De Ville Linen dial - bezel case opening question

I’ve had the below watch for some time now, it came as part as lot and is missing a bezel.
However I have no idea how to open the case.
It doesn’t look like the back screws off and I can’t see any joins - the case looks like it’s one piece.

Im assuming you have to remove the crystal and crown and do it from the front?

Any ideas what model it is and if I can source a bezel from omega?

Thanks in advance

As per the script on the back of your watch, you need a crystal extractor TOOL 106. Example of 107 as shown below. Sorry, I don't have 106.

Wow in a parts lot? That deville is certainly worthy of saving. I suppose once the case number is known you might be able to catch a similar empty case complete with bezel as I see used empty cases online from time to time. I don't know if you have any contacts in Hong Kong but on any given night in Kowloon there are outside markets where a few guys set up stands selling Rolex and Omega used empty stainless cases. I presume the movements were pirated from the Omegas to go into more valuable references, and with Rolex for clone sports watch cases.

Thanks for all of the responses.

@janice&fred - I have family in HK, although won’t be visiting for a while.
Would ideally like to find a bezel, but I guess the odds of that are very slim!

Yeah got it as part of 3 watch lot, although the auction had the omega as the main part of the lot. But for me it was the below (auction house photos 😀 )

I’m currently housekeeping, creating a list of my watches...I can’t believe how many I have...yeah there will be plenty here who have significantly more. But I think it’s time to have a clear out and am quite enjoying the process of traveling through emails etc.

Oh yea baby I'm likin it !