Released in 1992, the Cal. 5261 with design code 971 was part of Seiko's domestic market collection. Powered by the 5261 caliber with 32j jewels beating at 36,000 bph, it delivers a 58 hours power reserve. [seikata-wm-6e5b4f3d7aa6]
Also known as: Helmet, Golden Tuna
