Never a good idea!
A commercial diver friend of mine, went diving with his crown out. How that happened remains undetermined, but this is the result. As you can see by the bezel, it is well used! (as a hammer)
I had to basically throw everything except the case, and just renewed it for him.
I pried the movement out, as it welded itself to the case, is the reason for the broken bits. Could save nothing anyway.
As arrived to Aegir Watches and the last few , as going back to the customer