It Wasn’t until the early 1900s that Gentlemen started to ditch their pocket watches for wristwatches. (There’s lots of discussion close to who produced the first Formal wristwatch for guys, but for this story, let’s go with Louis Cartier, who created the Cartier Santos-Dumont in 1904 for his pilot Mate, https://www.watchesworld.com/11-of-the-best-womens-watches/