Start Stop button won't stop the workout

indicates you need to change the battery

On your Suunto Core press and hold the mode button for two seconds to get to the menu.


Select "Units."

Under "Units" select "Time."

Under "Time" you have the ability to select "12" or "24."

I took the battery out and then replaced it and the watch started to function properly again!

I too was frustrated with this one. I played with the watch until I found the solution... Hope this helps!

For some reason I needed to be in the training mode to do this.

From the Time/Date mode, do the following:
1.) Press the start/stop button (upper metal button) to get out of Time/Date mode
2.) Press the Training side of the bezzle. You will see a workout display.
3.) Touch the GPS side of the bezzle until "to location" shows up
4.) Press the lap/reset button (lower metal button) to display a menu (may have to do this a couple of times, eventually when you release the button the menu does show up)
5.) Slide downward through the menu options until you find GPS
6.) Click the start/stop button (upper metal button) to toggle the gps on or off
7.) Press the lap/reset button (lower metal button) to exit the menu (goes to the "to a location" screen)
8.) Press and hold the Training side of the bezzle to return to your training screen

hey there here is the online manual for your watch

http://media.suunto.com/media/suunto/manuals/multilangual/Altimax_Vector_X-Lander_S-Lander_multi_25257.pdf

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.
   

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.

ALARM AND HOURLY CHIME

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.

CHRONOGRAPH

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.

Have fun! - Not a bad watch for the money! - - Silver Bullet

On this type of watch the second should not be working unless you are in the chrono mode. The lower dial should be the only indication of the seconds when not in chrono mode. You probably need to have the chrono reset and shown how the functions work. Try a Fossil location they will be able to tell you how to work this watch. It does not sound like this is a major problem.