If you want to go the old style GMT (slaved 24 hr dial) route(rotate bezel to set GMT hour).Vostok has some models that might suit you for super cheap. https://meranom.com/en/amphibian-classic/17/vostok-watch-amphibian-classic-17036b.html
-20 to +60 is the factory range but you can adjust it easily by yourself. (I recommend google and YouTube before attempting)
It’s not the most accurate compared to modern movements, but it’s functional watch. I recommend DHL for shipping (will only show up if you just buy watches no accessories.)