Early Races were primarily timed by stopwatches mounted to car dashboards, but given that the complication was shrunk, they were far more normally viewed on wrists, specifically in the F1 and endurance racing heyday concerning the ’50s and ’70s. Impressed by British pilot’s watches in the nineteen seventies, Hamilton’s Khaki https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/