Among The list of chronograph’s earliest employs was timing horse races, so Normally, the complication advanced when horses manufactured way for horsepower. Declaring the winner of the race to develop the first computerized chronograph in 1969 is contentious enterprise, so Zenith’s “El Primero” moniker is arguable. That’s the identify from https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/