Omega Geneve holder ring (166.0098 - cal 1481)

Good evening,

I acquired an Omega Genève to restore. A calibre 1481 (Ref 34731224) in a 166.0098 case.
I am desperately looking for an holder ring because the current one is completely cobbled/stuck (it’s surely the cause of the breakdown because I see the glue spilling everywhere). Do you know where I can buy this part or do you know a solution? I can also machine this part without any problem, but the difficulty lies in having the measurements or a technical drawing 😔. If someone can measure or this kind of information, I can offer them a machined copy in addition to a big thank you!
Here is a photo of my watch as well as the part I am looking for.

Thank you in advance to the whole community🙃 !

Thank you for this information and advice Archer.

I am searching on the internet with these references and terms. For the moment, I have not found it yet! At worst, I will go see a Omega certified watchmaker.

An additional question;
Given that the 1481 was developed with Tissot, could this Tissot movement spacer of the caliber 2481 be suitable?