A. Serotonin: Often related to mood regulation and feelings of properly-getting, serotonin plays an important role in modulating feelings like joy and contentment. If the Omega has the phrases 'Master Chronometer' around the dial—as is found during the Seamaster Diver 300M—you may rest assured that its timekeeping is par excellence https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/