Released in 1997, the Cal. 5279 with design code 525 was part of Seiko's domestic market collection. Powered by the 5279 caliber with 23j jewels beating at 21,600 bph, it delivers a 52 hours power reserve. [seikata-wm-a0a7d79a69dd]
Also known as: Sportsmatic, Baby Tuna
