WatchUSeek Watch Forums banner

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

4335 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,

See less See more
1 - 2 of 17 Posts
All evidence points to a bad battery. This exact type of behavior happens when the rechargeable battery is going bad--the display shutting off, going to "medium", lack of response to buttons.

My guess is the previous owner left it in the dark for a year or so. Charged it up for a day to get it working, then sold it. But the battery may not hold a charge anymore. It is weak and since you have already opened the watch you should replace it. Find another identical rechargeable battery (Amazon or pacparts) and replace it, and give it a good charge in the sun after replacement
  • Like
Reactions: 1
Although... I just saw your photo of the two gaskets. This watch does NOT have two gaskets, so either someone went into it at some point and added a gasket, or it is a weird manufacturing error. Never seen anything like that before

Buttons not working on Medium is normal for a bad battery. It is not really on medium. It just thinks it is
1 - 2 of 17 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.