The guys at XS11.com have a tutorial on doing the bezel removal.
Basically, you make a small screwdriver like tool, and start lifting the crimp on the back side of the bezel, going around and around until the crimp is bent up 90 deg. Then you can remove the works and repair or replace. When you put it back together, the bent up flange is bent back down, a little at a time, around and around.
Think wire edging in reverse for removal, and regular wire edging for replacing
With careful work, it is not noticeable from the face when replaced on the bike.
CZ
