I can see why you like the big crowns! For that price range you can make a really nice one, my dial guy has none at the moment but might in the future, it's all about the dial! I spent around 8k us to make this one
Cannon pinions are the same for 10xx and 15xx movements, if it doesn't fit your 1520 it certainly won't fit a 1030, to me they look/sound like they would fit a tudor 390 movement..
You're welcome, I was thinking the seconds hand pinion is long and so it really has to be for a gmt right? Short for no date, medium for date and long pinion is for a gmt.. Anyhow, it seems like you may have a set of service hands for a 6542 but the gmt hand is missing. That's my best guess. Good luck!
I see why you thought that, after comparing them though it's easy to see why they aren't 6538 service hands.
First pic: minute hand has a beveled edge where it mounts to the pinion
6538 hands aren't beveled, they are flat.
Second pic: seconds hand pinion is too long, the 6538 seconds hand has a shorter pinion.
Third pic: the "Mercedes sign" lines are too thick and the tip is supposed to have a larger cutout