
Dr. Ludwig Oechslin's ultimate simplification of the perpetual calendar makes it possible. You can assemble a perpetual calendar yourself!
The assembly of a perpetual calendar has traditionally been a pleasure reserved only for the most accomplished of watchmakers. Now this experience is available for purchasers of the ochs und junior perpetual calendar in the form of a two-day workshop. Under the expert tutelage of an ochs und junior watchmaker, you will assemble your personal watch and thereby attain a deeper understanding of Ludwig Oechslin's 12-part perpetual calendar mechanism.

Using either their online customizer or in direct conversation with cofounder Beat Weinmann, you will first define your personal perpetual calendar. It will take them about 10 weeks to manufacture all of your desired parts in preparation for your two-day experience.
Cost of the workshop (in addition to the price of your chosen perpetual calendar) is 4,000 Swiss Francs. Each year, ochs und junior offers three such opportunities.
Thanks.