Marvin S Sun
This skeleton movement is based on the Mavin 700 caliber. It is an old manual caliber that is not anymore in production for many years. It appeared in the 60s. Its main features are:
- 17 jewels.
- 46 hours of power reserve.
- 21600 alternations, or 3 Herz.
Here is a 3D model of the movement. You can rotate it and zoom in as you want to see it.