User manual of g shock ga 120bb - Casio G-Shock Analog Digital Watch GA-120BB-1A GA120BB

Based on my research, I'm guessing you meant B, not 8!

https://www.google.com/#q=g+shock+ga-100b+manual

go to this link to download the manual
http://support.casio.com/en/manual/manuallist.php?cid=009http://support.casio.com/en/manual/manuallist.php?cid=009

CLICK THIS LINK FOR INSTRUCTION MANUAL
http://support.casio.com/en/manual/009/qw5229.pdfhttp://support.casio.com/en/manual/009/qw5229.pdf

casio g-shock ga-100

go here to get manual > http://www.gshock.com/support/

go here > http://www.gshock.com/support/ to download the manual

Check this out FTP download @ Casio G-Shock GA100-1A4 Watch User Manual

Hope it is the manual you need.

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

go to support page on casio. and get your manual. youll probably gonna look for a 3 or 4 digit number located at the back of your watch. once you got the manual. go to page 4. and follow the steps of "Hand Home Position Correction". that should fix it.

i also have ga 110c and i have encountered this issue

Thank you for contacting FixYa.
You can download here:

http://www.gshock.com/support/

Best regards. Jewel