Introduced in 1997, Aqua Note was popular with Nautilus-inspired, rounded octagonal cases, a fresh design and a waterproof, heat-resistant, high-tech composite "tropical" band. Model. The youthful dynamic index and the three-dimensional waffle dial fuse in a well-balanced manner, emphasizing the spirit of sports while maintaining the elegantness of Patek Philippe. Large and extra large sizes were added in 2007. Many new brilliances have been added, including chronograph models, travel time models and ladies models.