12 hours early

I think you have the wrong time zone selected. Some zones are 30 min. off the rest. just in case

Instruction book page E-23. To turn auto receive on or off. In Timekeeping mode press D (Lower right) to display last Signal screen. It should say GET at the bottom and show the last time it updated. (Or ERR) Hold down A until the receiving indicator and current auto receive setting (ON or OFF) start to flash. Press D to toggle auto receive on. A again to end.
If you tried to make it receive manually this will be turned off. If the GET screen said ERR then it did not update and auto receive would still be off. I had to do the manual thing about 20 times before it updated. A upper left C lower left D lower right A upper right (light)

Instruction book page E-23. To turn auto receive on or off. In Timekeeping mode press D (Lower right) to display last Signal screen. It should say GET at the bottom and show the last time it updated. (Or ERR) Hold down A until the receiving indicator and current auto receive setting (ON or OFF) start to flash. Press D to toggle auto receive on. A again to end.
If you tried to make it receive manually this will be turned off. If the GET screen said ERR then it did not update and auto receive would still be off. I had to do the manual thing about 20 times before it updated. A upper left C lower left D lower right A upper right (light)

My Wave Ceptor also reset to 01/01/05 four days ago. I've had it for more than a year and this is the first time it's happened. It hasn't reset with automatic updates and I can't get it to manually update.

mcdevito75 here, 1 of the buttons should say MODE, press this button and see the display blinking, NOW! press the set button for each function, after each function is set press MODE to move onto the next function, when all functions are set, press MODE again to see steady display.

If the watch is running try to sync the watch 1st, meaning set the minute and hour hands pointing to 12:00 o'clock. before you go to set the time.

For Casio Waveceptor:

--- A
( ) Button Reference
--- B

Set in correct order:
1) Hand Home Position
2) Digital Time Set

1) Hand Home Position:
Press and hold A and B for 5 seconds, Press A to move Second Hand to 12: position: (if not there). Press B to enter Hour/Min set mode. Press A to move both hands to 12: position. Hold A to move hands fast, Press A again to stop hands. All 3 hands are now at 12' oclock.

Press B to exit Hand Home Position mode and enter Timekeeping Mode.

2) Digital Time Set: (hands will self set when done)
Press and hold B for 5 seconds to enter setting mode.
Press A to advance current item or scroll through choices. Press B to set item and advance to next item.

<Order of Items to Set>
GMT Differential -> Daylight Savings auto/on/off -> Seconds -> Hour -> Minutes -> Year -> Month -> Day -> Day of week language -> Auto receive -> (back to Timekeeping Mode).

<Setting each Item>
GMT Differential: Press A untill your time zone is reached (E=eastern, C=central, M=mountain, P=pacific). Press B to set (advances to next item).

Daylight Savings: Press A untill desired DST mode is reached: ("At" auto, "On" after spring change, "Of" after fall change) Press B to set (advances to next item).

Repeat to set: Seconds (resets to :00), Hour, Minutes, Year, Month, Day, Day of Week Language, and Auto Receive (on/off).
For each item, Press A to advance, and B to set.

Pressing B to set last item exits Setting Mode and enters Timekeeping Mode. Hands advance to current time.

Good luck,
Techjoel

If DST is set to AUTO,time (DST ON-DST OFF) is corrected automatically when the watch is synchronized.
Synchronization period (Radiocontrol) from 00:00 until 06:00.
If you live in an area where atomic signal cannot be reached by the watch,you have to change DST-NORMAL and vv,manually,by going to WT (World Time) function and when your city (or the closest big one) appears on the display,press and keep pressed for 1-2sec the SET button.
DST mark will appear or disappear,accordingly.

you can download the manual on this website:

http://www.casio-radio-controlled.com/euro/support/

for the WV-100 the code is 2512

I have the same watch and thought I had the same problem. Casio's website actually DOES have the downloadable manual for this watch in their Support section, though it's kind of burried in their "Watch Manual Archives" section. Try to copy this address into your browser: http://world.casio.com/wat/download/en/manual/ FYI, the manual number you'll need to search for is shown in a rectangle on the back of the watch. In my case it was # 3054. When I downloaded the manual and read it, I learned how to confirm auto-updating is activated, and how to do manual updating. In my case, I was trying it from too far inside my house with a weak signal. When I set all of the settings as described and placed the watch in the window with 12:00 pointing outside as shown in their diagrams, the manual update feature worked like a champ. I also learned about a couple of other neat features hidden in the watch. Too bad the manual didn't come with the watch when I bought it; it would have saved me lots of frustration. Hope this helps you!

Try this link and type in your module number found on your watch and you should be able to download your watch's manual.
http://world.casio.com/wat/download/en/manual/