Carbon fiber is incredibly strong and lightweight — a combination that's useful for creating watches. Yet somehow no one had built an automatic watch with a full carbon bracelet until Zenith unveiled the Defy Classic Carbon. Each link of its integrated bracelet is a solid piece of carbon fiber, precision-milled to highlight the material's unique layers. As a result, no two pieces are exactly alike. The 41mm case is also made from carbon fiber and holds an open star-shaped dial providing views of an automatic Elite movement that's given a ruthenium treatment to match the carbon. Weighing just 65 grams in total with the carbon bracelet, it's also available in a more affordable version that ditches the bracelet for a black rubber Cordura-effect strap.