You know, if I only had a few watches I probably would send them away... but if we assume a three year battery life, I have 24 quartz watches - £85 or thereabouts each time, that's £680 a year spent on something that for the most part can be done myself at a tiny fraction of the cost. Not to mention, all the trips to take them back and weeks without each watch. The 500m Aquaracer had to go back because I couldn't get the back off, but I bet it's just the same inside. I wonder if they put it on with a machine? I guess it has to be super tight for 500M.