Watch keeps resetting every 2 to 3 weeks

Possibly these instructions:

http://forums.watchnet.com/index.php?t=tree&goto=110449&rid=0

DIGITAL WATCH USER INSTRUCTIONS May 27, 2006 - 05:59 PM On 5/26/2006 I bought from Walmart a $6.43 watch, on the back of which is written "AH 1175, 52, Battery CR2025, China Module, FMD, Base Metal Bezel, Stainless Steel Back, 100ft Water Resistant". It has no control buttons on top (where buttons may be accidentally pushed), the display is larger and more visible, and the color is dark, so I bought it even though I prefer models that have a fabric/velcro wrist-strap.
Four buttons on this watch are labelled: Light, Mode, Reset, and St/Sp. The instructions which I found inside its container refer to the Light button as A, the Mode button as B, the Reset button as C, and the Start/Stop button as D, but otherwise do not pertain to the watch, so I determined the button's functions by trial and error, as follows:
--
TO SELECT THE DISPLAY MODE
Push the Mode Button in order to select one of the following four display modes in the following order: Normal Time, Stop Watch, Alarm Reset, Time Reset.
In the Normal Time Mode, the Day of Week, the Hour, Minute and Second are displayed (none flash). If the Alarm and Hourly Chime icons are not displayed, the Alarm and Hourly Chime are turned off.
--
TO DISPLAY DAY OF WEEK, HOUR, MINUTE, SECOND AND WHETHER THE ALARM AND HOURLY CHIMES ARE ON:
Push the Mode button until no icon is flashing. The Alarm and Hourly Chimes are off if no Alarm or Chime icon is displayed beside the Second display.
--
TO DISPLAY THE DAY, MONTH AND DAY OF WEEK AND WHETHER THE ALARM AND HOURLY CHIMES ARE ON:
In Normal Time Mode, push the Start/Stop button. The Alarm and Hourly Chimes are off if no Alarm or Chime icon is displayed.
--
TO DISPLAY THE ALARM TIME
In Normal Time Mode, push the Reset button. The P or A beside the Alarm Time indicates PM or AM time. The P or A below the Alarm Time indicates a 12 hour clock; an H indicates a 24 hour clock.
--
TO STOP/START THE ALARM AND HOURLY CHIMES
In Normal Time Mode, hold the Start/Stop button down and push the Reset button (the Date and Day of Week will be displayed) to turn the preset Alarm and Hourly Chimes on, or off (to save the battery). To test the alarm, hold the Reset button down. The alarm and chimes are off when the alarm and chimes icons are not displayed.
--
TO STOP THE HOURLY CHIME
In Normal Time Mode, hold down the Reset button (the Alarm Time will be displayed) and push the Mode button until the Day of Week display is no longer highlighted; otherwise the hourly chime drains the battery.
--
TO SET THE TIME
To Fast/Forward until the correct number is displayed, hold the Start/Stop button down.
To set the Month of the Year, select the Time Reset Mode and push the Reset button until the Month of the Year number flashes; push the Start/Stop button until the correct Month of the Year is displayed and push the Reset Button.
To set the Day of Month, select the Time Reset Mode and push the Reset button until the Day of Month number flashes; push the Start/Stop button until the correct Day of Month is displayed and push the Reset Button.
To set the Day of Week, select the Time Reset Mode and push the Reset button until the Day of Week display flashes; push the Start/Stop button to until the correct Day of Week is displayed and push the Reset Button.
To set the Hour, select the Time Reset Mode and push the Reset button until the Hour number flashes; push the Start/Stop button until the correct Hour is displayed and push the Reset Button. For a 24 hour clock, push the reset button until an H is displayed. For a 12 hour clock, push the reset button until an A or P is displayed.
To set the Second, select the Time Reset Mode and push the Reset button until the Second number flashes. The Second number resets to Zero everytime the Start/Stop button is pushed. If the Start/Stop button is pushed as soon as the Second hand on your computer and watch are the same, the watch will be accurate to one second (to set your computer time to the second, log on to the Internet, right click on your PC's time display, select ADJUST DATE/TIME, INTERNET TIME, UPDATE NOW). The setting of the Second number will not be affected by setting the Minute number afterwards.
After the Second number is set, set the Minute number by selecting the Time Reset Mode and pushing the Reset button until the Minute number flashes; push the Start/Stop button until the correct Minute is displayed and push the Reset Button.
--
TO SET THE ALARM TIME AND TURN ON THE ALARM
Choose the Alarm Reset Mode. The alarm is turned on everytime the Alarm time is reset.
To select the Hour, push the Start/Stop button while the Hour is flashing and until the correct Hour is displayed, then push the Reset button (the Alarm and Hourly Chime icons will appear).
To select the Minute, push the Start/Stop button while the Minute is flashing and until the correct Minute is displayed, then push the Reset button.
Push the Mode button after the correct Alarm Time has been selected. The Alarm and Hourly Chime icons will be displayed beside the Second numbers.
The P icon indicates PM. The A icon indicates AM. The H icon indicates a 24 hour clock.
--
TO USE THE STOP WATCH
Choose the Stop Watch Mode. Push the Start/Stop button to begin the lap time. To pause the Stop Watch push the Start/Stop button to stop it and push it again to continue. To reset the Stop Watch to zero, stop the lap time by pushing the Start/Stop button, then push the Reset button (otherwise the Stop Watch will continue counting after other Modes are selected).

Hopefully, this will help...

Lego Watches Manual Instruction:
There are 4 buttons on this lego watch case, Light button, Mode button, Stop button and Reset button, now I will show how to set the time easily!
1, Light Button: Press this button, the watch LCD light will display for 3-5 seconds;
2, How to use the stopwatches chronograph function?
Answer: When the lego watches in normal working condition, Press "Stop button" for 1 time, then the watch goes into the chronograph mode, then you can use "Stop button" and "Reset button" to operate this function.
3, How to set the alarm time?
Answer: When the lego watches in normal working condition, Press "Stop button" for 2 times, then the watch goes into the alarm mode, then you can use "Stop button" and "Reset button" to set the alarm time, also you can turn off or turn on the alarm function and chime on every hour function by the same operate.
4, How to set the right watch time, hour, minute, second, week, date, month, year?
Answer: When the lego watches in normal working condition, Press "Stop button" for 3 times, then the watch goes into the time setting mode, then you can use "Stop button" and "Reset button" to set the second, minute, hour, week, date, month and year.

This is all. So now please have a try to set your lego watches time!

Hand home positioning normally has nothing to do with time setting.
Just set your local time and date and then you can do the hand home positioning procedure.This will not affect the time setting.If hands,after a while,do not show correctly,this means that the watch is under severe magnetic field, after severe shock or finally watch malfunction.
You must know that on this type of watches analog time follows digital time.

On the face of the watch, there are four buttons arranged around the circle of the watch face in four positions. Starting with the upper left hand button (labelled SET), and working clockwise around the face of the watch (to ADJ., EL, and MODE), I'll label the buttons "A", "B", "C", and "D".

In other words...
Button "A" is the button labelled "SET" in the upper left hand corner of the watch.
Button "B" is the button labelled "ADJ." in the upper right hand corner of the watch.
Button "C" is the button labelled EL in the lower right hand corner of the watch.
Button "D" is the button labelled "MODE" in the lower left hand corner of the watch.
Setting the Time.
1. Press and hold D as if you were setting the alarm. As above, the stopwatch will momentarily appear and then after 2 seconds the alarm time will appear with the hour flashing.
2. Press and release D and the seconds on the time of day will begin to flash.
3. Press and release B to reset the seconds to zero provided they are below 30. If they are above 30, the seconds will reset and the minutes of the time of day will advance by one.
4. Press and release A to change from flashing seconds to flashing minutes/flashing hours/flashing day of the month/flashing month of the year/flashing day of the week. In each flashing mode, pressing and releasing B advances the value by one unit.
5. Press and release D to exit time setting mode.

The problem is in chronograph module or related gear train. To find what exactly the problem is, special tools and equipment is needed as well as watchmakers knowledge and skill. There may be just an underpowered battery, but according to your explanation, I tend to think that the first causes mentioned by me are the right ones. Visit your nearest watch repair shop and ask to check your watch for any faults. Rate me, please.

On most watches all you have to do is pull the crown to position 2 (the last) and depress pusher A (on the top). The second hand should advance in 1 second intervals. Keep pushing the A pusher until the second hand lines up with 12 hour marker. Push the crown back in and your done!

Here is the link where you can download manual for your watch:

http://www.seikousa.com/pdf/SNA_Series.pdf

The last chapter explains how to reset hands to zero.

Do not forget to rate, please.

You can download the manual from the link below: http://world.casio.com/wat/download/en/manual/? You need to input the four digit code from the back of the watch. Please update the question & let us know if the information given was useful to you - Good Luck!

Pushing all the buttons at the same time you resets the digital functions. You'll have to reset the time and date, but it will all work again. I don't know why the watch freezes up, but pushing all the buttons at least resets it. I like my watch and this quirk is an annoyance, but it's livable after finding this solution.

Flashing Squares means battery going dead - time to replace. May take up to 3 months to stop.