Early Races had been mainly timed by stopwatches mounted to motor vehicle dashboards, but given that the complication was shrunk, they have been much more normally noticed on wrists, specifically in the F1 and endurance racing heyday amongst the ’50s and ’70s. Chronographs — with their bezels, scales and sub-dials https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/