The 1955 model is referring to, is shown below.This fairly large time piece for that era of 36.5mm had this new winding system by the name of one of their directors, Albert Pellaton. This new winding system was especially useful for watch makers, replica audemars piguet watches who now could simply disconnect the automatic winding system and the barrel of the watch to do repairs on the main spring or escapement, without removing the winding system in total. Also, the Pellaton winding system used an innovative way to make the movement as shock proof as possible, by using this flexible (winding)rotor bridge.
This Pellaton winding system is still present in a number of IWC watches, including the current line-up of Ingenieur models. replica omega Olympic Series watches Below, you see a close-up of the current caliber 80110 movement that has this shock proof Pellaton winding system.In 2008, IWC introduced the Vintage Collection in order to celebrate their 140th anniversary. One of the watches in this collection was the Ingenieur as you can see in the Dimers excellent photograph above.As you can see, the photograph of Dimer and the vintage IWC catalogue replica a lange soh replica chopard Mille Miglia Rubber Strap watches image above do not match that well. Although the hands, case design and Ingenieur print on the dial remind us of the vintage model, there are quite some differences to observe.