Mike S. February 7, 2023 My Wife and I are creating our 1st abroad excursion soon after about 28 yrs of relationship and are headed to Switzerland in March. I have various Seiko automatics, a Magrette diver, a Seiko Turtle Distinctive version, a Seiko SPB169, and a few Many others. https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/