Portugieser Eternal Calendar

Portugieser Eternal Calendar

IWC Schaffhausen

Copyright
IWC Schaffausen
Release
Winter 2024-2025

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.

Winner of the Grand Prix d’Horlogerie de Genève
“Aiguille d’Or” Grand Prix 2024

iwc.com