Had the same issue with my HR case. I am a rookie however, this is what I did to resolve the problem.
1- separate the bezel, retainer and spring from the crystal.
2- clean the adhesive from the case
3- Insert the crystal into the case the fit should be tight and need pressure to press on, mine was loose so I replaced it with a Clarks that was very tight.
4- install with retainer over the crystal this should be very tight, in my case I had to sand down the inside of the retainer ring so it would seat all the way to the case.
5- Re install the bezel, problem corrected.
Here is a picture of what the new crystal looks with the retaining ring the crystal is now rock solid and the bezel functions as it should
Good luck man
Respect GS16610