A Grand Seiko 5646-7000 from June 1970: the third generation automatic Grand Seiko
The first automatic Grand Seiko was fitted with a refined evolution of the 603 calibre, first introduced with the Seikomatic …
The first automatic Grand Seiko was fitted with a refined evolution of the 603 calibre, first introduced with the Seikomatic …
Adventures in Amateur Watch Fettling 