What battery does a gap sport watch use - Gap Digital Sport Watch

what does it say on the back of the watch

if Water resistant don't do more then wash you hands with the watch

press and hold the mode button to change to different function

Just press Start and Reset at the same tie

Just press Start and Reset together.
If it is not working please show the watch to a watch Mechanic ??.

try this link below
http://www.mademan.com/mm/how-set-gap-sport-watch.html

If the watch #/size is not printed on the back of the watch, you will actually have to remove the battery to figure out what size you need. Best regards.

good day,
hope this link below will solve your problem.

watches

You will need to remove the wrist first before the cover will come out.Else pull the wrist out and allow it to leave a gap and then you can move the cover out.

For setting Time & Date...
1. Push "MODE" button three times (change Mode to TimeSet)
Time -> StopWatch -> AlarmTimeSet -> TimeSet -> Time ->...
2. Flashing Second Number Digits
3. Push "RESET" to select...
Second -> Minute -> Hour(12hr<->24hr) ->...
Date -> Month -> Day of Week -> Second -> ....(repeat)
4. Use "START" to set each item...

For setting Alarm ON/OFF
1. Push "RESET" button then Push "START" same time...
Alarm ON -> Alarm OFF -> ... (repeat)

how do you set time?