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Caseback Gasket


danielv2000

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Let me preface this by saying I have never risked doing any sort of repairs on my watches other than tightening a loose rotor or changing an insert.

Today, I opened one my new purchases and noticed that the gasket was not inside the groove. As much as I tried, it's simply "stretched out" and won't go back in.

My questions are:

1. Am I correct in my assumption that it needs to be changed? It looks in great condition but won't fit in.

2. What's the best source for a replacement?

Thank you

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You can use a speed lubricator that has two foam pads impregnated with silicone grease. Just throw the gasket in and give it a twist.

Some also use fomblin to lubricate gaskets and well as the case threads.

I have looked for these. Where do you find it?

Thanks

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You can find them in watch material houses, eBay, or amazon. I bought one from amazon but the silicon is way too sticky. I bought one from one of the material houses and it was this exact one:

http://aeroconsystems.com/cart/o-ring-speed-lubricators/model-2.5-747-speed-lubricator/

It works well but will dry out over time. If you don't need it often, you are better off with a sealed tube or tub of silicon.

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