2020 is the year of the Portugieser as IWC releases multiple updates and models in the line up. Another great addition is the 42mm Perpetual Calendar A perpetual calendar is a complication in a mechanical watch that automatically adjusts for the different lengths of the months, including February, and leap years, and (almost) never requires manual adjustments. It has a mechanism that takes into account the different number of days in each month, including leap years, and automatically adjusts the date, day, month and year accordingly
[Learn More]! In the past, the Perpetual Calendar has always been in the 44.2mm case and 14+mm tall with precious metal materials. The main reason for the large size is due to the large 52000 family movement with its 7 day power reserve Also known as Power Reserve. A watch's power reserve refers to the amount of time a mechanical watch can run without being wound. The power reserve of a mechanical watch can vary depending on the size of the mainspring, the efficiency of the gear train, and the rate at which the mainspring releases energy. If a watch has a Power Reserve 'complication' it simply means that the status of the power reserve can be seen on the watch itself (either on the dial or movement side of the watch).
[Learn More] and twin barrel
The barrel is a cylindrical container that holds the mainspring. The barrel is connected to the winding mechanism. The winding mechanism rotates the barrel, which in turn winds the mainspring.
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