Trying to find where to get gasket same thickness like in this watch?

Hi ,
I was in the process of disassembling the caliber 552 inside this omega 14761 and have everything apart from the right gasket! Have dozens of them but nothing like what is in this piece.

Measuring is not a problem but the original in this case seems to be as thicker covering both sides of th case back lip! All omega gaskets I have are thinner!
Does anyone know or has seen this gasket as in the image attaved as anything I have seen is not as thick!

I don’t mind keeping what is there to be honest, but I can’t clean the case properly without removing it and damaging it! Please chime in with any information, advice ! Thanks

I did a seach at Cousins and it comes up with this:
The gasket you have it probably just squished to a square shape.

thank you for responding and for your effort in retrieving this information. I have this gasket new but somehow it looks so much thinner.


Thank you for also reassuring this!! t looks like it was never changed from all the service marks in the back case. I know some of the old gaskets are no longer available, such as the yellow ones, originally found in the case backs and especially the older thicker divers ones ( other brands)