Chronograph movements have always fascinated me. Recently, I read the following article, which provides a detailed deconstruction of the Vaucher 6710 movement: www.thenakedwatchmaker.com The article begins by claiming that "The VMF 6710 is the most sophis...
The hour counters on the 7750, speedmaster movements, etc… are of this type. As is the minutes counter on Patek's mono-pusher chronograph movement. It seems crude, but works. ...