The best sports watches of the 21st century, plus historical and technical comparisons of top models from leading brands like Bretling, Chronoswiss, Omega, and others. In this guide to modern sports watches, discover honest assessments of luxury sports models, many varieties of chronographs, GMTs, and extreme diving watches, represented by the best sports brands in the world, including Patek Philippe, Breitling, Omega, Chronoswiss, and more. But first, what exactly is...