Crystal replacement

[KayMan]

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

[jdrichard]

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.

[KayMan]

Thanks, no bezel ring on this design so I guess dry insertion is the way to go.  Cheers

[jdrichard]

My advice...wait for a few more comments:)

[eccentric59]

I've never used any lubricant. After all, it's supposed to be a "friction fit".

[watchweasol]

Hi I would consider       JD's advice . they are a dry fit but be sure you get it all square and seated correctly before applying pressure the last thing you need is a bent/crushed gasket.