In contrast, professional tool watches, such as dive watches or chronographs, tend to be thicker due to their design requirements. These watches are built with more robust features, such as larger bezels high quality replica watches, reinforced cases, and thicker crystals, all of which contribute to an increase in thickness. Take, for example, the Rolex Sea-Dweller or the Omega Seamaster Planet Ocean; these watches need extra room to house their water-resistant features, helium escape valves, and other complications designed to withstand the demands of deep-sea exploration.