What is a bezel in watchmaking?

In watchmaking, the bezel plays a crucial role as it is the rim that encloses and secures the watch crystal, which is the transparent cover over the face of the watch. This component is not only functional, providing protection for the crystal and helping to keep contaminants out of the watch, but it can also have aesthetic qualities, as bezels come in various designs and materials that can enhance the overall look of a timepiece. It's important to note that bezels can serve additional functions as well, depending on the type of watch—such as rotating for dive timing or other specific measurements. Understanding the function of the bezel is fundamental for those studying the intricacies of watch design and mechanics.