Gruen 1947 Veri-Thin 425-592 Tank
Tank-style watches like this one were popular throughout the 1940s and early 50s. This particularly clean example is also dimensionally larger than typical tanks from the 40s, so it looks a bit more modern on the wrist than many similar examples and it still makes for an elegant dress watch. Typical for Gruens of this era, the 425 movement is Swiss, while the case was manufactured in the USA.