goodafternoon,

5 Januari i got this watch on my birthday. but last month it started to mailfunction.The problem occurs when i use the button to set the day (24h anziege) when i want to set the date of the day. it goes from 4 to 15. this problem occurs also when i use the time setting mode with the crown. and this happens also if i let the watch run and when is is day 04 it goes also to day 15.

i dont know what happend here. can you guys help me with this?