Gasket question for c-case Constellation

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Hello, I'm trying to replace the gasket for my Constellation (168.029).
I know that the diameter is 31.6mm for this one and it requires a thicker gasket.
I see a 0.80mm and a 1.00mm for sale on Jules Borel but curious which one would suit the best for this watch?

Thanks in advance!
 
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I have been using 0.8mm generic gaskets myself, however I also do somewhat doubt the claimed dimensional accuracy of my particular box of gaskets.
 
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Get the 0.80mm gasket, it's the one listed by Cousins.
 
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Get the 0.80mm gasket, it's the one listed by Cousins.

Thanks Jim. Btw, the generic seconds hands you recommended me arrived today and it works like a charm.