Mike S. February 7, 2023 My Wife and I are building our first abroad vacation soon after above 28 many years of marriage and therefore are headed to Switzerland in March. I've many Seiko automatics, a Magrette diver, a Seiko Turtle Particular edition, a Seiko SPB169, and some Many others. https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/