Released in 1986, the Cal. 5689 with design code 286 was part of Seiko's domestic market collection. Powered by the 5689 caliber with 31j jewels beating at 21,600 bph, it delivers a 57 hours power reserve. [seikata-wm-f5f4c27b0b69]
Also known as: Baby Tuna, Arnie
