A Patek Philippe perpetual calendar automatically tracks the date, day, month, moon phase and leap years, and needs no manual correction until 2100. Patek made the first perpetual calendar wristwatch in 1925, and today’s references, such as the 5236P and 5327, sit in its Grand Complications collection, with pre-owned values commonly from about $60,000 to more than $90,000. These watches are also excellent collateral: Borro lends up to 65% of a watch’s value, so owners can raise cash quickly without selling.
Patek Philippe Perpetual Calendar References at a Glance
| Reference | Description | Approximate pre-owned value |
|---|---|---|
| 5320G | White gold, vintage-style perpetual calendar (introduced 2017, discontinued) | About $60,000–$67,000 |
| 5327 | Automatic perpetual calendar with Breguet numerals | About $65,000–$85,000 (5327G) |
| 5236P | Platinum in-line perpetual calendar (introduced 2022) | About $87,000–$93,000 |
| 5270 | Perpetual calendar chronograph | Varies widely by metal and dial |
| 1518 / 2499 (vintage) | Historic perpetual calendar chronographs | Auction prices, often in the millions |
Values are secondary-market estimates from Loupe and WatchCharts, and they change. An appraisal sets the value of a specific watch.
Own a Patek perpetual calendar? Borro lends up to 65% of the value of fine watches, with loans from $2,500, no credit check and funding in as little as one business day. Get a no-obligation quote or call 720-458-6788.
How Does a Perpetual Calendar Work?
A perpetual calendar uses a mechanical “memory,” usually a 48-month cam, to tell the movement how many days each month has, including February in leap years. As long as the watch keeps running, it shows the correct date until 2100, a year that is not a leap year in the Gregorian calendar and needs a one-day correction.
History of the Patek Philippe Perpetual Calendar
- 1925: Patek makes the first perpetual calendar wristwatch, using a movement originally built for a pendant watch.
- 1941: the ref. 1518 becomes the first perpetual calendar chronograph made in series. Read about the steel 1518 auction record.
- 1951–1985: the ref. 2499 succeeds it and becomes one of the most collected vintage Pateks. See our 2499 guide.
- Today: perpetual calendars in the Grand Complications collection, including the in-line 5236P launched in 2022.
Perpetual Calendar vs. Annual Calendar
An annual calendar, which Patek introduced in 1996, handles 30- and 31-day months but needs a manual correction each year at the end of February. A perpetual calendar also accounts for February and leap years, which is why it belongs to the Grand Complications collection and costs considerably more. Explore the wider Patek Philippe Grand Complications collection.
Can You Get a Loan Against a Patek Philippe Perpetual Calendar?
Yes. Borro lends up to 65% of a watch’s value, with a minimum loan of $2,500. A 5327G valued at $70,000 could support a loan of up to about $45,500.
- No credit check and no personal guarantee. Your watch secures the loan, and Borro does not ask for personal or business financial statements.
- Fast funding. Once your loan is approved, funds can arrive in as little as one business day.
- You keep ownership. Your Patek is held in fully insured, secure safekeeping for the loan term and returned when you repay.
- Private and discreet. Borro has lent more than $1 billion to clients across the country and holds an A+ BBB rating.
Learn more about Patek Philippe loans with Borro or luxury watch loans.
A Machine That Remembers the Calendar for You
Turn the watch toward the light and four small windows begin to speak. The day, the date, the month, the moon, each placed so carefully that reading them feels like a private conversation with someone very patient.
That is the secret pleasure of a perpetual calendar. You do not wind a correction every few weeks and curse the short months. The mechanism simply knows. It carries the logic of the year inside a case thin enough to slip under a cuff, and it asks nothing of you but a little attention.
Wear one and you will notice how the gaze lingers. A colleague catches the moon phase, an old friend asks the reference. You answer quietly, because a watch like this does not need an introduction. The weight against your wrist is calm and exact, and it feels like being trusted with something.
These pieces are made to be kept, and they usually are. Still, there are moments when capital matters and a sale would feel like the wrong ending. Borro lends against fine watches, holds the piece in secure, fully insured safekeeping while the loan runs, and returns it to you when you repay. You remain the owner throughout. See how it works for luxury watches, and let the moon keep turning.
Frequently Asked Questions
Can I borrow against my Patek Philippe perpetual calendar?
Yes. Borro lends up to 65% of a watch’s value, with loans from $2,500, no credit check and funding in as little as one business day.
How much is a Patek Philippe perpetual calendar?
Pre-owned modern references commonly trade from about $60,000 to more than $90,000; vintage perpetual calendar chronographs can sell for millions at auction.
When did Patek Philippe make the first perpetual calendar wristwatch?
In 1925.
Does a perpetual calendar ever need adjusting?
Not until 2100, as long as it keeps running. If it stops, it must be reset correctly.
Is a perpetual calendar a grand complication?
Yes. Patek places its perpetual calendars in the Grand Complications collection.
See how much your Patek could unlock. Borro’s watch loans start at $2,500, with no credit check and no personal guarantee. Apply now or call 720-458-6788 to speak with a valuation expert.
