Patek Philippe’s 2011 release of the mention 5270 Perpetual Calendar Chronograph was a big thing. The complication has been in Patek Philippe’s catalog since 1941, and as our comprehensive look at the family things out, it is also among the brand’s most crucial watches. Vintage or modern, Patek’s endless calendar chronographs are among the most coveted and collectible of wristwatches. The fact that no other watch has emerged on as many watch auction catalogue covers is a testament to their collectibility and widespread appeal. The 5270’s introduction was remarkable as it was the first Patek perpetual calendar chronograph to use a 100% in-house designed and fabricated movement. For this kind of iconic watch, expectations were as high as it gets.
Like others, I had been awaiting its release for years — since Patek’s introduction of the initial watch with a really in-house chronograph movement in 2005, the totally outstanding reference 5959P. Patek Philippe 5270g blue dial replica watches took on among the most complex of horological complications — the split-seconds chronograph — also generated an all-new layout packed with innovations. The end result was the 27-525 PS, the world’s thinnest, split-second column wheel chronograph movement that quite literally wowed the watch world — it’s also utilized from the 5950A found here.
Three decades later, in 2009, Patek introduced the caliber 29-535 PS — a movement substituting the Nouvelle Lemania-based, manual-winding chronograph grade 27-70 CH, in use by the brand since 1986. Until then, the 27-70 CH was utilized in the reference 5070 chronograph and was the foundation caliber for its reference 3970 and after reference 5970 perpetual calendar chronograph watches. Initially released within the ladies’ benchmark 7071 chronograph, the caliber 29-535 would soon be released in 2010 from the brand new mens’ reference 5170 chronograph that replaced the 5070.
The 5270’s dial design reflects the fact it is a direct descendant of the 1518, keeping most signs of its predecessors — the 1518, 2499, 3970, and 5970. Like all of them, the 5270 suggests the month and day at apertures in 12 o’clock, the date with all moon phase at 6 o`clock, a 30-minute counter for the chronograph at 3 o’clock, and moments signal at 9 o’clock.
Some important dial differences distinguish the 5270 out of its predecessors. Most importantly, the moments signal and instant counter now reside below the center, horizontal axis of this dial. It’s believed this was performed to easily identify fakes today and in the future. But at the exact same time, it made Patek’s life more difficult. The repositioning of those hands from the 29-535 PS rendered the perpetual calendar module created for the 3970 and 5970 obsolete. A new module was demanded, taking Patek two years of development to complete.
For improved readability, the day/night and leap-year indicators were removed from the 9 and 3 o’clock subdials, as found on the 3970 and 5970. Instead, they were placed within small apertures into the left and right of the date/moon phase subdial at 6 o’clock, taking inspiration from the leap-year aperture used by Patek in the mention 3450 perpetual calendar launched in 1981. The day/night index changes continually, from full white to complete blue over the course of 24 hours, in which the white colour indicates daytime, and the blue colour indicates nighttime.
Since the 5270’s launch, three different dials have been introduced. The first variant, found in watches with reference 5270G 001, removed the tachometer scale comprised on 5970 dials. Similar instead into the dials on the now-discontinued benchmark 5004 perpetual calendar with split seconds chronograph, the outer circumference featured a moments track for its chronograph with 1/5th next sub-divisions, minus the markers at every minute position. A second, closed, railroad-type minute track is located just within the outer tabs trail. Finally, with more space on the upper half of this dial due to this lower-positioned subdials, the font size of the”Patek Philippe” brand name at 12 o’clock was significantly enhanced compared with the dimensions used on the 5970. The hands and applied hour markers are black-oxydized gold.
Performance and accuracy are the raison d’être for a chronograph, particularly one created by Patek Philippe perpetual calendar nautilus replica watches. This gloomy region places the moments track from the chronograph hand’s reach. If the chronograph hand is stopped between 27 minutes and 33 seconds, the correct reading of the time gets very difficult with the naked eye. There have been innumerable snarky comments made by collectors about”the eyebrow,” but aesthetics aside, I believe it is a fundamental flaw in the design of the chronograph’s dial — if we are to view the 5270 as a functional thing, which of course, most do not.
Speaking of accuracy, as mentioned, the 5270’s chronograph minutes track is calibrated for 1/5th second intervals. However, the 29-535 PS inside the 5270 has an oscillation rate of 28,800 beats per hour (bph), corresponding to 1/8th second accuracy. The 1/5th scale perfectly matches the 18,000 bph speed of the CH 27-70 utilized from the 3970 and 5970, therefore with the increased beat rate of the 29-535, I would have like to see 1/8th second periods for the chronograph seconds track. This and”the eyebrow” are just two discordant design components I had been disappointed by. For many others, these are minor problems in an otherwise highly legible, non-aggressive well-balanced and symmetric dial.
Fortunately for all those in my camp, the next generation dial discovered on this year’s new reference 5271P — the first platinum-cased, black-dialed variant of this 5270 — removed the chin. The tachometer scale and chronograph minutes monitor were split, and also the”Patek Philippe” font size at 12 o’clock was significantly reduced. In my humble view, it’s the very best dial yet, although the chronograph seconds track is still calibrated with 1/5th minute intervals. My expectation is that the 5271P’s dial layout becomes the basis for many versions of the 5270.
The 29-535 PS Q is where the 5270 really excels.
The 2011 launching of this 5270 marked the end of Patek’s reliance on other companies to get any of the movements. The movement relies on the in-house, chronograph grade 29-535 PS, originally launched in 2009 following five decades of development. Within it, Patek used innovations leveraged by the ultra-thin, split-second chronograph grade 27-525 PS, while applying lessons learned and improving upon shortcomings they found within the Nouvelle Lemania-based caliber 27-70 CH.
Consider a chronograph mechanism as a distinct module, and that, through a”clutch,” is coupled into the movement to power the chronograph’s indicators once activated. For traditional and aesthetic reasons, Patek opted for a timeless, column-wheel-based architecture using a lateral-clutch engagement mechanism. The alternative, a vertical clutch, was used by Patek within their own self-winding CH 28-520 caliber launched in 2006 and used in references 5960 and 5980. Vertical-clutch coupling has some advantages, such as greater efficacy and less jitters on the hands once the chronograph is started/stopped/reset. But to get a large-diameter, manual-winding movement, the aesthetics of the bridges and their design would have been comparatively unappealing if a vertical-clutch-based layout was utilized.
Patek addressed the weaknesses of this lateral-clutch mechanism, focusing on functionality, reliability, and functionality. Their understanding basis for doing this was as great as it gets. Patek had extensive experience reworking one of the best manual-winding, lateral-clutch chronograph calibers of time — the Nouvelle Lemania 2310. Building off precisely the exact same quality found in ancient Omega Speedmasters that moved to the moon (the Omega caliber 321), Patek performed extensive modifications to extend the 2310’s power reserve and boost its escapement, while finishing it to its highest standard. Reworked into the Patek caliber 27-70 CH, it performed admirably in the benchmark 5070 chronograph and perpetual calendar chronograph references 3970 and 5970.
With this unmatched experience, the new caliber 29-535 PS was designed from the ground up, incorporating six patented innovations that practically eliminate the weaknesses found in prior lateral-clutch chronographs. The highlights of those innovations include:
1. Optimized tooth — The gears in the chronograph mechanism use teeth using a patented shape, so that when they engage together, there’s minimal drama between them. The design was first used in the 27-525 split-seconds chronograph caliber, and removes hands jumps (jitters), raises energy efficiency, and reduces friction for longer service periods.
2. Functional column-wheel cap — A hallmark of a very high grade chronograph is a nicely finished”cap” covering the column wheel. It ended up being a feature needed for the Geneva Seal, also has been consistently used by Patek for over a century. Formerly only a decorative feature, with the 29-535, Patek created the column-wheel cap functional. It is now used to enable precise adjustment and penetration for the clutch that engages the chronograph wheel, simplifying assembly and servicing, while still improving the chronograph’s functionality.
3. Pierced-out minute camera — A new slot within this cam functions to significantly reduce the quivering of the chronograph hand when it returns to zero upon pressing the reset button at four o’clock.
4. Synchronization between the clutch lever and obstructing lever — Without becoming overly technical, Patek used a simplified layout between both of these levers to be able to suppress unwanted jumping of their chronograph seconds. When stopped or started, the chronograph hand begins and stops exactly where it should.
In addition, the 29-535 PS includes a fantastic, instantaneous moment counter. When the chronograph seconds hand spans the 60-second mark, the minute hand at 3 o’clock jumps immediately to the next second. It is completely delightful to see, and gives the wearer the feeling that they’re holding an instrument built with precision.
Fitted atop the chronograph mechanism is a all-new perpetual calendar module made to fit the new 29-535 architecture. The module, with 182 components, is extremely thin, measuring only 1.65 mm in diameter, with a diameter of 32 mm, making it slightly wider compared to 29.6 mm base chronograph caliber. The entire thickness of the motion is merely 7.0 mm, 2/10th’s of a millimeter thinner than the 27-70 CH.
It incorporates a more exact moon-phase index than its predecessor — true to one day every 122 years. While not the most accurate moon stage on the market (that distinction belongs to Lange in the present time ), it is pretty damn great.
A very large quality, free-sprung escapement using a Phillips overcoil and a Gyromax balance wheel oscillating at 28,800 bph regulates the 29-535. A significant increase over the 18,000 bph rate of this 27-70 CH, the greater rate enables high accuracy even when using a smaller diameter balance wheel. Patek’s”Patek Philippe Seal” criteria requires rate accuracy between -3 to +2 minutes per 24-hour interval for moves larger than 20 mm in diameter. The speed accuracy performance of the example was exceptional. After my test period, with twisting performed every 24 hours, the detected accuracy was +2 seconds over the four days (+0.5 sec/day average) during which I measured its performance.
Compared with the balance wheel of the 27-70 CH, the 29-535’s is significantly smaller, and uses only four adjustable masses versus eight found around the 27-70 CH. As for me, I prefer the slower beat rate with larger balance wheel, as the 28,800 bph speed sounds hurried and quite non-traditional. Additionally, the usage of merely four masses on the equilibrium seems like a cost-cutting measure more appropriate to get a watch retailing for less than those using this movement.
These minor quibbles aside, I believe Patek Philippe perpetual calendar rose gold fake watches struck a home run in creating a gorgeous chronograph quality that will stand the test of time. Through its sapphire caseback, this in-house Patek Philippe caliber looks just stunning, and to some purists, more appealing in its traditional structure than A. Lange & Söhne’s profound, three-dimensional chronograph calibers.
(A Week) About The Wrist
With a case measuring 41 mm in diameter and 12.4 mm thick, it’s Patek’s biggest perpetual calendar chronograph up to now. Maintaining the concave bezel and likewise stepped and flared lugs used from the 5970, the water-resistant case is balanced and manly. It is 1 mm wider than the 5970 and, impressively, 0.6 mm thinner. These updated dimensions work superbly — the proportions are just about ideal for my own sensibilities. As a result of its well-proportioned situation and curved lugs, the 5270 fit my somewhat little, 6.75-in. Wrist well, and I imagine it will comfortably fit nearly all wrist sizes. The placement of the square-shaped pushers and crown is beautifully centered. Overall, I give an A+ to Patek to your 5270’s case layout.
The tactile sense of starting, stopping, and resetting the chronograph pushers was exceptional to mepersonally, and certainly among the best I’ve encountered. The immunity of this pushers on this case might be a bit too tight for some, however. As I operated the chronograph, no jumps or jitters were observed on any of their hands. The chronograph hand ceased exactly where it should, and when resetting, it returned to zero absolutely each time without a quiver visible to my eyes. Watching the minute counter progress immediately into the next minute was a joy — so exact, so fast. Its outstanding operational functionality made it clear for me: Patek succeeded in developing a state-of-the-art, manual-winding, lateral-clutch chronograph caliber from the 29-535.
With an all-new perpetual calendar module designed specifically for the 29-535 base, it might have been fantastic to see instant alterations for your day and date indicators occurring at exactly 12:00 a.m. Instantaneous calendar indications would have added significant sophistication, so Patek likely opted for gradual calendar transitions due to the potential negative influence on timekeeping accuracy and dependability. A noble design option, in my view.
An individual can’t discuss a perpetual calendar chronograph from Patek Philippe perpetual calendar tourbillon replica watch without mentioning the possible long term collectibility of a specific reference. How does the 5270 fit in with its predecessors? The verdict is still out on that, as the watch is still very much living and Patek references rarely build steam until after they’ve been discontinued. I will mention that the 1518, 2499, 3970, and 5970 are all fanstastic bits, each with their lovers, and the simple actuality that they are discontinued assists their desirability for long-term collectors.
Furthermore, production for all preceding references was limited by supply from outside movement firms — Valjoux first, then Lemania. We know roughly how many of each reference was produced and we know that no more will be produced. We can’t say that about this new benchmark, as Patek holds all the keys to production. However, I feel the 5270 to be a watch of wonderful significance, containing the very first in-house mechanism with this great combination of complications. Add to the greatest diameter in the family, and over 1 dial variant, and down the road, the 5270 could very well be a very collectible piece. The 5270-001 (introduced in 2011 and discontinued in 2013) is currently experiencing increased demand from collectors, particularly those with an aversion to the”chin.”
Furthermore, the current two dial options are pleasing to many who disliked the oversized”Patek Philippe perpetual calendar split second chronograph clone ” emblem on the first. The blue dial, as seen in this review, appears to be preferred among collectors, and to quote 1 collector friend who now owns this quite watch,”together with all the blue dial, they mended the opinion .” Further, Patek produced a limited edition 5270G exclusively for German merchants this past year, and those cases happen to be selling well above retail at auction. So, though some might say the 5270 lacks some of the charm of their pre-manufacture movement bits, the high-end motion, large size, dial variants (that will surely lead to collectors defining different”series” of the view ), and the general attractiveness of 5270 can make this a very desirable piece for generations.
There is so much to appreciate about the 5270. It is fitted with a totally superb in-house movement housed with a totally balanced and proportioned case. I’ll admit, I was a skeptic on the new 29-535 PS, believing it would not function in addition to the heritage caliber 27-70. I was impressed by its operational performance and precision.
The dial is expansive, logically laid out, and simple to read. The polarizing”chin” found on the dials of the 5270G-013 and 5270G-014 is the only difficulty I believe a substantial design weakness. In all fairness, it is a criticism based on personal taste that many will disagree with. And it is one that is easily rectified when or if the dial of this new 5271P is fitted across all of versions.
I feel the 5270 to be among the finest mechanical watches produced in Switzerland now, combining historical aesthetics and design with modern technical updates. The 5270 is very much a contemporary watch that pays respect to people who came before it, and a worthy carrier of the great family’s torch.