Mike S. February 7, 2023 My Wife and I are producing our 1st overseas excursion just after over 28 years of relationship and therefore are headed to Switzerland in March. I have numerous Seiko automatics, a Magrette diver, a Seiko Turtle special edition, a Seiko SPB169, and some Many others. https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/