20 Most Recent Casio G-Shock Green Resin G-8100B-3DR Questions & Answers


Casios have 2 time modes.The 12 hour mode (am,pm) and the so called "military time" 24 hour mode.When your set time,date,year there is an option 12H or 24H.Choose the 12H by pressing the lower right button when in setting procedure,I say again.Press tthe upper left "ADJUST" button to finish the procedure.

Casio G-Shock... | Answered on Feb 06, 2014


The format (12-hour and 24-hour) of the alarm time matches the format you select for normal timekeeping. When setting the alarm time using the 12-hour format, take care to set the time correctly as morning or afternoon.
https://support.casio.com/storage/en/manual/pdf/EN/009/qw5158.pdf

Casio Watches | Answered on Jul 09, 2019


To Toggle between 12-hour and 24-hour timekeeping:

In the Timekeeping Mode (regular watch display), press the lower right-hand button to toggle between 12 and 24 hour timekeeping.
12 24 toggle-2boiufb2ir3wdmt45g4ixcbm-5-0.png

Casio Watches | Answered on Jun 15, 2019


Please Google (casio)(EFA 124)(manual) without parens.

Casio Watches | Answered on May 31, 2019


you posted to USA web site that is only English, not obvious that?

Casio Watches | Answered on May 24, 2019


Hi Jamie, the best thing to do is take it to a qualified Jewler/watch repairer.

Casio Watches | Answered on May 19, 2019


My Dad has one of these watches, his battery is dead where can I get the battery to replace it?

Casio Watches | Answered on May 13, 2019

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