Open the back cover of the watch with your fingernail and look for identifying names -- a magnifying glass or loupe may be necessary. A Waltham pocket watch will have A.W.W. Co. and Waltham, Mass. on the movement, which is the inner workings of the pocket watch. This will also include the grade of the watch.

Where is the serial number on a Waltham watch?

All Waltham pocket watches have a serial number stamped on the movement (the works) inside the watch. The serial number can be checked against an online Waltham pocket watch list, which will give the approximate year of manufacture. Waltham pocket watch serial numbers can be accessed by opening the case back.

How do I check my Tag Heuer serial number?

Where can I find my TAG Heuer watchs serial number? Every single Tag Heuer watch that leaves the factory is engraved with the reference number and the serial number on the caseback. If the watch has a see-through case back, it will be engraved on the edge of the caseback.