Assembly
Ludwig Oechslin’s perpetual calendar function is assembled in Lucerne.
Leap year
After midnight on February 29th, the date automatically adjusts to March 1st.
Common year
After midnight on February 28th, the date automatically adjusts to March 1st.
Months with 30 days
After midnight on the 30th, the date automatically adjusts to the 1st of the next month.
Forwards and backwards
The date can be rapidly adjusted both forwards and backwards.
Ludwig Oechslin
Commentary on the assembly of his perpetual calendar
Ludwig Oechslin
Using gears
Ludwig Oechslin
Date displays
Ludwig Oechslin
Month display
Ludwig Oechslin
Functionality
Ludwig Oechslin
Prototyping
Ludwig Oechslin
Thinking more upfront
Ludwig Oechslin
Design
Ludwig Oechslin
Design trends
Ludwig Oechslin
Communication
Ludwig Oechslin
Mathematics
Ludwig Oechslin
Reliability
Ludwig Oechslin
Rigorous simplicity
Ludwig Oechslin
Teamwork
Ludwig Oechslin
The concept of ochs und junior
Ludwig Oechslin
Good luck
Ludwig Oechslin
Goals