One Of the chronograph’s earliest employs was timing horse races, so In a natural way, the complication progressed when horses built way for horsepower. Declaring the winner from the race to make the primary automated chronograph in 1969 is contentious organization, so Zenith’s “El Primero” moniker is arguable. That’s the https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/