Patek Philippe Cubitus Buying Guide
Compare every official Cubitus reference by diagonal size, metal, bracelet, movement, complication and ownership purpose—then inspect five exact watches currently available.
Which Cubitus should you buy?
Start with size and material, then decide whether you want the clean time-and-date architecture or a complication-led platinum reference.
5821/1A
Choose steel and olive green for the most direct expression of the 2024 launch design.
View This Exact Watch5821/1AR
Choose rose gold and steel when you want more visual warmth without moving to a full-gold bracelet.
View This Exact Watch7128/1G
Choose the 40 mm white-gold reference for quieter precious-metal presence and a blue-gray dial.
View This Exact Watch7128/1R
Choose rose gold and brown when color, warmth and the more compact diagonal matter most.
View This Exact Watch5822P
Choose the grand date, day and moon-phase display when function should lead the design.
View This Exact Watch5840P
The skeletonized perpetual calendar is the first Cubitus Grand Complication and a source-to-order proposition.
Source This ReferenceOfficial collection scope, case dimensions, calibres, functions and water-resistance specifications were checked against Patek Philippe reference pages on August 24, 2026. Fit, condition and buyer-selection commentary is independent Superlative Watch Co. Buying Desk analysis. See each individual watch listing for current photographs, price and availability.
Five Cubitus watches available now
Explore current watch photographs and open a listing to see the details.
5821/1A-001 · The foundational Cubitus
Steel, an olive-green horizontally embossed dial and the thinnest 45 mm Cubitus profile make this the clearest expression of the original launch design.
View This Exact Watch
5821/1AR-001 · The two-tone Cubitus
A rose-gold bezel and center links warm the blue-dial design while steel preserves its sports-watch contrast.
View This Exact Watch
7128/1G-001 · The discreet precious-metal choice
The smaller diagonal, cool white gold and blue-gray dial create the quietest precious-metal execution.
View This Exact Watch
7128/1R-001 · The warmer 40 mm choice
Rose gold and a sunburst brown dial give the medium-size Cubitus its richest color.
View This Exact Watch
5822P-001 · The useful complication
An instantaneous grand date, day display, moon phases and small seconds distinguish the platinum strap model.
View This Exact WatchThe six-reference Cubitus map
The Cubitus family progresses from two slim 45 mm bracelet watches to two 40 mm full-gold models, a grand-date platinum reference and a skeletonized perpetual calendar.
Launch references 5821/1A, 5821/1AR and 5822P establish the rounded-square case, horizontal dial motif and 45 mm diagonal measurement.
References 7128/1G and 7128/1R introduce a 40 mm format with full white-gold or rose-gold bracelets.
Reference 5840P brings a square-shaped skeletonized calibre and perpetual calendar to the collection.
| Reference | Case | Dial / attachment | Calibre and functions | Buyer route |
|---|---|---|---|---|
| 5821/1A-001 | Steel · 45 mm × 8.3 mm | Olive green · steel bracelet | 26-330 S C · date and sweep seconds | View exact watch |
| 5821/1AR-001 | Rose gold and steel · 45 mm × 8.3 mm | Blue · two-tone bracelet | 26-330 S C · date and sweep seconds | View exact watch |
| 7128/1G-001 | White gold · 40 mm × 8.5 mm | Blue-gray · white-gold bracelet | 26-330 S C/434 · date and sweep seconds | View exact watch |
| 7128/1R-001 | Rose gold · 40 mm × 8.5 mm | Brown · rose-gold bracelet | 26-330 S C/434 · date and sweep seconds | View exact watch |
| 5822P-001 | Platinum · 45 mm × 9.6 mm | Blue · composite strap | 240 PS CI J LU · grand date, day, moon phases and small seconds | View exact watch |
| 5840P-001 | Platinum · 45 mm × 10 mm | Openworked blue · composite strap | 28-28 Q SQU · skeletonized perpetual calendar | Source this reference |
All case measurements above are Patek Philippe’s published 10-to-4-o’clock diagonal dimensions. A 45 mm Cubitus should not be compared directly with the diameter of a conventional round watch.
40 mm versus 45 mm Cubitus
Width alone does not explain how a rounded-square case and integrated first links occupy the wrist.
40 mm: 7128/1G and 7128/1R
The smaller diagonal reduces the visual span while the full precious-metal bracelet preserves weight and presence. This is the most natural starting point for narrower wrists or buyers who prefer a more compact dress-sport proportion.
- 8.5 mm published thickness
- Full white-gold or rose-gold bracelet
- Same basic time, date and sweep-seconds brief
45 mm: 5821, 5822 and 5840
The larger diagonal creates a broader, more architectural footprint. The 5821 bracelet models are only 8.3 mm thick; the strap-mounted 5822P and 5840P add complication and thickness without becoming conventionally bulky.
- 8.3–10 mm published thickness
- Bracelet or composite-strap architecture
- Clean time-and-date through perpetual calendar
From time and date to Grand Complication
The reference number changes the watch’s mechanics as much as its metal. Movement specifications should never be copied from one Cubitus family into another.
| Calibre | References | Functions | Published reserve | Buyer consideration |
|---|---|---|---|---|
| 26-330 S C | 5821/1A and 5821/1AR | Hours, minutes, date, sweep seconds and stop seconds | 35–45 hours | The 45 mm bracelet platform uses the 3.32 mm execution published for the 5821 references. |
| 26-330 S C/434 | 7128/1G and 7128/1R | Hours, minutes, date, sweep seconds and stop seconds | 35–45 hours | The 40 mm references use a distinct published execution; do not substitute 5821 component or thickness data. |
| 240 PS CI J LU | 5822P | Instantaneous grand date, day, moon phases and small seconds | 38–48 hours | Patek describes six patent applications for the calendar mechanism; that is not the same as six granted patents. |
| 28-28 Q SQU | 5840P | Skeletonized perpetual calendar with day, date, month, leap year, 24-hour display and moon phases | 38–48 hours | The square-shaped movement and openworked display make this the collection’s highest-complexity proposition. |
What matters on the exact watch
A new collection does not remove reference-level due diligence. Finishing, bracelet completeness, documentation and function remain material.
Protect the transitions
The design depends on sharp contrast between polished and vertical satin-brushed surfaces. Heavy refinishing can soften the geometry.
Confirm every link
Full links, clasp operation and the lockable adjustment system affect both fit and completeness on bracelet references.
Test every indication
On the 5822P and 5840P, confirm correct display behavior and use the manufacturer’s setting sequence before operating calendar controls.
30 m is not a dive brief
All six official reference pages state 30 m. Actual exposure should also reflect gasket condition and a current pressure test.
Premium is not appreciation
Launch pricing and short-term secondary premiums are time-sensitive. Entry price, condition, completeness, liquidity and selling costs determine the result.
Verify the complete reference
Case, dial, hands, movement, bracelet or strap, clasp, papers and identifying records should agree with the exact configuration.
Authentication ProcessContinue the research
Move from the Cubitus family into broader Patek Philippe collection, movement, comparison and ownership guidance.
Patek Philippe Cubitus FAQs
Concise answers to the collection questions buyers ask most often.
When did Patek Philippe introduce Cubitus?
Patek Philippe introduced the Cubitus collection in 2024.
Is Cubitus the same as Nautilus?
No. Cubitus is a separate official collection with a square-format case, even though some design cues are related.
What are the medium-size Cubitus references?
Refs. 7128/1G and 7128/1R, introduced in 2025, measure 40 mm across the diagonal.
Which Cubitus has a grand date?
Ref. 5822P combines an instantaneous grand date with day and moon-phase indications.
What is special about Cubitus Ref. 5840P?
It is the first Cubitus Grand Complication, a platinum skeletonized perpetual calendar introduced in 2026.
Can Cubitus value be predicted from its launch premium?
No. Early premiums are time-sensitive and do not guarantee future value; the exact watch and transaction terms still matter.
Sources and verification
Manufacturer facts and independent Buying Desk analysis are kept distinct.
Official reference scope and technical facts were checked against Patek Philippe on August 24, 2026. Superlative Watch Co. is an independent retailer and is not affiliated with or endorsed by Patek Philippe. Exact availability is governed by the linked product page; sourcing is confirmed in writing before transaction terms are finalized.