Stumbled upon this thread and thanks to the OP...
Though I like my Rolex GMT IIC the best pilot watch for keeping track of multiple time zones is my Glycine Airman 7. It is ridiculous ginormous but form follows function and it doesn't get any better than 3 clear as day time zones (4 if you cheat and use the less legible 24h hand).
The GMTIIC always needed a locking bezel...too easy to accidentally bump the bezel forward/back and confuse yourself. That plus it's too difficult to read/not as legible as the Glycine.
Now if they only added a chronograph....
