scratches on crystal

Thread: scratches on crystal

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  1. #1
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    scratches on crystal

    guys,

    I got a scratch on the crystal of my watch over the weekend. any recos on how to get them out.

    thanks,
    Robb H

  2. #2
    Member Nick1016's Avatar
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    Re: scratches on crystal

    Which watch model is it, and what type of crystal? And how deep is the scratch?

  3. #3
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    Re: scratches on crystal

    it is a citizen aqualung duplex

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  5. #4
    Member T Bone's Avatar
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    Re: scratches on crystal

    Not sure, but I think that is a mineral crystal.

    We've had some posts on removing scratches from sapphire crystal with a couple different grits/mesh's of diamond paste. I am planning to attempt the same with a mineral crystal on an O&W in the very near future (my paste took it's time arriving, but did get here). I think it may work, but also depends on the depth of the scratch etc. (Do a search on this Forum about scratched crystals, you should find the post w/links to the procedures posted).
    Regards, T Bone.

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  6. #5
    Member captobvious's Avatar
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    Re: scratches on crystal

    Yep, diamond polishing paste is your answer. I've had wonderful luck working out even deep scratches on a mineral crystal. What worked like a charm was putting some of the courser compound on a steel wool pad on my Mouse palm sander. That took the scratches out quickly and cleanly, then I just needed to hand polish the crystal with the finer grades of diamond paste. The whole thing took less than a half hour once I figured out the process. Of course, it helped that the crystal stood up past the bezel on the watch, but with careful masking I'm sure this would work well for most applications.

  7. #6
    Member Nick1016's Avatar
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    Re: scratches on crystal

    Others beat me to it. Captobvious's advice seems great, but whatever you do, definitely don't try and cut any corners or work too fast. I'm very cautious with this stuff, but I think if the scratch is shallow and relatively superficial, I would skip the palm sander and just work by hand.

  8. #7
    Member captobvious's Avatar
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    Re: scratches on crystal

    Power tools can be great, but moderation and patience is key. If it is a relatively shallow scratch hand polishing will probably work fine. As mentioned, the above procedure was for a badly damaged crystal. Rotary tools like a Dremal can work but it is very easy to make the crystal very hot, potentially damaging the seals. The sander does not have this problem in my experience. I should also mention this was a small detail sander, not a big belt sander. That would be bad!

  9. #8
    Member Nick1016's Avatar
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    Re: scratches on crystal

    Quote Originally Posted by captobvious View Post
    I should also mention this was a small detail sander, not a big belt sander. That would be bad!
    I think this might qualify as the understatement of the week!

  10. #9
    DOXA Forum Moderator subkrawler's Avatar
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    Re: scratches on crystal

    Quote Originally Posted by Nick1016 View Post
    I think this might qualify as the understatement of the week!
    They don't call him Captain Obvious for nothing.
    "The most beautiful objects are those built for purpose. Few things are more thrilling than the unrestrained use of tools most have mistaken for luxuries" -unknown

  11. #10
    Member por44's Avatar
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    Re: scratches on crystal

    Automobile Clear Coat Compound and the gentle touch of your Dremel (low speed). Think of yourself as a want-to-be dentist.

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