Released in 1971, the Cal. 6172 with design code 181 was part of Seiko's domestic market collection. Powered by the 6172 caliber with 36j jewels beating at 21,600 bph, it delivers a 49 hours power reserve. [seikata-wm-1d1c139bf3c4]
Also known as: Goldfeather, Golden Tuna
