Question about Casio Protrek Triple Sensor Tough Solar PRG-90-3VDR Watch

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Casio pro trek prg-80T model 2894 display says "open"

Battery level is and always has been "high". Not suffered any hard impact. About 3 years old. All fixings appear tight and there is no movement on the casing. Top half of display says "open" and no functions work except the time. Pressing the back ofthe watch causes functionality to restore but immediately afterwards it is lost and the word "open" appears again. All advice welcomed. Thanks.

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  • Anonymous Mar 16, 2014

    Casio prg 60 T Had watch 9 years Battery shows fully charged Compass indicator not appearing Also back light only comes on for a split second when pressed Not long enough to check time Could it be battery or do i need new watch

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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

Posted on Jul 14, 2010

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  • cgroenewoud Nov 18, 2010

    after opening the watch, I found out, that the OPEN switch consists out of two little gold colored springs, touched by a copper plate glued to the back plate of the watch. This copper plate was slightly mis adjusted. Relocating this plate solved the problem.

    Cees Groenewoud, Goirle The Netherlands

  • motie-77 Dec 20, 2010

    I watched the youtube vid on replacing battery on g-shock, and set out to do the same on my tripple sensor. I did not succeed opening my watch (module 2894 - metal band). I removed the 4 screws (on the front side) as well as 2 screws holding the presure sensor). This allows to remove 2 parts around the bezel, but stil did not manage to free the backplate. Any suggestions anyone?

  • axis_sonor30
    axis_sonor30 Dec 01, 2012

    is it still water resistant to ??? meters???mine has the same problem.im afraid to open it bcoz it might affect the "water resistant" thing. :(

  • axis_sonor30
    axis_sonor30 Dec 01, 2012

    when you open the back,it definitely affects the "water resistant" thingy,right?i have the same problem,im afraid to open it because of that. :(

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Have you ever remove the back cover? May be battery is exhausted even it shows "high".The best is to open the watch(easy),remove the battery,check to a battery checker its condition.If good, reinsert battery and see what will happen.The best way to reset all electronic devices is to remove and reinsert the battery.That resets almost all functions.

Posted on Oct 11, 2010

  • NavigatorX Nov 19, 2010

    I think all you have to do,is simply open(very carefully-be sure that you can do that,first) the back cover of the watch.By pressing the back cover and having instant functionality, means to me that the watch has already been opened and not well closed back.Back cover is not correctly set in position.Removing the back cover,try carefully with a lens to see a little spring coming out somewhere of the mecanism.Be sure that this spring is well in position and not bent.The spring has to touch the inner surface of the back cover.CHECK THE RUBBER GASKET IF WELL IN POSITION TOO.When sure that everything looks ok,put back the back cover carefully, paying attention for the letters engraved to look correctly(not upside down).SREW WITH MUCH CAUTION(NOT TOO TIGHT).
    The other possibility is that for some unknown reason(electronics are electroncs) the watch needs to be "reset"by opening and closing the back cover.Follow this and I think that your problem will be resolved.If nevertheless problem persists(very rare case) take the watch to an authorized Casio Service.

  • Michael C. De Vito
    Michael C. De Vito Dec 20, 2010

    mcdevito75 here, Thanks gys for all your hepl. happy Holidays,

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In cadran wright of en what means that pl hellp

Posted on Jan 12, 2013

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I have solved this problem by opening the back plate and reposition the small copper plate to its place by gluing it so this plate directly facing contact to the two springs gold color.

Posted on May 06, 2012

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Well guys myself I purchased this kind of watch in Zona Franca (Free Market) Iquique Chile South America, I needed it because I was in South America and I rich altitudes of 5200 meters altitude in Peru.
I been to Machu-Pitchu Peru off Cusco the sacred city of Inca and the altitude was at the level of the city of 2200 meters altitude.
In Chile I been and lived in various cities but I find very interesting Calama 2200 meters altitude, a miner's city for the largest open cooper mine in the world, tours are free you have to be there.
The name of the mine is Chiuquecamata Codelco company belonging to the government working nonstop 365, before and alternatively went there I invented a 20" foldable bicycle with motor and went all over Atacama desert, everybody I astonish with my invention also in Peru where people statrt a revolution because of my bicycle with motor.
I did like the desert and enjoy it I remember a trip I did on bicycle with motor from Calama to Harbour Antofagasta with less than 1 gallon of gas, I always used my Protek it is necessary and many people were interested to see also the altitude on my Protek and other functions.
I find that it is good to have a Protek of which I share always my experince about it with friends back the country I was living.
I had the same problem with the word "open" apear on screen, and I took it to an autorized Casio repair and they did fix the problem, as the instruction manual is so tick I lost it and now I need to do some fuctions for the reason I am on this window. GOD bless all of you.

Posted on May 20, 2012

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Mcdevito75 here, Best Bet, look for a small watch repair shop in your area for adjustments on your Casio.

Posted on Jul 04, 2010

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