Released in 1974, the Cal. 6328 with design code 840 was part of Seiko's domestic market collection. Powered by the 6328 caliber with 28j jewels beating at 28,800 bph, it delivers a 56 hours power reserve. [seikata-wm-a2154aa8d0e2]
Also known as: Goldfeather, Golden Tuna
