Clarification in I and L ring crystal gaskets

[dman2112]

Hello all

In watching Marks excellent videos on crystal replacement I still am not sure on sizing the gasket based on a crystal you already have, but do not want to use or don't have access to, the OEM gasket.

My question is that if I wish to purchase an I ring gasket, say for example a 315 as measured crystal, and say the gadget seat ID measures 322, do I order just a 322x 315? Or do I order a 322 x314 so the crystal has .1 of compression ? What are the general rules of thumb to use as a "starting point". This would be in the context of a sapphire or mineral crystal in a diver with an I or L ring. I'm good with the methods of other crystal types. Thanks in advance

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[jdm]

Do not calculate compression. Just add the gasket width to crystal width, sum has to be case width. Diver, sapphire, gasket type doesn't matter.

Edited August 15, 2016 by jdm

[dman2112]

Perfect. Thank you very much Jdm

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