Quick Takeaways
- The P.9010/AC is Panerai’s first annual calendar movement, a development of the P.9010, introduced in 2023 in the Radiomir Annual Calendar.
- It is a 36mm automatic, 7.87mm thick, with 40 jewels, 316 components, 28,800 vph and 72 hours of power reserve from two barrels.
- Day and date sit in apertures at 3 o’clock, with the month on a rotating disc at the edge of the dial. The calendar needs one correction a year, at the end of February.
- The Quick Change of Time moves the hour hand in one-hour steps without touching the minutes, and the stop-seconds function halts the balance when the crown is pulled. Both are made for setting the watch without fuss.
- Three watches use it: the PAM01363, the PAM01364 and the PAM01432. All three are Radiomirs with sandwich dials.
Jump directly to the spec sheet.
Panerai doesn’t usually shout about complications. Dive watches, big cases and luminous dials have always been the brand’s language, and an annual calendar is not a phrase you expect to hear alongside the name. Then the Panerai P.9010/AC movement arrived in 2023, and the brand had its first annual calendar.
It is not a new movement from scratch. It is a development of the P.9010, the three-day automatic that powers a large part of the modern Panerai range, with a calendar mechanism added on top. The aim is clear: add the information, keep the simplicity.
That makes it one of the more interesting calibres Panerai has built in recent years. It does not try to dazzle. It tries to be easy to live with.
So what does the P.9010/AC actually do, and what did Panerai change from the movement it grew out of? Let’s open it up and look at the calendar, the setting routine and the three watches that carry it.
The movement features 40 jewels and is equipped with a Glucydur® balance and Incabloc® anti-shock device, reinforcing its reliability. Its finishing isn’t meant to dazzle under a loupe—it’s built to last, built to work, and built to function in real-world settings, just like every Panerai should be.
What Is the Panerai P.9010/AC Movement?
The P.9010/AC is a self-winding mechanical calibre of 16 lignes, or 36mm, and 7.87mm thick. It runs at 28,800 vibrations per hour, or 4Hz, and two barrels give it a power reserve of three days. A Glucydur balance and an Incabloc shock protection system keep the beat steady and protect it from knocks.
It shows hours, minutes, small seconds, day, date and month, with an annual calendar mechanism that handles 30-day and 31-day months by itself. It came with the Radiomir Annual Calendar, shown at Watches & Wonders 2023, and sits in watches with a 45mm case in the Radiomir line.
The detail Panerai fans will notice first: it is built on the P.9010 platform. That movement has become a workhorse for the brand, and the AC version takes the same layout and extends it. The result is a modern Panerai calibre that does one extra job very well.
How Does the P.9010/AC Annual Calendar Work?
An annual calendar is a calendar that knows which months have 30 days and which have 31. It handles those changes on its own and needs a manual correction only once a year, when February ends. It sits between a plain date display and a perpetual calendar, which also tracks leap years. The P.9010/AC is the first Panerai movement to offer it.
How is it displayed?
Day and date appear through two apertures at 3 o’clock. The month does not get a third window. It sits on a rotating disc around the outer edge of the dial, read against a fixed arrow at 3 o’clock. Small seconds fill the space at 9. Hours, minutes, small seconds, day, date and month all share a face that still looks like a Radiomir.
The day and month abbreviations are in Italian. It is a small detail with a big personality: the calendar speaks the language of the brand’s origins.
I’d argue the month disc is the smartest decision in the whole movement. Three windows would crowd the dial. A ring at the edge uses space the dial was not using anyway. Worn & Wound put it this way:
“quite elegant and minimalist” Worn & Wound, on the calendar execution
I agree, and the sandwich dials these watches carry help. The sandwich construction gives the numerals and markers real depth, and the month ring sits at the edge without fighting them.
How often does it need adjusting?
Once a year, at the end of February. The movement tracks the lengths of the other months automatically, so there is nothing to do on the 1st of March, 1st of May or any other month change. For a collector who rotates several watches, that is a real convenience: a plain date watch needs correcting after every month shorter than 31 days.
How do you set it?
The crown sets the time. A corrector on the left side of the case advances the day in single steps, after the month and date have been set. The same first crown position also allows quick date changes without stopping the movement.
What drives the calendar?
Inside, a cam turns the month disc one step at each month change, and a patented system of jumping discs drives the day, date and month. The discs jump from one position to the next, so the display shows a clean value. The movement keeps the base calibre’s reserve and beat rate.
P.9010 vs P.9010/AC: What Changed?
Put the two side by side and the story is clear. The base P.9010 has 31 jewels, 200 components and is 6mm thick. The P.9010/AC has 40 jewels, 316 components and is 7.87mm thick.
That is nine more jewels, 116 more parts and 1.87mm more height, which is what an annual calendar costs. What stays the same is just as telling: 72 hours of reserve, 28,800 vph, two barrels and the in-house construction.
The calendar adds depth to the movement and takes nothing away from its performance. For a complication, that is the right trade. Holding the 72-hour reserve at 7.87mm, with two barrels still in the layout, is the engineering achievement here, more than the calendar itself.
How Do the Quick Change of Time and Stop Seconds Work?
Two features make the P.9010/AC easy to use.
Quick Change of Time. Pull the crown to the first click and the hour hand moves in one-hour steps, without disturbing the minutes or the running seconds. If you travel across time zones or the clocks change, you adjust the hour in a few clicks instead of a full reset. For a travel-minded owner it is the most useful trick in the movement.
Stop seconds. Pull the crown out and the balance wheel stops. That lets you set the time to a reference signal to the second, then restart the watch on the beat.
Together they make the movement friendlier than its specification suggests. A complication that is hard to set gets left in a drawer, and the P.9010/AC is designed so that doesn’t happen.
Can You Change the Date Without Stopping the Movement?
Yes. With the crown at the first click the hour hand moves in one-hour steps, and the same position allows quick date changes while the watch keeps running. Pulling the crown further stops the balance wheel when you need to set the time to the second. Between them, the two positions cover everyday corrections and precise setting without a trip to a watchmaker.C to full effect, showcasing the movement’s capabilities without overcomplicating the watch’s visual storytelling.
Which Watches Use the P.9010/AC?
Three watches carry the movement, all in the Radiomir Annual Calendar family, with a 45mm case and a 100-metre rating.
- PAM01363: Goldtech case, sun-brushed blue sandwich dial. Panerai’s page lists the specification.
- PAM01364: Platinumtech case, green dial, a boutique exclusive.
- PAM01432: Platinumtech Experience Edition, Bordeaux red dial, limited to 24 pieces, with a guided trip to Rome.
The PAM01432 is mechanically the same as the PAM01364. What you pay for is the dial colour, the edition number and the trip. If you want the movement without the premium, the other two are the sensible choices.
Is the P.9010/AC Worth Choosing?
If you want an annual calendar in a Panerai, there is only one place to get it, and it is a good place. The movement is a modern, in-house calibre with a three-day reserve, a clear display and an easy routine: one correction a year, a quick hour change for travel and a stop-seconds setting for accuracy.
It is not the most elaborate calendar movement in watchmaking, and it does not try to be. It is a calendar built for people who wear the watch. For that audience it is as good as it needs to be.
For the wider family of Panerai in-house movements, my look at the P.2003 calibre family covers the 10-day side of Panerai’s manufacture.
Who Is It For?
- The collector who wants Panerai’s first annual calendar in a Radiomir
- A traveller who values the Quick Change of Time and a three-day reserve
- Someone who likes complications that stay readable, with one correction a year
- A Paneristi who cares about in-house movements and wants the calendar version of the P.9010
Not for: collectors who want a perpetual calendar; buyers who need a movement under 7mm; anyone who prefers a plain date display.
Conclusion
The P.9010/AC is Panerai doing a complication its own way: build on a proven movement, add what the owner needs, and keep the dial open. It takes the P.9010 and gives it a calendar without breaking its manners.
Is it worth choosing? If you want an annual calendar in a Panerai, yes. The movement is easy to set, easy to read and needs you once a year. The three Radiomir Annual Calendars that carry it are the best way to find out.
Would you pick an annual calendar over a GMT for your next Panerai? Tell me in the comments.
Extended Summary
- The P.9010/AC is Panerai’s first annual calendar movement, a development of the P.9010 introduced in 2023 with the Radiomir Annual Calendar.
- It is a 36mm, 7.87mm thick automatic with 40 jewels, 316 components, 28,800 vph and a 72-hour reserve from two barrels.
- Day and date show in apertures at 3, the month on a rotating disc against a fixed arrow, and the abbreviations are in Italian. It needs one correction a year, at the end of February.
- Compared with the P.9010, it adds nine jewels, 116 components and 1.87mm of height and keeps the same reserve and beat rate.
- Three watches use it: the PAM01363, the PAM01364 and the 24-piece PAM01432, all with sandwich dials.
At a Glance
| Spec | Detail |
|---|---|
| Calibre | P.9010/AC |
| Type | Automatic, mechanical |
| Introduced | 2023 |
| Diameter | 36.00mm (16 lignes) |
| Thickness | 7.87mm |
| Components | 316 |
| Jewels | 40 |
| Frequency | 28,800 vph (4Hz) |
| Power reserve | 72 hours (3 days), two barrels |
| Balance | Glucydur |
| Shock protection | Incabloc |
| Functions | Hours, minutes, small seconds, day, date, month, annual calendar |
| Calendar adjustment | Once a year, at the end of February |
| Setting | Quick Change of Time (hour hand in one-hour steps), stop-seconds, day corrector on the left of the case |
| Base calibre | P.9010 (31 jewels, 200 components, 6mm) |
| Watches | PAM01363, PAM01364, PAM01432 |
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