Enter a Seth Thomas movement serial number to identify the corresponding model.
How to Find the Serial Number on Your Pocket Watch
The serial number for the mechanism can be found in a number of different locations on the top plate, around the perimeter or in the central area of the movement depending on the specific model; but if a movement has a serial number, it is ALWAYS on the mechanism, NEVER on the watch case. Model 10 and Model 11 Seth Thomas movements have no serial numbers. Some Seth Thomas Model 12 and Model 13 movements have no serial number, and some do have a serial number.
How to Open Pocket Watch Cases
This is a video demonstration of how to open four styles of Pocket Watch Cases including hunting case, open-face hinged back and bezel, open-face screw back and bezel, and open-face tilt-out case.