Released in 1996, the Cal. 6654 with design code 656 was part of Seiko's domestic market collection. Powered by the 6654 caliber with 36j jewels beating at 21,600 bph, it delivers a 60 hours power reserve. [seikata-wm-e6e4d0ebca13]
Also known as: Sportsmatic, Baby Tuna
