Suunto Core has one fancy thing which tells the sunset/sunrise time quite precisely I must say. Knowing the sunset time may be very useful. The altimeter is based on the air pressure at the altitude you set it in, so if you stay at the same altitude and the weather changes, the altimeter will fool you. The termometer will also fool you as it takes 30 mins away from your wrist to tell the correct temp. These photos were taken on a shiny morning turning slowly into a snowfall. At higher altitudes the lectures were worse because of the changing air pressure. I got to climb 600 m while standing on a rock! Otherwise if weather isn't crazy you can have +-100m data. I live at sea level and the Suunto Core sometimes says i'm at -60, sometimes +80...
The built-in compass is very accurate, and I never had problems with the hour/min. It also features a nice glow-in-the-dark tip so set your way. For example you are navigating 45º, find the 0º with the compass, set the glowing tip at 45 (marked in the sphere) and from now on you can use the glowing tip as your guide.
A very nice thing is you can change the batteries yoursef. You just need a coin to open the battery place.
Let's see if someone can tell pro-trek experiences
I'm Australian which means to reach adulthood I've survived horrors you couldn't imagine.
I just bought a Core myself, not a bad little watch. And by little, I mean massive.
For me, the big selling point was the fact that you can change the battery yourself and it remains just as waterproof as it was originally. I hated having to send my G-shock to Sydney for 3 weeks just to get the battery changed and pressure tested to make sure it stayed waterproof.
I've recently bought a G-shock. I needed a cheap watch for running and camping. A kind of watch that if broken or lost won't be missed much. It appears that it was a good decision after all. I know it's not Suunto but it is good enough for me. And it's solar and battery powered .
I had a 'nite' watch. MX50 i think. That was a waste of money, damn thing fell to bits including the bezel and the minute hand falling off the spindle. The Tritium was a nice touch but thats to be had in better watches. Now running a Suunto X-lander, Vector and soon a Core. Both damn good watches. I'd recommend either of them.