Casio G-Shock Analog Digital Watch GA-150A-4A GA150A - Page 4 - Answered Questions & Fixed issues

To set time and date, you must in "Time Keeping Mode" (display day, date & time) then press and hold the left-up button until it start flashing. To set press right-down button, to go next setting press left-down button. To toggle between 12-hour to 24-hour, again, must in "Time Keeping Mode" then press right-down button. here is the manual https://support.casio.com/storage/en/manual/pdf/EN/009/qw2672.pdf

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.

https://support.casio.com/en/manual/manuallist.php?cid=009

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

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

Unplug it for a couple minutes and then plug it back in to see if it will start up again, if not look in your instruction manual. If nothing about it, contact the company of your machine

CTL1616 and there is a video on you tube showing you how to do it. I assume this is the casio Forester.

CR2016

https://support.casio.com/en/manual/004/HR-170RC_200RC_WA_EN.pdf

Even much older watches that display day and date don't require you to change yourself manually so I can't imagine this would be the case. If the time part is working okay, bring to the jewellery store, they may have someone there to examine the mechanism. If time not working either, you probably need to wind it or change the battery

It's possible that some part in your watch hasn't been put back (properly) during the replacement procedure of the battery. I'd advise you to go back to the service point and let them check if all the internal part are complete (and in their right position)

https://support.casio.com/es/manual/manuallist.php?cid=009

If the digital display still works, there is most likely something wrong with the watch movement. If there is no readout at all, the battery is probably dead. In both cases you should take your watch to a service centre to have it checked.

A detailed description of this procedure is found in the manual of your watch. You can find the right manual with the module nr. on the back of your watch (4 digit number in a rectangle) The manual for your watch can be downloaded via the link provided below: Timepieces Watches

You need to advance the hours (hour hand) 12 hours forward to have the date changed at 12 o'clock midnight. A detailed description of this procedure is found in the manual of your watch. You can find the right manual with the module nr. on the back of your watch (4 digit number in a rectangle) The manual for your watch can be downloaded via the link provided below: Timepieces Watches

A detailed description of this procedure is found in the manual of your watch. You can find the right manual with the module nr. on the back of your watch (4 digit number in a rectangle) The manual for your watch can be downloaded via the link provided below: Timepieces Watches

A detailed description of this procedure is found in the manual of your watch. You can find the right manual with the module nr. on the back of your watch (4 digit number in a rectangle) The manual for your watch can be downloaded via the link provided below: Timepieces Watches

A detailed description of this procedure is found in the manual of your watch. You can find the right manual with the module nr. on the back of your watch (4 digit number in a rectangle) The manual for your watch can be downloaded via the link provided below: Timepieces Watches

A detailed description of this procedure is found in the manual of your watch. You can find the right manual with the module nr. on the back of your watch (4 digit number in a rectangle) The manual for your watch can be downloaded via the link provided below: Timepieces Watches

A detailed description of this procedure is found in the manual of your watch. You can find the right manual with the module nr. on the back of your watch (4 digit number in a rectangle) The manual for your watch can be downloaded via the link provided below: Timepieces Watches