By the 1930s, wrist watches were worn by both genders, though men’s wrist watches rose in popularity. Women’s wrist watches of this era often followed the current fashion trends, and incorporated gemstones like diamonds, emeralds, and sapphires. These watches were thinner and more feminine than men’s wrist watches of the time. Many of the top watchmakers made women’s watches, including Patek Philippe, Audemars Piguet, and Cartier.