Screw Down Crown and Water Proofing Question

Thread: Screw Down Crown and Water Proofing Question

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  1. #1
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    Screw Down Crown and Water Proofing Question

    Hi All,
    I have a Deep Blue watch which has a triple o ring screw down crown system and was wondering if anyone had any information on how this system works? Any pics? It has the Miyota 9015. I called them but wasn't able to get much info from them. Thanks

  2. #2
    Member mistercoffee1's Avatar
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    Re: Screw Down Crown and Water Proofing Question

    I can't tell you if this is what the Deep Blue uses, but there are some great diagrams on this site:
    Where is WR failure most likely to occur?

  3. #3
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    Re: Screw Down Crown and Water Proofing Question

    That is a good thread. Thanks for the post. When I pull out my crown to adjust I can see the gasket inside it so I have to assume the other o rings are inside the tube? Can o rings in the crown usually be replaced if needed or would I need a new crown if the o rings were deformed?
    Last edited by sobole; July 5th, 2016 at 20:14.

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  5. #4
    Member sticky's Avatar
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    Re: Screw Down Crown and Water Proofing Question

    They were the drawings I was thinking of but unlike MC I failed to find them.

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