It Wasn’t until eventually the early 1900s that men started to ditch their pocket watches for wristwatches. (There’s lots of debate close to who manufactured the main Formal wristwatch for men, but for this story, Enable’s go with Louis Cartier, who designed the Cartier Santos-Dumont in 1904 for his pilot https://www.watchesworld.com/11-of-the-best-womens-watches/