※ Please be sure to read the profile. I also have a good stock of vintage and antique watches. Please take a look → #nekoneko ● Product Name: SEIKO SPORTSMAN Calendar Manual Winding EGP Case Back Cover Crane Mark S Mark Crown 17 Jewels Made in Japan 1963 18000 vibrations Low beat ● Case width: Approximately 38mm (including the crown) Lug width: Approximately 19mm (Please forgive some errors) ● This is a Seiko Sportsman Calendar from 1963. The Sportsman was a manual winding wristwatch that combined stable performance and practicality, and was popular at the time as a model with high cost performance. As a new design to improve production efficiency, the Sportsman series integrated the base plate, shortening and simplifying the assembly time to reduce the selling price. The basic design of the Sportsman was later inherited by the Sportsmatic Five. ● I have checked the operation before listing, and it is running vigorously when the crown is turned. The daily difference is measured on a flat surface with a timegrapher, with an accuracy of +6 seconds to +7 seconds. (The daily difference may vary depending on the posture change, usage conditions, the remaining amount of the mainspring, and other factors, so please consider it as a reference. It does not guarantee accuracy) ● There may be scratches and stains that cannot be completely captured in the photos. The evaluation of the item is my subjective opinion, so there may be individual differences. Please refer to the description and photos and consider it. ● Shipping will be done as quickly as possible and with careful packaging.