The Patek Philippe Aquanaut, launched in 1997, is a model of casual elegance that combines technical perfection with uncompromising performance and imaginative creativity in design. Its fascinating appeal originates from a surprisingly modern form with a gently rounded octagonal shape. The surface structure of the superbly finished landmark dial reflects the attractive texture of the strap. The complex construction of the case is underscored by the screw-down crown for extra protection on the wrist of active people. The “Tropical” strap, made of a high-tech composite, is soft, comfortable, resistant and hypoallergenic.