With the development of electronic and mechanical engineering in the 1950s, in 1955 an ingenie with excellent magnetic resistance was announced. The name of the engineer in German is named after the model name. The design at the time of the announcement was a simple round type, but in 1976 the design changed completely. Ingenieur SL, created by Gerald Genta, the most renowned watch designer, is still alive as a design concept for the Ingenieur series. In the past, some models boasted a magnetic resistance of 500,000 A / m (6250 gauss), and there is no doubt about their specifications. Ingenia, which had been discontinued at one time, revived in 2005. In addition to being upsized to the present age, in 2007 a non-magnetic model was derived. It is a model that is very much watched for future trends.