Released in 1976, the Cal. 7111 with design code 948 was part of Seiko's domestic market collection. Powered by the 7111 caliber with 18j jewels beating at 21,600 bph, it delivers a 39 hours power reserve. [seikata-wm-0b0a17b0b14e]
Also known as: Sumo, Baby Tuna
