Dial is good, install is substandard.
This dial was never supposed to be installed on its own, without the proper base plate with feet. The maker of these dials specificaly stressed this, and any other corner cutting method like this one will produce similar results and potentialy re-appear its ugly head in the future.
Double side tape "fix" isn't really a fix.
See if you can find a spare rep Pam sausage dial somewhere. Damaged, scratched etc dial is just fine. Base plate of a sandwich dial is also OK, even better as it would provide better thickness fit once the top and bottom are glued together.
Post a WTB for one here on the forum, also any half-decent dealer should be able to source you one for some $20-30 or so.
In case of spare sausage dial, sand down the top paint layer, stop once you get to the brass metal underneath. Polish the top with 600-800 grit sand paper or even finer. Make sure the finish is even.
I would use bottom plate of sandwich dial if I were you, simply because the thickness of it is just right. Detach the two layers, clean the bottom plate from glue and sand the residual lume markers. If sausage dial is only dial sort you can find, you may need to sand it a little bit more untill you reach the 'correct' thickness, its trial and error basicaly.
Take then your watch and the base plate you've just prepared to your watchmaker...he will basicaly know where to from there. If you decide to do DIY job, and stull in doubt, you know my PM, I'm happy to assist.
...and please don't just end up glueing the top dial plate to the underside of the mov't, it's not just bad practice, it's not on at all :wink:
Good luck!