I am someone whose watch has a function. But before I go into that I will state that I have noticed with myself as a youngster and my kids, we all wanted watches, so you buy one and then you never wear it. There is some stage at your life when you really need to know the time and you need that watch and you put it on and never take it off. I hear a lot of people say now : "I don't wear a watch because I have my phone". My watch now is a Sunto that has a built in GPS unit and I use it to track (but not navigate) where I have been in the mountains/wilderness.

It will be interesting to see how this watch thing develops....