Patek Philippe Aquanaut - 5650G - Single Sealed

The watch that commemorates this milestone — the Ref. 5650 Aquanaut Travel Time “Patek Philippe Advanced Research” — has an 18K white-gold case measuring 40.8 mm in diameter and 11 mm thick and water-resistant to 120 meters. It is equipped with the cleverly conceived dual time-zone function that Patek has used in previous models such as the Calatrava Pilot Travel Time and Nautilus Travel Time, and its self-winding movement features, for the first time, two major technical innovations: an optimized Spiromax balance spring with an inner boss; and the so-called flexible mechanism for the time-zone settings.