Citizen Cosmotron X8 postscript
Those of you who read the recent account of the restoration of an early Citizen Cosmotron X8 electric watch may …
Tag Archives: Cosmotron
The world’s first transistorised electronic balance movement: The Citizen Cosmotron X8
The heart of every mechanical watch movement is the balance, whose role is to control the release of power from …
Adventures in Amateur Watch Fettling 