Released in 1973, the Cal. 4411 with design code 512 was part of Seiko's domestic market collection. Powered by the 4411 caliber with 24j jewels beating at 21,600 bph, it delivers a 51 hours power reserve. [seikata-wm-d59e8d27a3f4]
Also known as: Tuna, Baby Tuna
