I bring a plain old wristwatch and I do consult it, but I don't let it dictate my activities. I find it is an easier way to judge the time than trying to estimate how high above the horizon the sun sits. It gives me another method for estimating the distance I've walked, since I tend to walk at about 2 mph with an almost frightening predictability. It helps time my dinner's rehydration, too.

Altogether it is just another useful tool, and not a high priority one.