How do I change time between 12/24 hour format on seiko sport 100 digital/ analogue watch

SOURCE: how do I change time on timex watch?

These are settings for the Timex SPORTS 1440 Magnetism (5b841 -W163US)
These are for the 4 button SPORTS 1440 (not 6 button) - they will also work for the 1440 SPORTS "Informer" model wrist watch - you will NOT find these instructions on the Timex website - only the 6 button which will not work on these watches is on that site!

TIME AND DATE

1. Press and hold MODE until HOURS digits flash (you'll be in Alarm Mode) Press MODE again to enter TIME mode, SECONDS digits will flash.
2. Press ADJUST to set SECONDS to zero.
3. Press START/STOP to select MINUTES.
4. Press ADJUST to change.
5. Repeat to set HOURS, MONTH, DAYS, and DAY of WEEK. Go through 12 hours to set AM or PM.
6. Press MODE when done.
7. To display DATE from Time display , press START/STOP.
8. With DATE displayed press and hold START/STOP, then press ADJUST to change display between DATE-MONTH and MONTH-DATE.
9. With TIME displayed, press and hold ADJUST, then press MODE to switch between 12-and 24-hour format.

1. Press and hold MODE until HOURS digits, DAY, and A or P (for AM or PM) flash.
2. Press ADJUST to change HOURS digits. Go through 12 hours for AM or PM.
3. Press START/STOP to select MINUTES.
4. Press ADJUST to change.. Press MODE when done.
5. Press and hold ADJUST, then press START/STOP to turn chime on/off. Press START/STOP again to turn alarm on /off. Release START/STOP when done.

1. Chronograph will count up to 24 hours. Lap times are not stored. After 40 minutes chrono display changes from seconds to minutes.
2. With time displayed, press MODE to select Chrono Mode.
3. Press START/STOP to start.
4. Press ADJUST to view lap time. Press again to sesume lap timing.
5. Press START/STOP to stop timing . Press ADJUST to reset chrono to zero.
6. Repeat for successive laps.

SOURCE: timex 1440 sports digital watch time setting

1. Press and hold the mode button until it starts to blink, then release.
   
2. First the alarm time will come up.
   
3. Press the mode button once to get to the time and date.
   
4. The seconds will flash first. 
   
5. Press the st/stop button to toggle between the seconds, hour, minutes, date (month and day) and day of the week.
   
6. Press the lap/reset button to change the values.
   
7. When done, press the mode button again to return to normal.
   

SOURCE: casio telememo 30 syncronising analogue and digital time

To set the analog time to match the digital time...
There are 4 buttons: top left=A, top right=B, lower left=C, lower right=D

Get the watch in timekeeping mode (where it shows the digital time or date)
Press C six (6) times
Hold down A until the current digital time begins to flash
Press D repeatedly to advance the analog time, one minute at a time.

If you need to advance the analog time at high speed, HOLD D DOWN.

To return to regular timekeeping mode, press C

Set the digital time so that it matches the analog time, since you can reset the seconds easily.

SOURCE: how to set up ladies roxy digital watch

I found users instructions on roxy website at:
http://www.roxy.com/search/index.jsp?f=Taxonomy%2FROXY%2F2818169&categoryId=2818071&f=Taxonomy%2FROXY%2F2818071&fbc=1&fbn=Taxonomy|Watches&fbx=0

We were able to program our watch completely!!!

If you look on the back of the watch that you bought on the metal plate, it tells you the style. Ours was the Roxy 70's digital watch, and I found specific instructions at (even if this is not your style, the instructions may work):
http://www.roxy.com/graphics/uc/roxy/manuals/Roxy_manual_watch_70s.pdf

SOURCE: I have not worn my SEIKO kinetic wrist watch for a

Here is the information from the website. The link to the manual is provided below. HOW TO CHARGE AND START THE WATCH Swing the watch from side to side approximately 50 times. * Before swinging the watch, check and remember where the minute hand is so that you can tell if the start-up indicator has worked or not. First, check that the crown is at the normal position. * If the crown is pulled out and the watch is swung, the start-up indicator will not work even if the watch starts operating. * Swing rhythmically at a rate of twice a second. * No additional benefit is obtained by swinging the watch more quickly or with greater vigor. * When the watch is swung, the oscillating weight in the generating system rotates to drive the mechanism. As it rotates, it gives out a sound, which is not a malfunction. 1 2 The minute hand moves quickly and stops as the watch starts operating. (Start-up indicator) Then, it will move at 20-second intervals. 3 After checking that the minute hand has done this, pull out the crown to set the time. 4 After pushing back the crown in to the normal position, swing the watch further approximately 350 times to reserve one day of power, and then, put the watch on your wrist. http://www.seikowatches.com/support/ib/pdf/1m20_e.pdf Good luck, Techjoel