Early Races had been typically timed by stopwatches mounted to car dashboards, but since the complication was shrunk, they ended up much more frequently found on wrists, particularly in the F1 and endurance racing heyday amongst the ’50s and ’70s. Chopard's Mille Miglia collection celebrates the world's most beautiful race. https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/