The Portugieser Perpetual Calendar is renowned for its exceptional perpetual calendar, which automatically takes into account all month lengths and even leap years until 2499. What makes it so special is that the calendar can be set completely and harmoniously using a single crown. Once correctly set, no manual correction is necessary for centuries, making this mechanism a highlight of watchmaking engineering. Added to this are a seven-day power reserve and the efficient Pellaton winding system.
Year: 2023
Condition: Unworn
Original papers: No
Original box: Yes







