Buttons on casio pro trek watch stopped working -time still shows

CASIO has so many complicated watches and they all have different uses, etc. Your BEST bet is to check out their awesome website. They have a FAQ area where I would check, or just ask their customer service. Sorry. Best I can tell you. Best regards.
http://www.casio-intl.com/support/

May need a battery replacement. My solar atomic watch battery died after 3 months. Casio said the battery was not covered by the warranty. Check this YouTube video for the battery replacement process:

http://www.youtube.com/watch?v=ogCz2vjUKVg

Click on my profile (escapement), then click on Tips and Tricks. There you will find link to all CASIO watch manuals.Rate me, please

The problems is very simple: On the back cover (inside) is a little Cu metal Part. This part is glued to back cover using a poor glue (rubbered glue) and, in time, is moving from original position. You must put back this parts to original positin ( a little hole inside of back cover) and glue using a good glue. When the back cover is mounted , this part must have a ferm contact with two springs from mechanism (sensor for back cover open). If beatwin this springs isn't a electric short (using Cu metal parts) the internal mechanism of watch "see" the back cover is open and show "OPEN" on screen!

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.

Press the lower left button and hold it there. It will stop the display cycling mode

wait until the battery is full reloaded

Yes, Sir. But remember when pilots reset their altimeter with the local altitude, the pressure value matches the moment wheather pressure. It will be wrong anyway, if you reset you altitude, but the pressure readings are still wrong. Im my case it is happening. The altutide is correct but the pressure of the watch does not match the local pressure. It is 20 hpa over it. By the way, I am an airline pilot.

Send it into repairs and they will send you an estimate on what it would cost to fix it. Give them a call at 800-706-2534 option 2.

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