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Clean GMT Master II Crystal Gasket rework

germanynrw

Renowned Member
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5/11/22
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Germany
Guys one stupid question, which one is the crystal ring? It cost as gen most like 250-400€ .
 

TokyoBlonde

Do not accept unsolicited offers
8/4/24
6
1
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There is one solution in the post immediately above yours. Personally I keep an assortment of gaskets on hand and pick the one that produces the best level of date magnification as the first priority with crystal sitting height as a close second goal.

Which crystal gasket should I use?

Crystal gasket shave - DIY

I'm in the same situation. I have a Pepsi CF GMT V3 and got myself a gen crystal. I took it to a watch maker who told me it won't fit. I didn't ask him if he tried the CF gasket or the gen one (not sure the gasket was in the package, but I think so).

If I understand your other post correctly, I should find a 3.1 mm or a 2.85mm gasket for the gen crystal?
 

xZeroCoolx

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22/10/22
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I'm in the same situation. I have a Pepsi CF GMT V3 and got myself a gen crystal. I took it to a watch maker who told me it won't fit. I didn't ask him if he tried the CF gasket or the gen one (not sure the gasket was in the package, but I think so).

If I understand your other post correctly, I should find a 3.1 mm or a 2.85mm gasket for the gen crystal?
I have had the best luck using a 2.7mm gasket with the gen crystal. Seems to have the most accurate date magnification to me.
 

TokyoBlonde

Do not accept unsolicited offers
8/4/24
6
1
3
I have had the best luck using a 2.7mm gasket with the gen crystal. Seems to have the most accurate date magnification to me.

What about the concern that it won't fit? And where should I look for gaskets? Ebay?
 

xZeroCoolx

Active Member
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22/10/22
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Esslinger or Cousins UK, buy 1 from each if you are concerned about fitment.
 

Platomates

Getting To Know The Place
5/6/23
83
27
18
Singapore
I'm planning to use a sub 40mm VSF crystal. Please advice gasket brand and height to achieve 2.5x magnification.
 

Cubatobaco

Horological Specimen
Supporter
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24/6/24
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VA
I have a gen crystal, bezel, click spring, hydro ring, and insert on the way. Just bought a 2.7mm gasket in hopes that it will complete the install. Can't wait!
 
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