Opening up a G-shock WR question.

Thread: Opening up a G-shock WR question.

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  1. #1
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    Opening up a G-shock WR question.

    I wanted to open up a G-shock to adjust the time setting screw posted in an earlier thread. My watch runs a little fast. Also down the road I will have to replace the battery in about 2 years, so it will have to be opened sooner or later. My question is, on my G-shock like many others, there are 4 screws holding the back on, one on each corner. If I take the back plate off and put it back on, will the watch still be WR to 200 meters? Even though I will snug the screws down as much as I can, I'm afraid it won't seal as good as when it left the factory? All those people who have taken off the back plate to change a battery, etc... is the watch still o.k. under water? Thanks.

  2. #2
    Member ecalzo's Avatar
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    Re: Opening up a G-shock WR question.

    in my watchmaker career i opened up some watches.....
    i'm not a pro but i have some skills..

    One of the watches i opened up it was a casio Protrek with 4
    screw back plateu...
    After...
    I used it for many years without any kind of trouble....

    The only thing i can recommend to you it is that you will have to tighteen
    the 4 screws following a cross sign...

    the first on the upper left corner the second the lowest right corner
    the third the upper right corner and the last the lower left corner....
    and do not overtighteen them.....
    you can do some little adjustment in order to have the right tension in all the
    4 corner......
    watches are meant to tell times..

  3. #3
    Member natornate's Avatar
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    Re: Opening up a G-shock WR question.

    Good rule of thumb is to tighten them in till you strip the threads then back them out a half turn

    Just kidding, that's one of the big concerns with screw downs, the metal screws going into plastic threads so be careful.
    -Nate
    -----------------------------------------------------------------
    "Reality is merely an illusion, albeit a very persistent one."
    -Albert Einstein

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  5. #4
    G-Shock Mod stockae92's Avatar
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    Re: Opening up a G-shock WR question.

    my $0.02
    • make sure the caseback seal is good condition
    • lightly lube the seal w/ silicon grease
    • make sure the seal sit correctly when you are closing up the caseback
    • tighten the case in "X" order (just like what ecalzo said), without over tightening them (the screws holes will get strapped if you over tighten them!)
    and in the meanwhile, don't lose the tiny springs on the module when you have the caseback opened.

    i did more "operations" than i could remember and i have zero (0) leaks or condensation so far.

    btw, i don't dive with my watches, so my concern for WR ends at about 10 ft (at the bottom of the pool)

    if you are a diver and your safety depends on the WR of the watch, then i would suggest you do a pressure after the caseback has been opened, just to be safe. and this is true for all diver's watch. (further more, if you diver, then you should have your watch clean, replace the seals and pressure test every couple of years)

    have fun!
    Last edited by stockae92; March 25th, 2008 at 00:53.

  6. #5
    Member ecalzo's Avatar
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    Re: Opening up a G-shock WR question.

    Quote Originally Posted by stockae92 View Post
    my $0.02
    • make sure the caseback seal is good condition
    • lightly lube the seal w/ silicon grease
    • make sure the seal sit correctly when you are closing up the caseback
    • tighten the case in "X" order (just like what ecalzo said), without over tightening them (the screws holes will get strapped if you over tighten them!)
    and in the meanwhile, don't lose the tiny springs on the module when you have the caseback opened.

    i did more "operations" than i could remember and i have zero (0) leaks or condensation so far.

    btw, i don't dive with my watches, so my concern for WR ends at about 10 ft (at the bottom of the pool)

    if you are a diver and your safety depends on the WR of the watch, then i would suggest you do a pressure after the caseback has been opened, just to be safe. and this is true for all diver's watch. (further more, if you diver, then you should have your watch clean, replace the seals and pressure test every couple of years)

    have fun!
    well done......
    watches are meant to tell times..

  7. #6
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    Re: Opening up a G-shock WR question.

    I respect anyone who opens their own G-Shock. I tried it once and only once. I don't have the patience/confidence.
    ShockMister

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