Reverend Rob
Posted October 13, 2018 - 11:46am
The 'Wig-Wag' is a different movt, called the Champagne 19-4. This one (28-20) is called a Pendule because the bumper system uses a pendulum style weight. This is similar to the very first winding systems designed and used in pocket watches of which Breguet is an excellent example. (1780)
This is the 'Wig-Wag':



