What actually works
Timekeeping, day, date and month indication generally function. Moonphase display is usually driven. The leap-year cycle and the automatic month-length correction are the elements most often simplified or non-functional. We will tell you exactly which functions are live on the specific build in stock rather than let you find out after delivery.
What we stock
Royal Oak Perpetual Calendar 41mm in steel, ceramic and rose gold. $1,275 to $1,375. ZF Factory.
Frequently asked questions
Does the perpetual calendar actually work?
Partly. Day, date, month and moonphase generally function. Leap-year correction is usually simplified. Ask us about the specific piece and we will answer plainly.
Is it worth buying?
As an object, yes, the dial is spectacular. As a working perpetual calendar, manage your expectations.
