Seiko Skyliner 21 Jewels 6100-8000, made in 1968 Winding the mainspring and time adjustment confirmed Overhauled, adjusted to gain 10 seconds per day on a flat surface Daily operation confirmed Exterior and glass polished as much as possible. Case size: 36mm wide, 42mm long, 10mm thick Original band, size approximately 18cm 【A579-101000】 Overhauled items have been disassembled, cleaned, lubricated, and defective parts replaced by dedicated mechanics. Ready 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. There may also be scratches that do not appear in the photos. *Please check the condition of the item in the images. We will pack the item as securely as possible, but in the unlikely event of damage upon arrival, we will provide proper repair service, so please purchase with confidence.