Released in 1983, the Cal. 5255 with design code 957 was part of Seiko's domestic market collection. Powered by the 5255 caliber with 18j jewels beating at 21,600 bph, it delivers a 57 hours power reserve. [seikata-wm-cfcf34eae3e2]
Also known as: Sportsmatic, Baby Tuna
