Released in 1988, the Cal. 5673 with design code 462 was part of Seiko's domestic market collection. Powered by the 5673 caliber with 36j jewels beating at 21,600 bph, it delivers a 38 hours power reserve. [seikata-wm-1f1e7f6f6313]
Also known as: Tuna, Sportsmatic
