I know this is a 'How long is a piece of string?' question, but I wonder if any members have experience of both of these Pro Trek models, as I want to get one or the other. I have studied the specs on each, and they are very similar, with the PAW1500 having the Tide and Moon data extra, plus a better water resistance (200m rather than 100m for the PAW1300), but I'm sure I read on one of the forums that the PAW1300 had the edge for some reason (I've forgotten what, and can't find the old post!). I want a Solar powered, Atomic regulated Casio with 2 straps, and built in strap adaptors so I can swap for a Nato or something if I like (I don't get on with resin or rubber straps). Any views on which would be the better watch?