To comply with the new e-Privacy directive, we need to check with on your consent to set the cookies. Learn more So If the Omega has the terms ‘Learn Chronometer’ around the dial—as is observed In this particular signature Omega Seamaster Diver 300M Co‑axial Master Chronometer—you may be assured that https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/