Mantis M2 bezel turns itself

[Nick Ruberg]

HI everyone.
I am trying out a Mantis M2 and after about 3-4 dives I saw that the bezel had turned about 90deg. Try as hard as I could, it wouldn't turn back. I even tried doing this at a depth of about 38m (maybe it was pressure related). Eventually when I got home I tried again using a towel for better grip and I can now do it, albeit with some difficulty.

I am wondering if anyone else has seen this and whether this will likely be a problem. Maybe sealing?

Thanks,

 

[somemightsay]

AFAIK the bezel is press fitted to the housing, the lens do the sealing.