Released in 1977, the Cal. 5681 with design code 323 was part of Seiko's domestic market collection. Powered by the 5681 caliber with 19j jewels beating at 21,600 bph, it delivers a 70 hours power reserve. [seikata-wm-9dfd0f6d5f74]
Also known as: Silverwave, Goldfeather
