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IWC Schaffhausen

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IWC Schaffhausen

PORTUGIESER ETERNAL CALENDAR

PORTUGIESER ETERNAL CALENDAR

IWC’s first secular perpetual calendar automatically takes into account the Gregorian calendar’s complex leap year exceptions by skipping three leap years over a 400-year period. In addition, its moon phase display is so precise that it will – theoretically – only deviate by one day after 45 million years.

IWC Schaffhausen