I bought this watch in May of last year. For the last 3 months, every 2 to 3 weeks I have to reset the hand home position. Once that is done, I have to then reset the home city and time manually. What causes this? Also, is there a warranty on the watch? I don't feel like I should have to completely reset the watch every few weeks. Thanks.

Here is what it says to do if the hands don't match up with the display time (usually happens after you change the battery).
First, you must locate the buttons on the watch.
The "A" button is at the 2 o'clock position (upper right). The "B" button is at the 10 o'clock position (upper left) The "C" button is at the 8 o'clock position (lower left) The "M" (mode) button is at the 4 o'clock position (lower right), and is the only button you can pull out to set the times, calendar and programming.
To RESET the watch and do the ZERO POSITIONING after changing a battery or having a display error, do the following.
RESET 1. Pull the "M" button out to the setting position. 2. hold down the "A", "B", and "C" buttons simultaneously for 3 seconds, then release them. All digit segments will turn on and display completely.
ZERO POSITIONING 1. Press the "B" button and all the segments in the digital time will reset to zero, with "UTC" showing in the main digital window. 2. Zero the "UTC" minute and hour hand (located in 12 o'clock sub-dial) to the 24 o'clock maker (straight up). Button "A" will move the hands clockwise, and button "C" will move the hands counter clockwise. 3. Press button "B" - "HR" shows in the main digital window. Adjust the main (large) hour hand to the 12 o'clock (midnight) position using "A" and "C" buttons. At the same time, observe the synchronized 24 hour hand (small dial to the left of the main dial), to insure that it also moves to point to "24". 4. Press button "B". "MIN" shows in the display window. Adjust the large minute hand to also point to the 12 using the "A" and "C" buttons. 5. Push the "M" (mode) button back in to its normal position. The watch beeps and at the same time the hands jump slightly. ALL RESET and ZERO POSITIONING are now complete. 6. Reset the time, calendar and other modes.
To set the time. Note that changing the time in any of the cities will automatically update the time for all the cities. 1. Press the "M" button to move the mode hand to (TME) 2. Press either the "A" or "C" button to move to the desired city. 3. Pull the "M" button out to the setting position. 4. Press the "A" button. SECONDS will blink. Set them with "C". 5. Press the "A" button again, and MINUTES will blink. Set them with the "C" button. 6. Press the "A" button again, and HOURS will blink. Set with the "C" button. 7. Press the "A" button again, and 12 or 24 hours tim format will appear. 8. Push in the "M" button to its normal position.
To set the calender 1. push the "M" button to move the mode hand to (CAL) 2. Set the city using the "A" or "C" buttons. 3. Pull out the "M" button to the "setting" position. The numbers of the "month" starts to blink. this is an "american" date system with the month first, day second, and year third. Use "C" button to adjust the month. 4. Push the "A" button. The date (day) will flash. Adjust with the "C" button. 5. Push the "A" button. The YEAR flashes. Adjust with the "C" button. 6. Push the "M" button back in. The calender is simultaneously adjusted for all cities.
Couple of other "tips".
Switching the time on the digital display with the time shown on the hands: 1. Press the "M" button until the mode hand is in (TME) or (CAL) mode. 2. Pressing the "A" and "C" button together. The time will switch the between the main hands (analog) and the digital display.
Temporary Hand Retraction Pressing and holding the "B" button will move the hands out of the way of the display. Repressing the "B" button will put the hands back at the correct time.
hope this helps. Source: how to set time on a bulova marine star 96C30

This solution is from fixya member ropickym Fixya

If it is this pocket watch, then the crown (the bit you turn to wind the watch) has 3 positions. Position 1 is when the crown is pushed in all the way. Position 3 is when the crown is pulled out as far as it will go. In between position 1 and position 3 is a place where the crown will stop, this is position 2.
To set the day of the week, pull the crown out to position 3 to set the time. When you set the time, the bottom dial with also turn to set the hour on the 24 hour clock, if you turn the crown enough to cycle through a whole day the day of the week dial will also turn. Keep turning the crown until the time is set on the proper day of the week.
To set the date, pull the crown out to position 2, and turn it clockwise until the hand on the date dial points to the correct date.
Hope this helps!

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.

OK try and follow these steps and it may help you set the time on your Watch. Once you understand the different function buttons on the edge of the case setting the time will be an easy task.

1-Note the 2 and 4 o'clock function buttons and the crown at 3 o'clock on the case edge of the Citizen Skyhawk Eco-Drive. These buttons set all functions of the watch.

2-Set the home city digital display function at 9 o'clock by pulling the crown to the first position. Rotate the crown until the mode hand in the subdial at 6 o'clock is aligned with TME. Press the 2 o'clock button until the nearest major city where you live appears. Press the 2 and 4 o'clock buttons at the same time to find the home city in the 3 o'clock digital display window. Once the city is selected, the time is automatically set by the automatic radio reception function.

3-Pull the crown out to the first position to manually set the time. Rotate the crown until the mode hand is aligned with the CAL, TME and RX-S position under the umbrella line. Push the crown flush with the case edge. Point the watch's 9 o'clock side in the direction of the radio transmitter. For example, if you live in Los Angeles, point the watch's 9 o'clock side east towards Ft. Collins, Colo., where the transmitter is located.

4-Hold down the 4 o'clock button for two seconds until the tone sounds and the second hand stops at the RX-S position. The second hand will then move to H, M or L found at the 2 o'clock subdial. Remain holding the watch in the same position. The second hand will move from the H, M or L position with the hour and minute hands to the correct time once the radio reception is completed.

5-Press the 2 o'clock button to start the chronograph's stopwatch. Press the button a second time to stop the timer. Press the 4 o'clock button to reset the timer.

6-Pull the crown all the way out and rotate it clockwise until the correct date is selected. Push the crown flush when finished.

IF you are still not able to set the time contact your dealer or the nearest Citizen showroom.

The crown has three positions. The A position is when it’s pushed all the way in. You can’t set anything in this position. The C position is when it’s pulled all the way out. The B position is the click between all the way in and all the way out. My biggest problem is that I read the directions to mean that there were FOUR positions. I didn’t realize A was all the way in. I thought there was three pulled out positions.
To set the day of the week (Sun, Mon, etc.): Pull the crown all the way out (position C) and turn the time to just after midnight. The setting will click to the next day. To advance it an additional day, you don’t have to turn the hands another twenty four hours. You can turn the hands backward to before midnight (you will see the day of the week setting click a little, but not go backwards), then turn the hands past midnight again.
I recommend setting the day of the week setting to YESTERDAY. You’ll see why later.
To set the date: Pull the crown one click out (position B) and turn the crown away from you (clockwise). This will advance the day indicator (it looks like a second hand). To set the month, you have to keep turning until you get past an entire year. There is no separate way to set the month. To make the correct month show, you must keep turning the crown past every day of the year until you get to the correct day.
I recommend setting the date to YESTERDAY. I’ll explain why later.
To set the moon phase: Pull the crown one click out (position B) and turn the crown toward you (counter clockwise). To find out what phase the moon is currently in, here are a couple of websites:

• StarDate Online | Moon Phase Calculator
• U.S. Navy: Phases of the Moon
• Moon Phases :: Calendars

Once again, set it to the moon phase for YESTERDAY.
To set the time: Pull the crown all the way out (position C) and turn the crown either away or towards you to set the time. Keep turning the time away from you (clockwise) until you get past midnight. Once you get past midnight, ALL the settings should change (day of the week, date and moon phase). Now you KNOW you’re on today’s date at just after midnight. Set the correct time and your Luar watch is ready to go!
Review Many of the Swatch enthusiasts were disappointed that the Luar is a battery powered watch instead of an automatic. With a price tag of approximately $450, it’s a little much to expect an automatic with a real moon phase. I’ve talked at length about what I desire in a watch here:

• Gadgets Page â» I Hate the Watch Designers of the World

My desires have changed a lot since that day nearly four years ago when I went looking for the perfect
The crown has three positions. The A position is when it’s pushed all the way in. You can’t set anything in this position. The C position is when it’s pulled all the way out. The B position is the click between all the way in and all the way out. My biggest problem is that I read the directions to mean that there were FOUR positions. I didn’t realize A was all the way in. I thought there was three pulled out positions.
To set the day of the week (Sun, Mon, etc.): Pull the crown all the way out (position C) and turn the time to just after midnight. The setting will click to the next day. To advance it an additional day, you don’t have to turn the hands another twenty four hours. You can turn the hands backward to before midnight (you will see the day of the week setting click a little, but not go backwards), then turn the hands past midnight again.
I recommend setting the day of the week setting to YESTERDAY. You’ll see why later.
To set the date: Pull the crown one click out (position B) and turn the crown away from you (clockwise). This will advance the day indicator (it looks like a second hand). To set the month, you have to keep turning until you get past an entire year. There is no separate way to set the month. To make the correct month show, you must keep turning the crown past every day of the year until you get to the correct day.
I recommend setting the date to YESTERDAY. I’ll explain why later.
To set the moon phase: Pull the crown one click out (position B) and turn the crown toward you (counter clockwise). To find out what phase the moon is currently in, here are a couple of websites:

• StarDate Online | Moon Phase Calculator
• U.S. Navy: Phases of the Moon

Once again, set it to the moon phase for YESTERDAY.
To set the time: Pull the crown all the way out (position C) and turn the crown either away or towards you to set the time. Keep turning the time away from you (clockwise) until you get past midnight. Once you get past midnight, ALL the settings should change (day of the week, date and moon phase). Now you KNOW you’re on today’s date at just after midnight. Set the correct time and your watch is ready to go!

Instructions are on the inside of the back cover: 1. short circuit AC and the battery clamp. 2. the hands will rotate once clockwise 3. in the chime mode, pull out the crown and set the hands to the 12:00 position 4. Return the crown to normal position, change to time mode and set the desired 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

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.

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