This watch was working good and it stopped working all of a sudden. No defect seen from outside. I am not sure how it happened?? I got it through Group On Australia website. Took a long time to find about what to do?? Bit disappointed. Hope your help will be good.. When I can send the watch?? And do I have to send warranty card as well?? Or I can just send copy of it?? Please let me know. Regards Kamal