The Sub-C is made for 29mm dials, the dial opening is >27,5mm.
So that's a no-go...
Secondly putting a friction type bezel is most likely possible, but there will be lot of trial and error and will most likely not end too well...
If I were you, contact TigerConcept, if I remember correctly one of his old no-cg cases had a smaller dial opening and old possibly fit your dial... Also... Plexi is much easier to accomodate also friction type bezel...
Or why not use a HR 5513/5517 case? Shave the dial outer diameter and make a fantasy Milsub?
The possibilities are endless, but ask yourself... In which end to start? The dial is complicated in several ways. 1) Fantasy 2) 0,5mm too large for 5512/3 cases.
Good luck, just ask if there's anything I can help with,