TBH though, the majority of Swiss brands, even the spendy ones, are what were called "emboitiers" i.e. they bought bits from the people who made them and then simply assembled the watches and put their own spin on them. Even a lot of what are considered in-house movements are bought in ebauches that have then been modified to spec. Or, in some cases, have been collaborative efforts, like the Gyromatic movements.
If you want something where everything is *genuinely* produced in-house, then look no further than Seiko.
OK, can't vouch for their modern stuff as I believe they now outsource some stuff to China, but it's certainly true of vintage. They were among the first to pioneer vertically integrated manufacture and automation, which is why they survived the 1970s far better than a lot of the Swiss makers. And if you look through the old back catalogues (a fascinating exercise), their ranges were far more varied and stylish than a lot of the Swiss stuff, offering a good mix of mechanical and quartz.
