The Patek Philippe 5978P-010 pairs a manually wound chronograph with an instantaneous perpetual calendar—a combination Patek says it is introducing for the first time in this 2026, 120-piece platinum edition. Its closest in-family comparison is the 5270 chronograph family, while the 5236P-010 is useful for understanding an alternative calendar display, not as a chronograph rival. The practical differences are the calendar’s action and layout, movement and winding, case dimensions, and the limited-edition context.
What makes the 5978P-010 different?
The defining distinction is its CH 29-535 PS QI movement: a manually wound chronograph caliber combining an instantaneous perpetual calendar with an instantaneous 30-minute chronograph counter. Patek Philippe describes the Milan 2026 watch as the first pairing of its manually wound chronograph movement with an instantaneous perpetual calendar. Patek Philippe’s official 5978P-010 specifications list 500 movement components and 42 jewels.
The calendar shows the day, date, month, leap year and day/night information in apertures, alongside moon phases. The watch also displays small seconds. “Perpetual calendar” alone does not establish that another watch uses the same instantaneous mechanism; compare the maker’s description of each specific movement and its calendar operation.
How does it compare with Patek Philippe’s 5270 family?
The 5270 is the most direct comparison in Patek Philippe’s own line because the family combines a chronograph and perpetual calendar. Patek identifies the manually wound CH 29-535 PS Q as its first manufacture-made chronograph movement with perpetual calendar, introduced in 2011, and names references 5270J, 5270P and 5271/12P. The 5978P-010 uses the related designation CH 29-535 PS QI; its official product description specifies instantaneous calendar operation.
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- High quality material,waterproof,soft,durable.
- Compatible with Patek Aquanaut Philippe Models: PP 5164A 5167A
- Packing include: 1x 21mm Cirtrar Silicone watch strap,1 x stainless steel buckle, 1 x replacement remove tool.
- Please measure the width of the connecting part where the band attached to the watch before placing order.
- Watch strap is vintage style, versatile and suitable for any occasion.
| Feature | 5978P-010 | 5270 family |
|---|---|---|
| Complications | Chronograph and instantaneous perpetual calendar, with moon phases and day/night indication | Chronograph and perpetual calendar; the cited Patek overview does not specify instantaneous calendar operation for the family |
| Movement | Manually wound CH 29-535 PS QI | Manually wound CH 29-535 PS Q |
| Edition context | 120 pieces for WATCH ART™ Grand Exhibition – Milan 2026 | Not stated in the cited chronograph overview |
These are distinctions supported by Patek’s descriptions, not a claim that the 5270 lacks other functions. Dial design, dimensions and specifications can vary by exact 5270 reference, so compare the particular reference rather than treating the family as one unchanging configuration. See Patek Philippe’s chronograph overview for its account of the 5270 family.
What does “instantaneous perpetual calendar” mean here?
For the 5978P-010, “instantaneous” identifies the calendar mechanism described by Patek, distinguishing it from a generic perpetual-calendar label. The manufacturer says the caliber’s energy-management mechanisms enable precise, simultaneous synchronization of the displays. That is Patek’s explanation of the design, not independent performance testing. When comparing another watch, check whether its manufacturer explicitly describes instantaneous calendar indications; do not infer it from the complication name alone.
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- Made top Italian cowhide material ,which is environmentally friendly and healthy, with moderate softness and very comfortable to wear.
- Moderate softness, very comfortable to wear, molded, strong and durable, wear-resistant strap/wristband, suitable for original watch.
- There are tools included in the package to help you easily insert and remove the strap, perfect for you to modify your watch.
- Exquisite packaging with exquisite workmanship and stylish design is a perfect gift for friends and family.
How does the 5236P-010 compare?
The 5236P-010 is an adjacent comparison, not a perpetual-calendar chronograph: it has no chronograph listed in the cited official specification. Its point of difference is an in-line perpetual-calendar display paired with a self-winding movement. It illustrates a different priority—calendar presentation and automatic winding rather than the 5978P-010’s chronograph-plus-calendar combination.
| Feature | 5978P-010 | 5236P-010 |
|---|---|---|
| Complications | Chronograph and instantaneous perpetual calendar | In-line perpetual calendar; no chronograph listed in the cited specification |
| Winding and caliber | Manual, CH 29-535 PS QI | Self-winding, 31-260 PS QL |
| Case material and diameter | Platinum, 42 mm | Platinum, 41.3 mm |
| Thickness | 14.24 mm | 11.07 mm |
| Power reserve | 55–65 hours with the chronograph disengaged | 38–48 hours |
Specifications in the table are from the respective official pages: 5978P-010 and 5236P-010.
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- - **Material**: Crafted from premium rubber, this strap features a durable 316L deployment buckle, ensuring longevity and a secure fit for your luxury timepiece.
- - **Adjustable Fit**:Concave interface, width 25mm, width of recess 13mm. With an impressive length of 20cm that can be trimmed down to approximately 15.5cm, this strap provides a customizable fit for different wrist sizes, making it versatile for any wearer.
- - **Complete Installation Kit**: Each package includes one rubber strap, a straight screwdriver for removing your old strap, a pin screwdriver for easy installation of metal links, and four metal links(Can be used directly in the four strap holes at the connection points, replacing the screws in the original strap holes) for quick adjustments.
- - **After-Sales Assurance**: We stand behind our rubber strap with dedicated customer support to assist you with any inquiries or concerns, ensuring your satisfaction with every purchase.
What are the 5978P-010’s case, movement and edition details?
Patek Philippe lists the case as platinum, 42 mm in diameter and 14.24 mm thick, with 30 m water resistance. The watch is supplied with a navy composite strap with a fabric pattern and has a diamond at 6 o’clock. A 30 m rating is a specification, not evidence that the watch is designed as a dive watch.
The manually wound movement is 32 mm in diameter and 8.1 mm thick. Patek lists a frequency of 28,800 semi-oscillations per hour (4 Hz), 42 jewels and a 55–65-hour power reserve when the chronograph is disengaged. These are the figures on the manufacturer’s current product page; a report by Hodinkee gives different jewel-count and thickness figures. For the specifications here, the official model page is the reference.
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- Compatible with Patek Philippe Model: 5164 /5165 5167R/5168. 5968 5267/200A-010 and other models
- Band Width: 18mm x 21mm.
- WHAT YOU GET: 1 x Watch Band, 1 x Tool, 3 x Spring bars.
- If you have any problems, please feel free to contact with us. We are very happy to help you.
The edition is limited to 120 pieces for WATCH ART™ Grand Exhibition – Milan 2026. The official page displays a price of $337,585; that is the page’s stated price, not a guarantee of current availability or a universal transaction price. Edition size does not establish whether any example remains available.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.How to compare it with another brand’s perpetual-calendar chronograph
The cited specifications establish a detailed comparison within Patek Philippe’s line, but do not provide verified technical specifications for other brands. To make a fair cross-brand comparison, check each maker’s current page for the exact reference, then compare the same attributes:
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- 100%brand new and quality,easy to adjust the length to fit the wrist,one size fits everyone.
- Made Italian cowhide material ,environmentally friendly and healthy,Softness is moderate, wear very comfortable.
- Softness is moderate, wear very comfortable,Compression molding, sturdy and durable,Wearable strap/wrist strap,suitable for original watch.
- Easy to insert and remove,very suitable for your watch.
- Exquisite craftsmanship and stylish design are perfect gifts for friends and family.
- Calendar: Which indications are shown, how they are laid out, and whether instantaneous operation is explicitly specified.
- Chronograph: Counter arrangement and functions, including whether the watch has a 30-minute counter or additional chronograph capabilities.
- Movement: Manual or automatic winding, caliber architecture, and power reserve—with any operating condition, such as the chronograph being disengaged, attached to the figure.
- Wear: Case material, diameter, thickness, water resistance and strap or bracelet.
- Edition and price: Separate announced production limits and manufacturer-displayed prices from current stock, resale prices and completed transactions.
Patek’s Grand Complications overview notes that perpetual calendars are combined with chronographs and minute repeaters. That broader category is a reason to compare complication sets carefully, not evidence that any particular unverified model matches the 5978P-010’s mechanism.
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