Released in 1973, the Cal. 3859 with design code 478 was part of Seiko's domestic market collection. Powered by the 3859 caliber with 27j jewels beating at 28,800 bph, it delivers a 49 hours power reserve. [seikata-wm-5a1b2d6f1d32]
Also known as: UFO, Baby Tuna
