It’s amazing how that thing can be dressed up. Kind of like seeing your mechanic friend who is always i in coveralls and smeared with grease wearing a suit-you have to do a double-take.
That is a beautiful looking watch. So was the Longines sold to the German Navy at some time? I ask because I have a modern Laco Navy 36 which, according to Laco "The requirements to start constructing them came from the German Marine Observatory in Hamburg, and only a few factories were able to fulfill them in the 1940s. Laco was one of those companies. Today's watches are still oriented toward the look of yesteryear in their appearance."