The Orient Mako Kamasu RA - AA0812L19B is great for sports enthusiasts and watch collectors. You can wear it while swimming, diving, or during your daily activities. The watch has a case size of 41.8mm from 3H - 9H and 46.8mm from 12H - 6H, with a thickness of 12.8mm. The band width is 22mm, making it comfortable for most wrists.