My grandfather was a jeweler and watch repairman. He owned 4 jewelry stores in Deshler, Red Cloud, Geneva and Platte Center in the '40s '50s and '60s. As a little kid I used to sit at his bench and watch him do watch repairs.
He told me the most reliable watches he saw were all American and the brands he loved were Elgin, Hamilton and Bulova. No batteries of course, all stem wound. He wore a Hamilton and I had an Elgin. I don't know how many of the high end Euro watches he saw but he didn't talk about them.
I wear a Raymond Weil and I really like it.