Now, after several hours of testing, the watch seems to work again. When the watch arrived, it was not clear in witch state the chrono mechanism stand, because the watch was not running i could not see if she was in chrono counting or not. So, when you made the settings as described on the webpage, be careful what you are doing. In my case the chrono was probably in running state and all setting attemps failed, the watch dont start working. Now the watch worked for more than 12 hours and i am happy that everything is fine :-) cheers