An experimental idea comes to mind:
Use Stroke effect with settings that essentially create a dot moving along the path, render out, then track the dot, apply the motion to a null, attach hand to null.
There will undoubtedly be some large jumps that mess up the tracking, but you can go and do a fairly large search area and then track as far as you can, fix position manually when coming to something the tracker can’t handle, and keep going.
Possibly want to do some smoothing for the hand animation so it doesn’t jump in one frame from one side of the image to the other. Although that is not necessarily an issue since the usual style is speeded-up in any case.