Basic Casio and Timex will last forever, most reliable watch I have ever owned was a Casio F91W, sadly it was destroyed through no fault of it's own. They're good enough for Marxist fighters, Islamic insurgents, members of actual military forces and police units throughout the world, it's good enough for you :P
http://www.casioca.com/products/Watches/Classic/F91W-1/
There's no need to drop more than $120 MAX on a watch if all you want is function.