CASIO GS-1100-1AER ALWAYS 2 MINUTES SLOW

Hi ,you can download watch manuals from here.
You can probably adjust it manually.

You may need to recalibrate the hands. Sometimes the hands are out of sync with timekeeping. Go to the Casio website, download the manual for your model, and follow instructions for resetting the position of the hands (might be referred to as zeroing or recalibaration).

If your watch is exactly an hour out, then you need to set the daylight saving time (DST) via the mode button.

If this is not the case, then I cannot help you.

~Good luck

Perhaps it has changed to daylight saving time if you accidentally pressed the mode button. Were you wearing the watch?

Perhaps it is set to the wrong time zone?

If you haven't got instructions on how to do this, you can get instructions from the Casio web site.

Go to the casio web site "casio.com".

Select "support" and the "manuals",
watches;

Accept terms

Select "watch manual archive"

Read the number of the back of your watch and enter it into the search box

No reason to panic as your watch hands can be advanced to desired time. Her is the link for your watch users manual download:

http://www2.casio.co.jp/manual_pdf/wat/en/pdf_search.php?MODULE=4305&submit.x=52&submit.y=12

Save it on your PC and follow instructions how to set the time.
Don't forget to rate, please.

I had the same problem this week and after downloading and reading the operation guide, I found the "adjusting the home positions" procedure in page 2, I followed the instructions and now my Casio 4303 is up and running, I got the operation guide from: http://ftp.casio.co.jp/pub/world_manual/wat/en/qw4303.pdf (thanks to jeffw284 for the information).
I hope this helps to solve your problem.
Best regards.

how to adjust time on casio telememo watch

You can get it serviced at www.casiosalesandservice.com or call them toll free 877.659.0761

Use this page to download a copy of CASIO watch manuals in PDF format. To download a PDF file, enter the four-digit (or three-digit) module number marked on the back cover of your watch.

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

You will need a pdf reader on your pc, you will find all instructions in there.

If you don't have a pdf reader you can get one from
http://www.foxitsoftware.com/pdf/rd_intro.php