I bought this watch on group on in UK. This watch runs about 5 to 7 minutes faster per day. I did not use or demage it before. I do not know the reason why this happened. I hope you can change a new one without any problems for me. And my address above is available to 28th of July, 2013 because I will move out after that date. So please delivery my watch as soon as possible. Thank you very very very much!