The Patek Philippe Aquanaut, launched in 1997, is a model of casual elegance that combines technical perfection with uncompromising performance & imaginative creativity in design. Its fascinating appeal originates from a surprisingly modern form with a gently rounded octagonal shape. 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.