It's a chic implementation of a traditional complication – beside the world timer, it however has many of the trademarks of Voutilainen, highlighted by that gorgeous guilloche dial. A paragon of robustness and trustworthiness, the forty mm Oyster situation of the new GMT-Master II is assured water-resistant to your depth https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/