Afterward, Arnold’s Chronometers would provide crucial roles in famous voyages, as being the devices aided navigators compute their longitude. Declaring the winner in the race to build the primary automated chronograph in 1969 is contentious business, so Zenith’s “El Primero” moniker is arguable. That’s the title in the motion inside https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/