Lots of patina on this well-worn GP, which I’m guessing dates from the 1940s based on the model. The unusual crown at 9 o’clock changes the register at 12 o’clock to enable the user to set a particular time to remember. The hands on that top register move only manually - a curious complication I confess I never use but find charming. Classic Universal Geneve movement. This particular watch has obviously been through a lot, but its original owner was in my family, so I like the visible signs of history. Wears very well too.