Here's a watch brand that's often overlooked, Ochs und Junior
They're all designed by Ludwig Oechslin who is, with no exaggeration whatsoever, a fucking genius when it comes to watchmaking
Their flagship piece is their perpetual calendar, where other brands use a couple of hundred parts over the base movement to make that complication Oechslin found a way to do it in 9
They've also got a pretty neat take on a dual time zone watch and one that shows you length of day