Can't go wrong with the GMT. I was contemplating the Milguass, but for the price and if you really need the guass rating, the Omega is a better value. Omega has higher rating for electromagnetic field, but to be honest who's really buying the Milguass for magnetic field protection. The GMTIIc and the independent hour change when traveling is brilliant. Also it can switch from casual wear to formal very easily because of the polished center links.