Down The road, Arnold’s chronometers would provide significant roles in famous voyages, as being the devices served navigators estimate their longitude. Declaring the winner with the race to create the very first automated chronograph in 1969 is contentious small business, so Zenith’s “El Primero” moniker is arguable. That’s the name https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/