Released in 1973, the Cal. 6653 with design code 938 was part of Seiko's domestic market collection. Powered by the 6653 caliber with 26j jewels beating at 21,600 bph, it delivers a 52 hours power reserve. [seikata-wm-0e17c0ecc8e8]
Also known as: Silverwave, Golden Tuna
