[G per email 28-07-15]
Whilst on my wrist, the watch started making a grinding / grating noise and I could actually feel a small amount of vibration on my wrist. When I looked at the watch, it had stopped working and the hands no longer turn. When you try to turn the dial now, all the hands turn faster than they're meant to. 
I have emailed a copy of the warranty card to the email address shown. 