I try to set my nexxtech watch . I can't find the way to set the clock ... could you advice me how ?

probably is used when timing something
make sure it is in the clock mode and the stop watch mode

http://www.extech.com/instruments/resources/manuals/365510_um.pdf
These instructions work for the nexxtech 6315002A

If I understood correctly this watch have a analog watch display ..and it is half an hour forward..but when you set timing or the alarm it behave normal ..and so the internal one is correct ..but just do not display the correct time on the analog one ...If it do not have any means to correct manually the analog watch ..I advice to try to remove all power and stop the indicators at the exact time ...(a sharp hour...) and power it back after the exact time it is forwarded ....This way the analog clock will be stopped..and the internal one will go on and will adjust at the spot by the radio time ..and you will have both timers in correct display ...If it does have buttons or so in the back ..try to correct them by hand ..

UTC is coordinated universal time, based on GMT.

Try setting your watch to "JED", as you are on the same longitude as Jeddah.

These basic instructions are for most digital watches (and these are for regular to military but you can just follow same instructions to get to oposite) Hope this helps!

1. Press the "MODE" button---usually on the lower left side of the watch, but sometimes on the right center side---to cycle through to the time display.
   
2. Press and hold the "SET" button---usually on the right lower side of the watch---until the seconds flash.
   
3. Press "MODE" repeatedly to cycle through the displays that flash: from hours to minutes to month to date and day. At the end of the cycle is the hour display option. Make this option flash.
   
4. Press the "SPLIT/RESET" button below the face of the watch to change the hour display option to "24-hour display." This is the same as military time. If there is a "NEXT" button on the upper-right side of the watch, use this to advance to the 24-hour option instead of using the "SPLIT/RESET" button. You may need to press a "START/SPLIT" button instead a "SPLIT/RESET" button to cycle between 12- and 24-hour display. The "START/SPLIT" button could be located below the watch face or on the upper-right side of the watch, depending on the model.
   
5. Press the "SET" button again. You are now done. All PM hours should be displaying hours between 12 and 23.
   

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mcdevito75 here, Sometimes not useing a watch is just as bad as over use. Try to set the time and move the hands around a bit, the mechanism is most likely a little stiff, you can also try to tap the watch with something that won"t hurt the finish, (Handle of a Steak knife) at the 2--and 4 O"clock position on the watch and at the 9 O"clock position on the watch caseing not the crystal (glass)

hi there,
can't find anywhere near your place. But i got you a number that you can call and ask.
1-866-454-4426

Press the mode button until you find the setting for 24 hour or 12 hour setting. (It is likely that the message will be abbreviated because of the limitations of the display, so some interpretation may be needed.).

You change the setting by pressing one of the other buttons on your watch - some experimenting may be needed.

Press all the four buttons simultaneously your digital clock gets resetted. It worked for me try it out.