IWC Ingenieur Automatic SL Khanjar Dial ref 3505 Steel and Gold ExecutionThe IWC Ingenieur has always been a watch shaped by its time. Originally conceived by IWCs technical director, Albert Pellaton, the Ingenieur was developed as a response to the growing presence of electronics. Its soft iron inner cageessentially a Faraday cageprotected the movement from magnetism, while the efficient Pellaton winding system ensured reliability. A true technical watch, created with purpose. By the 1970s, the watch world was changing.