【Also available on Mercari Shops - shop followers get a 20% discount coupon. #nekoneko → Filter → Seller → Shop (Mercari Shops) to go to Nekoneko-do's Mercari shop】 Also selling vintage and antique watches. → #nekoneko *Please read the description and profile before purchasing. ●Product Name: SEIKO Chronos Self Data Made in Japan 【Overhauled】Hand-wound 21 jewels, made in the 1960s Blue frame calendar, silver sunray dial Bar indexes New leather strap by BAMBI ★★★Overhauled in May 2025. (Cost ¥20,000) ●Case width: approx. 38mm (including crown) Lug width: approx. 18mm (Please allow for some error) ●SEIKO Chronos was named after Chronos, the god of time. The first model was born in 1958 as a watch that surpassed the "Marvel," and many models were released in the 1960s as SEIKO's main product. It is also the ancestor of hand-wound wristwatches from Daini Seikosha, and it became the basis for the later KING SEIKO 1st. Less than a year after its release, the 19-jewel Crown from Suwa Seikosha appeared, and to surpass it, this Self Data with a 21-jewel movement and calendar was released. ●The combination of a beautiful silver dial with a radial finish, multifaceted bar indexes, and dolphin hands with emphasized edges is a delicate construction with attention to detail. The "Seiko Cronos Self Dater" logo written in cursive creates a calm, antique atmosphere. ●The crystal, hands, and indexes are in very good condition for a vintage watch of this era. The dial has a certain texture, but it does not significantly affect visibility. Please check the other photos. ●Overhauled. The daily rate is +16 seconds to +21 seconds when measured flat with a timegrapher, which is sufficient accuracy for a vintage watch. (Please consider this as a reference only, as it may vary depending on posture changes, usage conditions, the remaining amount of the mainspring, and other factors) ●There may be scratches and stains that cannot be fully captured in the photos. Also, the evaluation of the item is my subjective opinion, so there may be individual differences. Please refer to the description and photos and consider before purchasing.