Change date on casio watch 3191 - Casio Watches

SOURCE: Casio Waveceptor 2734 WVA-105H watch not working

You can use the manual to manually reset the time. After you succeed in setting UK time zone, wait until midgnigth: it should synchronize itself with the time signal from Germany. If unsuccessful to do so, it will keep attempting to synchronize itself at 1, 2, 3, 4, and 5.

Read the manual to figure out how to place the watch on a window sill. It might be better to be outside.
Keep in mind that the success of the operation depends on meteorological conditions.
Good Luck.

SOURCE: Setting date and time

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

Use the four numbers on the back of your watch and you will have a PDF version of your instruction manual.

Hope this tip helps.

R/
David

SOURCE: cannot set the date on the casio tachymeter

wen u twist th big thing do it twice and press the top button to set dates

SOURCE: CANNOT SET MODE

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

SOURCE: My Casio watch Battery was just changed now I can

mcdevito75 here, Return to where the battery was changed, for adjustments.