Released in 1996, the Cal. 7139 with design code 336 was part of Seiko's domestic market collection. Powered by the 7139 caliber with 23j jewels beating at 28,800 bph, it delivers a 65 hours power reserve. [seikata-wm-e60b90c8e88e]
Also known as: Goldfeather, Golden Tuna
