I'm using a $ 150-ish Poseidon branded watch, rated to 500 meters ( approx 1600 feet ) depth. Just tells date/time, with rotating bezel. It's a very simple unit, totally reliable, I've had it down to 150'-ish. I'll admit I'll 'blow' $ on very nice dive computers...regs.....BP/wings.....etc, but to me a watch JUST needs to be able to tell time and not implode underwater....and it needs to be cheap enough (expendable) that if it ever does fall victim to abuse/loss, it won't be a big deal. To me anyway, a watch is just a watch and pretty much the most boring bit of kit a diver could possibly have....YAWN....impress me with your really cool light...or computer...or reg instead!