Released in 1981, the Cal. 7053 with design code 804 was part of Seiko's domestic market collection. Powered by the 7053 caliber with 20j jewels beating at 21,600 bph, it delivers a 40 hours power reserve. [seikata-wm-deb4eec4e3f9]
Also known as: Sportsmatic, Baby Tuna
