Released in 1980, the Cal. 5251 with design code 361 was part of Seiko's domestic market collection. Powered by the 5251 caliber with 22j jewels beating at 21,600 bph, it delivers a 51 hours power reserve. [seikata-wm-4a6e1df8d9ab]
Also known as: Baby Tuna, Flighty
