IWC Schaffhausen Ingenieur Automatic 40

The IWC Ingenieur Automatic 40, reference IW328907, has a 40 mm steel case. A screw-down crown is set into the case, which measures 10.7 mm thick. Self-winding IWC-manufactured calibre 32111 has a 120-hour power reserve, 21 jewels and 163 components. The blue dial has a date display and central hacking seconds beneath convex sapphire glass with antireflective coating on both sides, and the glass is secured against displacement by a drop in air pressure. The watch is on a steel bracelet. A water-resistance rating of 100 metres applies to the case. The movement's operating frequency is 28,800 vibrations per hour.