Portuguese can be the most popular model among all the IWC watches, especially the IW500107 and the Portuguese chronographs, which are deeply loved by the watches fans because of the large size and high configuration and the beautiful appearance.

Three Portuguese Millennium edition of the Portuguese 2000 were launched in the year of 2000, including the 1000 stainless steel models, 750 rose-gold models and 250 platinum gold models. "the valuable watches of IWC for the Portuguese series now is in not only constrained by the old glory, and focused on the sustainable development of more advanced performance, it is equipped with Caliber 5000 movement which takes 5 years to develop and manufacture, to show that determination and intention." Indeed, as the continuation of 85 movement - the Caliber5000 movement shaped the modern Portugal series.

Portuguese series in the IWC whole product series is the highest, from some general meaning, the Portuguese series came out from private tailored design. In the late 1930 s, two Portuguese businessmen put forward the custom-made watches request from IWC, and the order request was the wrist watches which had the same accuracy as the navigation timing instruments, at that time, the watch movement was small, the size was small, but much less precise than pocket watch movement, so the IWC watchmakers chose the hunting watch movement, whose size was greater than the ordinary watch in the market, and the willow needle, Arabic numerals on the watch dial surface highlighted the more big size. After that IWC as one of the best replica watches also introduced several generations, but early Portuguese series number are extremely rare and not formed into system, in the early 1980 s, the IWC just produced hundreds of watches. Until 1993, IWC in the name of "Portuguese" launched the new series, which has caught more and more attention from the watches lovers all over the world.