Question about Casio PRG-40T-7 Pathfinder

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I have a CASIO PRG-40 model 2271. The batteries are dead so need to get new ones. The manual says battery model SR927W while all my local watch shop have SR927SW. The basic difference (after google searching) is current rating of the cell *SW is 55mAh(low drain) while *W is of 60mAh(high drain). my questions 1. Can I use SR927SW on this watch? 2. How do I reset after battery replacement. i.e. how do I identify AC point on my PRG-40? Is there a marking ?

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6ya6ya
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Posted on Jan 02, 2017

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escapement
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SOURCE: How do I rest my Casio PAG-40 after I replaced the batteries?

You need to shortcut AC point and battery. Take tweezers and touch AC and battery (+) simultaneously. Use an eyeglass to find AC point. It is marked on the movement with letters AC.
Here is the link for easy watch setting:

http://world.casio.com/wat/download/en/manual/

Rate me, please.

Posted on Apr 04, 2009

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escapement
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SOURCE: How do I reset my Casio PRG-40 following battery

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

Posted on Apr 09, 2010

SOURCE: Battery replacement prg 40 model 2271

The silver spring goes in a very small hole in the plastic casing on the bottom side of the watch located next to the wristband under the sensor. Hope this helps

Posted on Sep 11, 2008

  • 40 Answers

SOURCE: i replaced all four batteries

Casio battery changes are quite tricky.If you look closely at the watch module there is a place for the battery and a v-small depression usually circular on the silver module .There will be the letters AC in small writing.You need to touch the depression AC and the battery at the same time with a conductive tweezers.This shorts the module and re sets the watch.Make sure any seals go back in to protect from water/dust.
Regards

Posted on Aug 19, 2010

upajos
  • 24 Answers

SOURCE: please help me to replace battery on my casio F-91W

This reset trick works with other Casio Alarm Chrono digital watches, such as my old Model W-720, similar to your F91-W. After the new lithium coil cell is installed and secured with the spring clip, the watch may show random segments in the LCD display or may simply be blank. Insert a sewing needle, paper clip, or blade of a small jeweler's screwdriver into the hole on the back of the movement stamped "AC" (All Clear) to momentarily connect the gold plated contact at the bottom of the hole to the stainless steel battery clip. The battery clip in most such Casio watches is connected to the "+" terminal of the coin cell. This will reset the CMOS chip and it should start up with the watch displaying 12:00 and the date at 1-1. Then, use the control buttons to set the time and date in the normal fashion.

Posted on Oct 29, 2008

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

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The safest option is to take it to a watch shop and ask them to change it for you.

While removing the back and replacing the battery,(assuming that is has a similar back to mine, which is the same make),is not too difficult, it can sometimes cause problems and since the charge for this is quite small, it is not worth taking any risk is getting it wrong. (Particularly difficult is making sure that the seal is properly made).

Considering the cost of you watch I would advise against doing it yourself.

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Some watch casebacks can be opened only if the watch band is removed, so, remove it if needed, just don't forget to memorize where every part and screw was fitted. Memorize how the battery is fitted and do not put the new one the other way around as this can damage your watch.
Actually there is nothing difficult - only you have to put everything back exactly the same way as it was. If your watch will be left without battery for more than 3 minutes, you will need to reset your watch after replacing a new battery, but it's easy if you've got users manual.
Good luck.

Do not forget to rate, please.

Mar 11, 2009 | Casio PRG-40T-7 Pathfinder

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Jan 02, 2009 | Casio PRG-40T-7 Pathfinder

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Battery replacement prg 40 model 2271


The silver spring goes in a very small hole in the plastic casing on the bottom side of the watch located next to the wristband under the sensor. Hope this helps

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