It really is an elegant implementation of the vintage complication – beside the world timer, it still has all of the emblems of Voutilainen, highlighted by that lovely guilloche dial. When your Omega has the phrases 'Master Chronometer' to the dial—as is witnessed from the Seamaster Diver 300M—it is possible https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/