There will inevitably be some scratches and dents that cannot be removed. Also, there may be scratches that do not appear in the photos. There is black staining on the dial. *Please check the condition of the product in the images. We will pack the item as carefully as possible, but in the unlikely event of damage upon arrival, we will provide proper repair service, so please purchase with confidence. 【Warranty】 Returns are not accepted for vintage watches, but we offer a 1-month operational warranty. *Malfunctions due to impact or submersion may result in paid repairs.