Setting the time... I press and hold the mode button and can advance through the hours and minutes by tapping the mode button but I can not figure out how to switch between am and pm or turn the alarm on and off

if it is the Batman watch that has a secret screen that lights up when you pushed the bottom middle of the watch face this is what worked for me.I call that secret middle button the mode button.
push and hold that secret button on the watch face until the hour side of the time starts to blink. let go when you see the hour blink and then you can keep pressing to change the hour. to change the minute I let it go back into sleep mode then press and hold the secret button on the watch face and when it starts to blink let go for half a second and then press down and hold that button again and a minute numbers should start blinking. when they start blinking let go and then push once for each minute. it seems once you start one of these cycles letting go for half a second and then pressing and holding the mode button works. you'll have to experiment with how long to let go and then push.

THE WATCH IS SET OUT AS TOP LEFT BUTTON = B
BOTTOM LEFT BUTTON = A
TOP RIGHT BUTTON = C
BOTTOM RIGHT BUTTON = D

10 Half Digit Digital FL145, FL186

Normal Time Display

1. Press A to change mode.

2. Press B for EL.

3. Press C to toggle 12/24 hour format.

4. Press D to stop alarm sound.

Time/Calendar Setting

1. From normal time display, press A three times to enter setting mode. Seconds will begin flashing.

2. Press C to reset seconds to zero.

3. Press D to set and advance to next setting value.

4. Press C to increase digit; press and hold C for fast advance. Press D to set each setting value.

5. Setting sequence is: seconds, hour, minutes, month, date, day of week.

6. Press A to exit setting mode.

Alarm Setting

1. Press A to change to alarm mode (AL).

2. Press and hold C for alarm sound testing.

3. Press C to toggle alarm/chime on/off.

4. Press D to enter setting mode; hour will begin flashing.

5. Press C to advance digit; press and hold C for fast advance.

6. Press D to set hour and minutes.

7. Setting will automatically exit setting mode mode after minutes are set.

Chronograph Mode

1. Press A to change to chronograph mode (ST).

2. Press C to start/stop chronograph.

3. Press D to reset chronograph when it is not running.

Split Time

1. Press D while the chronograph is running.

2. Press D again to return to the chronograph.

3. Press C to finalize timing.

4. Press D to reset to zero.

WATCH KEYS: Top RIGHT=S1 Bottom RIGHT=S2 Bottom LEFT=S3 Top LEFT=S4
SKMEI WATCH User Manual Model 0817
Operating instructions:
In normal mode modelDisplay: Week-Minutes-SecondsPress S1 show Month and DatePress S2 button to show Alarm Hours and MinutesModes Covert: Press S3Modes of watch:
In normal display mode: Press S3> chronograph mode (stop watch)>time setting mode>>>(then back to beginning)
Chronograph function:
In normal display mode: Tap S3>enter chronograph mode>
tap S1 to start>
tap S2 to lap time>tap S2 read time>tap S1 to stop>tap S3 to exit tap S1 to stop
tap S2 to reset>tap S1 to start ...then begin againChime of every hour ON/OFF:
In normal mode hold S2 and then tap S3, if all icon of week on means Chime ON, otherwise means off.Alarm Setting:
In normal time Mode, tap S3 twice enter into Alarm setting mode, and the Hours flashing Tap S1 to adjust correct hour of your alarm. Pay attention to AM/PM (Military 24 hour display)Tap S2 the Minutes will flash. Tap S1 to adjust correct minute of your alarmTap S3 to save/exitTime & Date Setting:
In normal time Mode, tap S3 three times to enter Time & Date setting mode and Seconds flashing.Tap S2 and the Minutes will flash. Tap S1 to adjust minutes ("H" is 24 hour format)Tap S2 and the Hours will flash. Tap S1 to adjust the correct hoursTap S2 and the Date will flash. Tap S1 to adjust the correct monthTap S2 and the Weekdays will flash. Tap S1 to adjust the correct days (M=Monday, T=Tuesday...)Tap S3 to save/exit.Back-light setting:
Hold S4 will show all kinds of colors (blue, green, red, cyan, purple, yellow, orange) Just stop hold the button, last color lit will be memorized to set as current back light.

Timex Digital Watch

Press and hold the "Set" button for 2 seconds. The "Set" button is on the lower right side

Press the "Date Advance" button on the upper right side. This will reset the seconds.

Press the "Change Mode" button on the lower left to set the hour. The hour will flash. Press the "Date Advance" button until the correct hour is displayed.

Press the "Change Mode" button again to set the correct 10s unit (first digit 1 or 0) for the minutes. Press the "Date Advance" button until the correct first digit of the minutes is displayed. Repeat this step to set the second digit of the minutes.

Repeat Steps 1 through 4 of this section to set the year, month, date and day and whether to use 12- or 24-hour time for your watch.

When finished, press the "Set" button (on the lower right) to return to the current time view and lock in your settings.

Thank you for contacting FixYa.
Light = A - lower left button
Mode = B - Upper left button
Date = C - Upper right button
Alarm = D - lower right button


Set time time / date

Press and hold B (Mode) untill alarm hours flash
Press D (Alarm) to advance these
Press B (Mode) again, seconds will flash,
press D (Alarm) to advance these
Press C (Date), minutes flash, press D to advance these
Press C again, hours flash, press D to advance these
Best regards. Jewel

Setting the Time
1. G-Shock watches feature a digital display that is set using the function buttons on the outside of the watch face. To set the time, press and hold the the upper left button until the seconds unit blinks on the display. Reset the seconds to "00" by pressing the lower right button.
   
   Push the lower left button to switch to the hours unit, which will start blinking. Advance the hour by pressing the lower right button. If you hold down the lower right button, it will advance the hour unit at a higher rate of speed. Once the hour is set, press the lower left button to switch to the minutes unit. As with the hours unit, pressing the lower right button will advance the minutes and holding it down will advance the minutes rapidly.
   
   Once the time is set, press the upper left button to save the setting.
Backlight
2. The backlight on a G-Shock watch has a manual control and an automatic function that will light the face of the watch whenever the alarm, countdown alarm or hourly alarm ring. To use the manual backlight, press the button on the bottom of timepiece. The light will glow for approximately 2 seconds before going out.
   
   The automatic function is set by pressing and holding the lower right button. When the automatic function is set, an indicator icon will display on the watch face above the seconds unit. You can turn off the automatic backlight function by pressing and holding the lower right button until the icon disappears.
   
   Note that backlight causes a drain on the battery, and overuse of the backlight will greatly reduce battery life.
Setting the Alarm
3. The G-Shock has an alarm that emits an audible tone for approximately 20 seconds when it turns on. To set the alarm, press the lower left button until "AL" displays in the upper left corner of the timepiece. Press and hold the upper left button until the hours unit starts to blink. Adjust the hour by pressing the lower right button. As when setting the time, you can advance the hour at a higher rate of speed by holding down the lower right button.
   
   Once the hour unit is set, press the lower left button to advance to the minutes. Use the lower right button to set the minutes. Follow these same instructions to set the month and day you want the alarm set.
   
   When the alarm time and date are entered, press the upper left button to save the setting. Push the lower left button three times to return the G-Shock to "Timekeeping" mode.

Hi greg780,

To use 12- or 24-hour time for your watch, please follow the instructions below.

1. Press and hold the "Set" button for 2 seconds. The "Set" button is on the lower right side.

2. Press the "Date Advance" button on the upper right side. This will reset the seconds.

3. Press the "Change Mode" button on the lower left to set the hour. The hour will flash. Press the "Date Advance" button until the correct hour is displayed.

4. Press the "Change Mode" button again to set the correct 10s unit (first digit 1 or 0) for the minutes. Press the "Date Advance" button until the correct first digit of the minutes is displayed. Repeat this step to set the second digit of the minutes.

5. Repeat Steps 1 through 4 of this section to set the year, month, date and day and whether to use 12- or 24-hour time for your watch.

6. When finished, press the "Set" button (on the lower right) to return to the current time view and lock in your settings.

Hope it helps.

Thank you for using FixYa.

Hi bowingman,

To use 12- or 24-hour time for your watch, please follow the instructions below.

1. Press and hold the "Set" button for 2 seconds. The "Set" button is on the lower right side.

2. Press the "Date Advance" button on the upper right side. This will reset the seconds.

3. Press the "Change Mode" button on the lower left to set the hour. The hour will flash. Press the "Date Advance" button until the correct hour is displayed.

4. Press the "Change Mode" button again to set the correct 10s unit (first digit 1 or 0) for the minutes. Press the "Date Advance" button until the correct first digit of the minutes is displayed. Repeat this step to set the second digit of the minutes.

5. Repeat Steps 1 through 4 of this section to set the year, month, date and day and whether to use 12- or 24-hour time for your watch.

6. When finished, press the "Set" button (on the lower right) to return to the current time view and lock in your settings.

Hope it helps.

Thank you for using FixYa.

Here is what I found....

Hi, I have a 40/6753 and here is what I found to set the watch
................Adj......................Start/Stop

...............Mode
.............................EL
Press and Hold down the MODE button until the display starts to flash that you are Adjusting the alarm. If you need to adjust the alarm here ya go :)
Press the mode button again and it switches from adjusting the ALARM to adjusting the TIME.
At this point the display will be flashing the seconds. Press the ADJ button and it will switch to Adjusting the Minutes. Press the AdJ button to advance the minutes.
Pressing the Start/Stop will switch to Adjusting the Hour. Again pressing the ADJ button will advance the Hour until you get to the correct one.
Once correct press the Start/Stop to switch to Adjusting the DATE. Press the ADJ to advance Month and Day.
Pressing the Start/Stop will finally switch to Adjusting the DAY OF THE WEEK. (little circle to the left hand side). Again, pressing the ADJ will advance the Day until correct.
This took me an hour just pressing buttons until I could figure this out. I hope this helps everyone.
Joe

Posted by: Joe From Oregon on February 04, 2008 at 09:39 PM

Press and hold in the mode button the seconds should start to flash.

Press top right button to select hour.

Press set button to advance hour.

Press top right button to select minutes.

Press set button to advance minutes.

Repeat this for the month/dte/dy/yr

Press mode button when done