Mike S. February 7, 2023 My Wife and I are producing our initial abroad vacation soon after over 28 yrs of relationship and therefore are headed to Switzerland in March. I have many Seiko automatics, a Magrette diver, a Seiko Turtle Distinctive edition, a Seiko SPB169, and some Other folks. https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/