Where did you swap the dial ? It looks like a little bit dust
So this is my JJF dial swapped onto a PF.
Looks like something is happening with my dial. Look at the grooves near the center of the hands. Is it oil leaking out from the pinion? Or is the dial metal corroding below the paint?
What is happening here?
Did you just notice this maybe? Could be black paint dust from the hands or pinion possibly?