Released in 1973, the Cal. 5617 with design code 245 was part of Seiko's domestic market collection. Powered by the 5617 caliber with 34j jewels beating at 28,800 bph, it delivers a 51 hours power reserve. [seikata-wm-384d1e5e1c4c]
Also known as: Samurai, Sportsmatic
