This attractive IWC Ingenieur is modern interpretation of the older Ingenieur SL reference 1832 which was designed by none other than the great Gérald Genta. After designing the Royal Oak and the Nautilus, the master designed the third generation of their Ingenieur-line, which was released in a radically different design. The cushion-shaped case features 5 distinct recesses in the bezel which are used to apply the screwing tools and further serve as decoration for the watch. s produced until 2009.