Released in 1979, the Cal. 6162 with design code 820 was part of Seiko's domestic market collection. Powered by the 6162 caliber with 30j jewels beating at 28,800 bph, it delivers a 41 hours power reserve. [seikata-wm-e8fad1b0e1f6]
Also known as: Sumo, Bellmatic
