Released in 1972, the Cal. 6138 with design code 489 was part of Seiko's domestic market collection. Powered by the 6138 caliber with 18j jewels beating at 28,800 bph, it delivers a 52 hours power reserve. [seikata-wm-e9744a4e0eae]
Also known as: Goldfeather, Golden Tuna
