Mike S. February 7, 2023 My Wife And that i are earning our 1st abroad trip soon after over 28 decades of marriage and therefore are headed to Switzerland in March. I have various Seiko automatics, a Magrette diver, a Seiko Turtle Specific edition, a Seiko SPB169, and some others. https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/