Known to many collectors as the reference 325, this model is actually the birth of the line and is considered the original Portuguese. According to IWC, the watch line was created when a Portuguese client requested a wristwatch with the same accuracy and size as a pocket watch and in response the first Portuguese watch was created. Interestingly, most of these early examples were delivered to Eastern Europe, probably due to many restrictions linked to World War II, and this example in particular was sold to Vienna. While there are 3 generations accepted by collectors of reference 325, this is part of the first generation and according to IWC was only made in 304 pieces and is one of the most important IWC wristwatches ever manufactured.