For field use, I use the Nixon Scout watch. Tough as nails, cheap, tells time.
For back home, I wear a Rolex Submariner Oyster Perpetual(non-date). I love this watch. It is simple and retains it's value. I like Omega watches too, but I do not own one. The Tissot is a cool watch as well, and if I were to get a gadget watch, that would be the one. I do own a Garmin Forerunner 301 which is a great little gadget for running.
Watches I do not like. The cheap crap from Timex. I have busted more watches from Timex than I care to mention. To me, the Nixon Scout is a watch you can beat up(designed for snowboarders and skater kids), and it looks like a hybrid military watch. Stylish too. The big one with the Scout is that the band has no velcro. It has an all stainless steel buckle. I wore this watch all over Iraq, and it did not corrode and took the abuse well. And when you work around heavily armored vehicles like the Mamba or Casspir, you better have a watch that can take some abuse.
I own the green Scout.
And the Submariner.