Quick Guide to Patek Philippe Cubitus Models

In 2024, for the first time since the Aquanaut was released in 1997, Patek Philippe unveiled an entirely new men’s product line. It looks like a Nautilus, but more cube-ish–as the name suggests–and it has strongly divided opinions since its launch. In all, six Cubitus variants have been released: four time-and-date models with a bracelet (available in steel or two-tone in 45mm, and white or rose gold in 40mm), and two complicated platinum models on textured blue composite straps. Here are the details.

Patek Philippe Cubitus Prices

List prices for Patek Philippe Cubitus models range from $45,512 for the stainless steel model to $187,547 for the skeleton perpetual calendar. Interestingly, the steel model and rose gold model both sell for about double their MSRP secondhand. All the other Cubitus variants tend to go for roughly 1.5x list price. Here’s a breakdown of all six references:

Reference	Material	Size	Complications	Debut year	MSRP (2026)	Market Price (2026)
5821/1A-001	Steel	45mm	Time and date	2024	$45,512	$91,500
5821/1AR-001	Steel / rose gold	45mm	Time and date	2024	$68,643	$100,000
5822P-001	Platinum	45mm	Moonphase, date, day, month	2024	$97,525	$159,000
5840P-001	Platinum	45mm	Perpetual calendar skeleton (day, date, month, moonphase)	2026	$187,547	$290,000
7128/1G-001	White gold	40mm	Time and date	2025	$84,522	$125,000
7128/1R-001	Rose gold	40mm	Time and date	2025	$84,522	$163,000

Interestingly, while hype for new models usually causes prices to cool off over time, Patek Philippe Cubitus resale prices on the whole have inched slightly upwards since launch.

Note that the sizes that Patek lists–40mm and 45mm–are actually diagonal measurements, not width. Now let’s go over all the specs of each of the six Cubitus variants:

Patek Philippe Cubitus Specs

Model	Cubitus Instantaneous Grand Date, Day and Moon Phases	Cubitus Perpetual Calendar Skeleton	Cubitus 45mm TT	Cubitus 45mm SS	Cubitus 40mm RG	Cubitus 40mm WG
Reference Number	5822P	5840P-001	5821/1AR-001	5821/1A-001	7128/1R-001	7128/1G-001
Case Material	Platinum	Platinum	Two-tone (steel and yellow gold)	Stainless steel	Rose gold	White gold
Case Diameter (Diagonal)	45mm	45mm	45mm	45mm	40mm	40mm
Case Thickness	9.6mm	10mm	8.3mm	8.3mm	8.5mm	8.5mm
Movement	Calibre 240 PS CI J LU (Automatic, 6 beats per second, non-hacking)	Caliber 28‑28 Q SQU (Automatic, 3 Hz)	Caliber 26‑330 S C (Automatic, 8 beats per second)	Caliber 26‑330 S C (Automatic, 8 beats per second)	Caliber 26‑330 S C (Automatic, 4 Hz)	Caliber 26‑330 S C (Automatic, 4 Hz)
Water Resistance	30m	30m	30m	30m	30m	30m
Power Reserve	38-48 hours	38-48 hours	35-45 hours	35-45 hours	35-45 hours	35-45 hours
Functions	Hours, minutes, small seconds, big date, moonphase, day	Hours, minutes, seconds, perpetual calendar with date, day, month, leap year, 24-hour indication, moon phases	Hours, minutes, seconds, date	Hours, minutes, seconds, date	Hours, minutes, seconds, date	Hours, minutes, seconds, date
Bracelet/Strap	Composite fabric strap with deployant clasp	Composite fabric strap with deployant clasp	Nautilus-style bracelet	Nautilus-style bracelet	Nautilus-style bracelet	Nautilus-style bracelet
Dial Color	Blue	Blue	Blue	Green	Brown	Greyish-Blue
Debut Year	2024	2026	2024	2024	2025	2025
Matching Cufflink Reference	205.9821G-001	–	205.9821R-001	205.9821G-010	–	–

Design

The Patek Philippe Cubitus has Patek’s familiar “garage door” horizontal embossed dial pattern. The steel version has a green dial while the two-tone and platinum versions get blue dials. The rose gold 40mm Cubitus has a brown dial, and the white gold 40mm model is greyish-blue.

The hands and hour markers are fully lumed. The resemblance to the Nautilus is inescapable, but it definitely has its own design. And Patek even sells Cubitus cufflinks if you’re into that sort of thing. The Nautilus-like bracelet on the time-and-date versions gives a sportier look than the blue composite fabric strap on the platinum Cubitus models.

When the Cubitus was released, Patek Philippe CEO Thierry Stern noted that he “always wanted to have a square watch in the collection. It’s not easy, as 85% of the watches around the world are round.” And despite its high secondhand prices, it was intended to be relatively attainable.

You should not only do a million-dollar watch…We have people who are passionate about watches and who can spend a maximum of $30,000 or $40,000 on a watch.”

Patek Philippe CEO Thierry Stern to Bloomberg

It’s worth noting that the platinum Cubitus models feature a diamond on the 6 o’clock side of the case, which is a signature design element of platinum Patek Philippe watches.

Movement

Patek’s Cubitus collection uses a mix of tried‑and‑true and freshly developed calibers: the regular time-and-date models use the automatic caliber 26‑330 S C, which Patek has used in watches like the Nautilus since 2019. it’s a pretty movement, featuring an embellished 21k gold rotor, although it only offers 35-45 hours of power reserve.

The platinum “Instantaneous Grand Date, Day and Moon Phases” (ref. 5822P) is the first watch to feature the ultra‑thin micro‑rotor caliber 240 PS CI J LU, built on the long‑serving caliber 240 architecture but significantly reworked for the patented instantaneous jumping grand date and calendar.

But, somewhat disappointingly, it also has traditional round architecture rather than a square shape that matches the case. By contrast, the Perpetual Calendar Skeleton uses the square‑shaped caliber 28‑28 Q SQU, a fully skeletonized form movement derived from the venerable 240 Q perpetual calendar. Despite its old‑school base, its square-ified architecture and window-blind aesthetics are new. The calendar functions of both platinum Cubitus models are adjusted by pressing small recessed corrector buttons with a stylus.

Much has been written about the Patek Cubitus ever since an ad for it inadvertently appeared in Fortune Magazine on October 12, 2024, before its intended launch. And it seems like many of the loud voices of derision surrounding the Cubitus have softened over time. Although it isn’t everyone’s favorite Patek, the sustained high resale prices speak for themselves. Even though the Cubitus is an entry-level Patek Philippe, I don’t expect it to be easily attainable from authorized dealers anytime soon. I think it has rightfully earned a place alongside the Aquanaut and Nautilus.

To many people, Patek is simply the #1 watch brand in the world. But there are other top luxury watch brands to compete with now. It’s no secret that the watch world has cooled off a bit since the peak of the hype in 2022, but Rolex watches are still selling just fine. And six-figure hyperwatches like the Audemars Piguet Royal Oak Concept–and anything from Richard Mille–have extremely strong demand. Keeping up with the other top luxury watch brands is harder than ever. The Patek Philippe Cubitus, though, is selling just fine.