Originally Posted by der_saeufer

Casio F-91W is the only answer to this question. Mechanical or not, what other watch can you get for $10 that'll get you that much attention from customs officers and intelligence agencies and that little attention from thieves?

In all seriousness, my favorite travel watch until I gave it away was a Casio MDV106 "Marlin". Definitely the nicest-looking watch you'll ever see for $40.