One Of the chronograph’s earliest takes advantage of was timing horse races, so The natural way, the complication developed when horses manufactured way for horsepower. Declaring the winner in the race to construct the initial computerized chronograph in 1969 is contentious enterprise, so Zenith’s “El Primero” moniker is arguable. That’s https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/