Which watch should I get: Seamaster or GMT and which one is better?
Do you have a need for the GMT’s features? If so then you should strongly consider it. The GMT omits the Helium Escape Valve, but has the same Water Resistance as the regular Seamaster. Otherwise, go with the one whose looks you prefer. They’re both great watches, and you can’t go wrong with either one. The best one is the one that makes the most sense for you.