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