A Citizen Crystron men's quartz watch released in 1979. The day and date calendar can be adjusted by pulling the crown out one step. Time adjustment is done by pulling the crown out two steps. The band is an aftermarket stainless steel band. Wrist size: Approximately 18cm Body size: W: 35 mm x 40 mm (including lugs) Thickness: 9 mm Regarding the condition, there may be omissions in the description, so please comment if you have any concerns. Appearance: I think it's in good condition. 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 the loss of packages. 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 via Kuroneko Yamato or Yu-Pack cash on delivery, with the buyer paying the shipping costs. If you wish to use the above shipping methods, please be sure to let us know before purchasing. We will change the listing and relist it. Changes cannot be made after purchase, so it will be shipped via Nekopos. If you purchase as is, we will assume that you have purchased with the understanding of the risk of loss during shipping, so please understand. Antique Vintage Old Retro Space Age Watch watch vintage SEIKO CITIZEN Rare Rare Showa Retro Rare