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I’m refurbishing a Seiko 7T92-OJSO for which I have ordered the correct 36mm x 3mm thick crystal and gasket.  I have a crystal press but have yet to use it to push home a crystal into a crystal gasket so I have a question - should the crystal be pushed in dry or should I lubricate the gasket with silicone grease or similar first? TIA

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8 minutes ago, KayMan said:

I’m refurbishing a Seiko 7T92-OJSO for which I have ordered the correct 36mm x 3mm thick crystal and gasket.  I have a crystal press but have yet to use it to push home a crystal into a crystal gasket so I have a question - should the crystal be pushed in dry or should I lubricate the gasket with silicone grease or similar first? TIA

I would push it in dry as lubrication could allow it to slip out. If there is a bezel ring to hold in the crystal, then i would apply some silicone on the gasket.

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