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Big trouble with GW-9300GB MUDMAN, please help (photos of the watch dissasembled)

4337 Views 16 Replies 7 Participants Last post by  Georgewg
Hi all,

I've got a second hand GW-9300GB and it seemed to work OK for a whole day. Battery meter was at Medium (M). Suddently I check it out and the screen has gone completely black, buttons don't respond (!)

I've just took a shower with the watch and my first thought is: water got inside. So I dissasemble the watch as quickly as I can to dry the module, etc.

The module looks completely dry. I cannot see any signal of water inside.

So I reset the watch connecting AC with battery. The watch seems to reset OK. The word "CHG" blinks for a while. Then the watch starts to work. Battery meter is at Medium (M).

But BUTTONS DON'T RESPOND. None of them.

I repeat the reset procedure. The word "CHG" blinks for a while. The watch starts to work again. Battery meter is at Medium (M) again.

Still BUTTONS DON'T RESPOND. Digits seem to blink a bit when I press them, which is weird. (?)

I have opened many G-shocks and I am pretty sure the module is properly placed. To ensure that buttons work, I usually press the contacts directly from the module. I do that with GW-9300GB module and nothing happens. Then again, maybe it's because buttons aren't supposed to work if the back plate is not properly closed?

I mean, when I remove the back plate, the display shows the word "OPEN".

Any ideas of what's wrong with my watch?

Another question: After disassembling the watch, I've noticed there's TWO rubber gaskets (!!!).

Auto part

One of them (see it in the right) fits perfectly in place where gasket is supposed to to be. But what about the other one (see it in the left)? I dissasembled the watch very quickly to dry it and I cannot remember where it was placed.

I've checked out these 2 threads, but their authors say nothing about two gaskets.

Any help, please? It's the first G-Shock I've purchased in years. I'm desperate here.

Here's two more photos of the watch:


Analog watch Watch accessory Auto part Automotive lighting Watch

Thanks a million in advance,

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1 - 2 of 17 Posts
i think like Kungfusion too, buttons don't function if battery gets low, even though it says M, but it just reaches M from L

I would let it hanging out under the sun for days before open it - but since you already open it then go ahead and change battery
yes, please keep us posted, I am just surprised since this happened to a 9300, a much newer Gshock - it happened A LOT to the old 2300-2310 line and old 5600/5610 - but who knows, maybe the G's battery is not even original when you open it
1 - 2 of 17 Posts
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