Thank You on your type and in-depth critique! We're grateful to you personally for appreciating the Skilled products and services supplied by Watches World! Declaring the winner on the race to make the 1st automatic chronograph in 1969 is contentious small business, so Zenith’s “El Primero” moniker is arguable. That’s https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/