I have had it since May and a few nights ago it stopped working, the watch display has just crashed..paused..it's still on, but not functioning.
I assumed the battery had just died, so I order two from eBay and..unsure if it was the watch or transmitter that needed replacing I have just done the transmitter one so far (because it doesn't look like you are even meant to remove the watches one, I am scared to!) and it has not fixed any thing.
Should I try and change the watch battery? Any other suggestions?