Early Races were being generally timed by stopwatches mounted to car dashboards, but because the complication was shrunk, they have been far more usually viewed on wrists, especially in the F1 and endurance racing heyday involving the ’50s and ’70s. The Speedmaster gets all the adore in Omega’s chronograph lineup, https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/