Released in 1996, the Cal. 4580 with design code 789 was part of Seiko's domestic market collection. Powered by the 4580 caliber with 23j jewels beating at 28,800 bph, it delivers a 56 hours power reserve. [seikata-wm-3dd3b04f0cb5]
Also known as: Sportsmatic, Baby Tuna
