Released in 1995, the Cal. 6689 with design code 253 was part of Seiko's domestic market collection. Powered by the 6689 caliber with 23j jewels beating at 36,000 bph, it delivers a 38 hours power reserve. [seikata-wm-a2b3b83c80d7]
Also known as: Sportsmatic, Bellmatic
