Early Races had been largely timed by stopwatches mounted to motor vehicle dashboards, but since the complication was shrunk, they have been more normally seen on wrists, specifically in the F1 and endurance racing heyday concerning the ’50s and ’70s. Complication: Refers to any observe motion beyond The easy tracking https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/