Released in 1966, the Cal. 6636 with design code 174 was part of Seiko's domestic market collection. Powered by the 6636 caliber with 17j jewels beating at 21,600 bph, it delivers a 50 hours power reserve. [seikata-wm-f5b3ec7f1b6a]
Also known as: Pogue, Golden Tuna
