Some popular watch brands are Rolex, Omega, Tag Heuer, Hublot and Casio. Rolex produces luxury wrist watches and is one of the most valuable and recognizable brands in the world. Rolex created the world's first waterproof watch in 1926 and generates more than $4 billion in sales annually.
Rolex watches are famous not only for their quality, but also due to high-profile brand ambassadors like golf star Tiger Woods and tennis star Roger Federer.
Omega is a luxury brand owned by Swiss company Swatch; Swatch bills Omega watches as the first to be worn on the moon. Swatch has provided timekeeping devices for almost every Olympics since 1932 and Omega is the official time keeping device of the Olympic Games through 2020. The Omega brand also appears in the James Bond series of movies as the famous spy's preferred watch.
Tag Heuer is another Swiss luxury wristwatch company that has been creating luxury wristwatches since the 1860s. Most of Tag Heuer's watches are related to cars and racing. Hublot, founded in 1976, served as the official watch for the 2012 FIFA World Cup tournament.
Casio, another popular watch brand, was the first company to introduce the combination analog / digital watch. Casio not only manufactures watches, but also makes digital cameras, calculators and musical instruments. As of 2015, Casio's most popular watch is the G-Shock.