The International Watch Co. or IWC was founded by an American engineer and watchmaker named Florentine Ariosto Jones in 1868. He set up the wristwatch factory in Schaffhausen in the Eastern part of Switzerland. IWC has been creative over the years designing their watches and was the first to use titanium during the manufacturing process. The Caliber 89 movement was a mechanical wound movement that powered IWC models from the 40s until the 90s. It was both highly accurate and durable as well. The IWC Aquatimer was the first diving watch developed in 1967 and today is featured as Aquatimer 2000 and can have chronograph function as well. The most popular IWC watches today are in the Portuguese family such as the Perpetual Calender II, Automatic, and the the Portuguese Minute Repeater. Aviation is also represented in the Pilot watch family and they include chronographs, Spitfire, Big Pilot, and Top Gun. More classic styles are the Portofino and Ingenieur timpieces. IWC watches are manufactured in stainless steel, carbon, white gold, pink rose gold and platinum.