Released in 1971, the Cal. 4580 with design code 970 was part of Seiko's domestic market collection. Powered by the 4580 caliber with 17j jewels beating at 28,800 bph, it delivers a 61 hours power reserve. [seikata-wm-d9ea83e0f4c2]
Also known as: Bellmatic, Golden Tuna
