Hi i have been spearfishing for the last 2 years for fish and have been doing it for octopus for the last 9 years.i am trying to add some more depth and length time to my dives as in shallow waters you dont find so much fish anymore and when you do they see the speargun and disappear.i like to dive alone though its risky shw etc etc etc.but now i wanted to buy a diving watch at least to know at what depth and for how long i am there.anyone knows about some good ones that are not rocket high expensive thanks a lot