Released in 1975, the Cal. 5257 with design code 759 was part of Seiko's domestic market collection. Powered by the 5257 caliber with 30j jewels beating at 21,600 bph, it delivers a 51 hours power reserve. [seikata-wm-4d02a6ed4ef2]
Also known as: Goldfeather, Baby Tuna
