The history of https://www.replicarolexit.to/categoria-prodotto/air-king/ experimentation with high frequency escapements at Longines starts in 1914, in stopwatches. These had 36,000 vph movements, and they were used, among other things, https://www.fausserolex.to/categorie-produit/gmt-master/ as timers in the https://www.orologi-lusso.com/category/replica-panerai/ Olympic games, which by the late 1930s had reached a level of competitiveness where tenth-of-a-second timing had become critical in telling winners from losers.