This is a Seiko 5 Sportsmatic automatic watch (6619-8100) released by Seiko in 1966. The day can be corrected by pressing the crown. Body size: Width 37 x Height 42 mm, Thickness 11 mm (Width does not include the crown) An aftermarket stainless steel band is attached. Wrist size: Approximately 18.5cm. The current daily rate is running at approximately ±1 minute when laid flat. It is basically operating within the accuracy described, but the overhaul history is unknown, so please consider this as a guide only. Also, as it is an old item, there may be errors in accuracy depending on the environment, position, and temperature after purchase. Regarding the accuracy after arrival, please accept an error of ±5 minutes as within the acceptable range. Please understand that this is a purchase on the premise of maintenance. Regarding the condition, there may be omissions in the description, so please comment if there are any areas of concern. Appearance: There are slight scratches on the case and some damage to the dial, but I think it is in good condition with a vintage feel. We have not performed a waterproof test, so we cannot guarantee water resistance. Regarding the shipping of watches and small items: We will cover the shipping costs only for shipping via Yamato's Nekopos. However, we are not responsible for any loss or damage to the package. The compensation for loss in the case of Nekopos is 3000 yen. There is no further guarantee. The difference after deducting the compensation will not be returned. If you wish to avoid the risk of loss, we will ship by Kuroneko Yamato or Yu-Pack cash on delivery at the buyer's expense. If you wish to use the above shipping method, please be sure to let us know before purchasing. We will change it and relist it. Changes cannot be made after purchase, so it will be shipped by Nekopos. If you purchase it as is, we will assume that you have purchased it with the understanding of the risk of loss during shipping, so thank you for your understanding. Antique Vintage Old Retro Space Age Watch watch vintage SEIKO CITIZEN Rare Rare Showa Retro Rare