Early Races ended up mainly timed by stopwatches mounted to automobile dashboards, but as being the complication was shrunk, they ended up a lot more usually found on wrists, specifically in the F1 and endurance racing heyday involving the ’50s and ’70s. Chronographs — with their bezels, scales and sub-dials https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/