I am looking for the small "hand nut" for a Schatz 400 day anniversary clock. It is the movement with 53 on the back plate. I don't know if other Schatz 400 day clocks use the same size nut or not. Any help or advice about where I might get one is appreciated. Thanks.

I'm pretty sure I have one. Please post photo of backplate or Terwilliger reference.
Ken

Interesting older post. Found this when I was searching for the same part.

This picture shows the hand nut that I need: