Question about Casio G-Shock GW300CA-1V Wrist Watch
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Posted on Jan 02, 2017
The best would be to start with the battery check (must be full power) and full resetting of the watch.
Here is the link to user manual download page:
world.casio.com/wat/download/en/manual/ - 23k - Cached - Similar pages
If all this do not help- find your nearest watchmaker and ask for help.
Posted on Dec 22, 2008
SOURCE: casio protrek 2894
The battery does NOT need replaced.
The word "Open" on this watch means that the sensor inside the back of the watch has detected that that the back is open. I ended up having to repair this problem myself after a local watch repair guy told me he didn't want to mess with it. You'll have to get a micro-philips screwdriver and remove a few screws and pop the end caps off to get to your problem.
After you have removed the screws and end caps inside the back there's a small spring that pushes against a copper disk glued to the back of the watch. The problem is that Casio has used a crappy glue to hold this disk in place and it needs to be removed and reglued to the back in it's proper place with super glue. It's a pain in the **** but I have repaired mine by doing this. BTW...I have found a video or another help for this fix on line so I won't go too much into it. Do a Google search and you'll find the step by step process listed elsewhere.
Posted on Nov 20, 2011
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