The watch stops instead of the chrono

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 resume lap timing.
5. Press START/STOP to stop timing . Press ADJUST to reset chrono to zero.
6. Repeat for successive laps.


Have fun :)

pull the crown out to second position press start button till it goes to 12 push crow back in,,,,,,,

mcdevito75 here, generally you"d press the chrono button to start the chrono and press again to stop it, NOW! press the chrono button again to re-set it. Should work.

mcdevito75 here, Just a guess but here goes, start the chrono, now stop the chrono, the button you used to stop the chrono, press it again to retun to zero. Hope this helps.

The Timex Ironman 30 Lap also has a stopwatch that can be used to keep track of split times for racing sports like running or cycling. Press the "Mode" button until the display shows "Chrono," then press and hold the "Set/Recall" button. To start the timer, press the "Start/Split" button. It will continue to run even if you exit to another mode. Pressing the "Stop/Reset" button will stop the chronograph. To record a split time, press the "Start/Split" button again while the timer is running. To see your split times, press the "Set/Recall" button while the watch is in Chrono mode. You can then scroll through the various splits with the plus and minus keys. Press "Set/Recall" again to exit display mode and return to the timer.

The crown at 3 o'clock is used to set the time and change modes. The crown at 9 o'clock is used to rotate the flange at the edge of the dial.
The A button at approximately 2 o'clock starts and stops the chronograph function. The B button at approximately 4 o'clock resets the chronograph.

Lap Timer: When the watch is displaying normal time, press the right side crown to switch to chrono mode (the hour hand will indicate CHRONO). This watch measures lap times, press A to start timing the first lap. Press A again to stop the first lap and automatically start timing the second lap (the hour hand will move to indicate you're on the second lap), and so on. You can measure up to 20 laps this way. When you're fininshed timing laps, press the right side crown to see the best lap time. To reset the lap timer, hold down B for 2 seconds. To switch out of chrono and see the normal time, just press the right side crown in.

Chronongraph: To time an interval that is not a lap, just follow the above instructions, but instead of pressing A to stop the first lap, press B and the watch will show the elapsed time to the nearest 1/100th of a second. Hold B to reset.

Crown at 9 o'clock: This crown rotates the inner flange at the edge of the dial and is used to measure total race time (i.e. the total of all the laps). Simply rotate the crown until the the little start trinagle on the flange is aligned with the minute hand. This way, the total elapsed time can be read at any time, similarly to how a rotating bezel works.

To set the time: Ensure the watch is not in CHRONO mode, if so, press the right side crown in. At this time pull the right side crown out until you feel a click.The position the second hand moves to indicates what is currently being set. If the second hand is at 9 o'clock, you are setting am hours, press A repeatedly to set am hours. Then press B and the second hand will move to 6 o'clock, pressing A repeatedly will set the minutes. So on for year (11 o'clock), month (12 o'clock), and day (1 o'clock).

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.

ANALOG TIME
Pull CROWN and turn to set HOUR and MINUTE hands. TIME AND DATE A. Press and hold SET. SECONDS digits will flash. B. Press SPLIT/RESET to set SECONDS to zero. C. Press MODE to select HOURS. D. Press SPLIT/RESET to advance hours digits. Go through 12 hours for AM or PM. E. Press MODE to select MINUTES, press SPLIT/RESET to advance. F. Repeat to set MONTH, DATE, DAY, 12- or 24-hour time display. G. Press SET when done. BASIC OPERATIONS Press MODE to cycle through CHRONO, TIMER, and ALARM modes. Press INDIGLO to illuminate watch face. In any mode, press MODE to view time display. Press any button to stop alarm or timer beeps. INDIGLO INDIGLO CHRONOGRAPH A. Press MODE until CHRONO appears. B. Press START/STOP to start. C. Press SPLIT/RESET to record lap time. Display pauses. D. Press MODE to resume display of lap and split time (automatic after 10 seconds). E. Press START/STOP to pause chrono. F. Press START/STOP to resume. G. Press START/STOP to stop. H. When timing is stopped, press SPLIT/RESET repeatedly to recall last eight lap and split times. I. Press and hold SPLIT/RESET to reset chrono. MODE MODE START/ STOP START/ STOP SPLIT/ RESET SPLIT/ RESET SET SET CROWN COUNTDOWN TIMER A. Press MODE until TIMER appears. B. Press SPLIT/RESET to select timer operation (Countdown and Stop; Countdown and Repeat; Countdown and Start chrono). C. Press SET. HOURS digits will flash. Press SPLIT/RESET to advance digits. D. Press MODE to select TENS of MINUTES. Press SPLIT/RESET to advance. E. Repeat to set MINUTES, TENS of SECONDS, and SECONDS. F. Press SET when done. G. Press START/STOP to start timer. H. Press START/STOP to pause, press again to resume. I. When timer is stopped, press SPLIT/RESET to reset timer. Watch will beep when countdown reaches zero. ALARM AND CHIME A. Press MODE until ALARM appears. B. Press SET to select HOURS. Digits will flash. C. Press SPLIT/RESET to advance digits. Go through 12 hours for AM or PM. D. Press MODE to select TENS of MINUTES. E. Press SPLIT/RESET to advance. Repeat for MINUTES. F. Press SET when done. G. Press START/STOP to turn alarm on or off. H. Press SPLIT/RESET to turn chime on or off. When alarm time is reached, watch will beep for 20 seconds, or until any button is pushed. Alarm will repeat every 24 hours until deactivated. INDIGLO® NIGHT-LIGHT WITH NIGHT-MODE® FEATURE A. Press INDIGLO to activate light. Patented (U.S. Patent Numbers 4,527,096 and 4,775,964) electroluminescent technology used in the INDIGLO® night-light illuminates watch face at night and in low light conditions. B. Press and hold INDIGLO for three seconds (beep will sound) to activate or de-activate NIGHT-MODE® feature. C. While in NIGHT-MODE® feature, press any button to illuminate watch face for 3 seconds. Chime on Alarm on If your watch is water-resistant, meter marking or ( ) is indicated. Water-Resistance Depth p.s.i.a.* Water Pressure Below Surface 30m/98ft 60 50m/164ft 86 100m/328ft 160 *pounds per square inch absolute WATER AND SHOCK RESISTANCE WARNING: TO MAINTAIN WATER-RESISTANCE, DO NOT PRESS ANY BUTTONS UNDER WATER. 1. Watch is water-resistant only as long as lens, push buttons and case remain intact. 2. Watch is not a diver watch and should not be used for diving. 3. Rinse watch with fresh water after exposure to salt water. 4. Shock resistance will be indicated on the watch face or caseback. Watches are designed to pass ISO test for shock resistance. However, care whould be taken to avoid damaging crystal.

I also own a PRS200. The two buttons on the right and top two subdials are for the chronometer function.

The top right button starts and stops the chronometer function: First press starts the chrono. Second press freezes/stops it, so you can record your time. Third press resets the chrono.

The bottom button is for the lap function: on the first press, it freezes the chrono in order for you to be able to record your "lap time", but keeps the chrono running in the background (you don't see this, it's the movement that does this mechanically). When you press it a second time, it jumps back to the running chrono time. You can then press it again to get another lap time, and so on...

In chrono mode, the top right subdial shows the milliseconds, the second hand shows the seconds, and the top left subdial shows the minutes (up to 30 minutes).

If you have your instruction manual it should tell you how to reset the chrono. i have the Luminox 8352 and it says to pull the crown out to the 3rd position. then press and hold both the start/stop and lap/reset buttons for a couple of seconds. you'll see the second hand rotate, then you can single click the start/stop button to manually move the second hand 1 second, or you can hold it and it will continue move for a longer period until time desired. if you need to adjust the other chrono hands, click the lap/reset button and then you can click the start/stop button again. repeat for the minute/hour chrono hand. when you're finished push the crown back in. it might work even though it's a different model, worth a shot? hope that helps. these are really great watches.