the date and month is suddenly changed when it´s not supposed to and after abour three days the timer is set back aproxomatly 10 min every time so i have to adjust it all the time, i followed the instructions when i got it but it doesn´t seem to run propably,  and from just using it as a daily watch, i have gotten three small schratches on the special hardened mineral glass, it´s not supposed to get a scratch in the glass from regular use.