Among The list of chronograph’s earliest works by using was timing horse races, so Normally, the complication advanced when horses produced way for horsepower. Declaring the winner on the race to make the 1st automated chronograph in 1969 is contentious company, so Zenith’s “El Primero” moniker is arguable. That’s the https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/