Patek Philippe – Ref. 5308G-001 Quadruple COMPLICATIONS

 

Patek Philippe – Ref. 5308G-001 GRAND COMPLICATIONS Quadruple COMPLICATION Minute Repeater Perpetual Calendar Monopusher Chronograph Gold 42mm Ice-Blue Dial - 2025

A new Quadruple Complication for connoisseurs

Having made its global debut as a limited edition in platinum on the occasion of the Patek Philippe Grand Exhibition “Watch Art” Tokyo in 2023 (5308P-010), Reference 5308 is entering the manufacture’s current collection. A true feat of miniaturization and energy management, this self-winding Quadruple Complication unites a minute repeater, a split-seconds chronograph endowed with two new patented mechanisms and an instantaneous perpetual calendar with aperture displays. The new caliber R CHR 27 PS QI movement with optimized performances greets the world in an elegant white-gold case with pierced lugs, harmonizing with an-ice-blue sunburst dial.

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In 2008, Patek Philippe reaffirmed its supreme mastery of the Grand Complications by launching as a feature of its regular collection Reference 5207, an innovative timepiece uniting a minute repeater, a tourbillon and an instantaneous perpetual calendar with aperture displays whose original concept was confirmed by two patents (caliber R TO 27 PS QI). With its modern design, enhanced by a sporty touch, this wristwatch was the first of a new breed of Grand Complication in regular production, intended for daily wear.

 In 2011, the manufacture continued this saga of exceptional pieces by presenting Reference 5208, a self-winding watch combining a minute repeater, a mono-pusher chronograph and an instantaneous perpetual calendar with aperture displays. The first Patek Philippe Triple Complication wristwatch to include a chronograph, Reference 5208 also stood out as one of the rare ultra-complicated watches to be self-winding. To enable the caliber R CH 27 PS QI movement to fulfill all its functions precisely and reliably, the manufacture’s engineers had to innovate, notably by placing the chronograph mechanism between the base movement (with minute repeater) and the perpetual calendar module –which proved an extremely complex task. In 2017, a unique version of this Triple Complication in titanium (5208T-010), donated to the charitable auction Only Watch, went under the hammer for 6.2 million Swiss francs.

From the Triple to the Quadruple Complication

Yet again, Patek Philippe has chosen to push back the frontiers of the great watchmaking art, by endowing this timepiece with a new additional function, and no minor one at that: a split-seconds, or rattrapante, (rattraper: to catch up) mechanism: an exceptional device that ranks–alongside the minute repeater and the tourbillon – as one of the top three most difficult horological complications to produce. 

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It takes a highly sophisticated mechanism to control a second sweep chronograph hand that can be stopped in order to measure an intermediate time (or keep a reference time) and then released so that it overtakes the other sweep seconds hand in a fraction of a second and the two superimposed hands continue to circle the dial as one. Destined for devotees of haute horlogerie, the new self-winding Reference 5308 thus unites four complications of which three (minute repeater, instantaneous perpetual calendar and the split-seconds function) are already considered Grand Complications in their own right.

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A true feat of miniaturization and mastery of the forces to which the tiny parts are subjected, it stands out by the extreme complexity and density of its construction –notably the four concentric sweep hands with their particularly long staffs–while respecting all the directives of the Patek Philippe Seal, including the criteria for rate accuracy, strengthened in 2024: variations in rate must now lie within a range of -1 to +2 seconds per 24 hours.

A new caliber with optimized performances

The addition (between the base movement and the chronograph module) of a split-seconds mechanism, a voracious consumer of energy, represented a formidable challenge for the manufacture’s engineers. In particular, the specifications required that the volume of the new movement remain as compact as possible, with minimum extra thickness. Mission accomplished: despite the 80 parts needed to add the split-seconds function (799, compared with 719 on the caliber R CH 27 PS QI), the new caliber R CHR 27 PS QI saw an increase in thickness of only 1.93 mm (12.28 mm versus 10.35). For optimal integration of the split-seconds function (which consumes as much energy as the chronograph mechanism when the latter is running), the designers decided to boost the movement’s performance by taking action at several levels. 

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The barrel spring torque was increased by means of a strip spring in a thicker, tougher material and a smaller barrel arbor –making it possible to keep an identical spring length, number of turns and power reserve (minimum 38 hours – maximum 48 hours with the chronograph stopped). This increase in the barrel torque to manage the split-seconds mechanism made it necessary, by chain reaction, to increase the inertia of the balance so as to ensure better rate stability by avoiding “knocking” phenomena (shocks in the escapement, when the amplitude of the balance is too high). As regards the off-center mini-rotor in 22K gold, this was replaced by a mini-rotor in platinum –a metal whose greater mass made it possible to increase the winding power and thus rewind without encumbering the new barrel.

A new patented system, eliminating friction of the chronograph wheel

To reduce energy consumption, the designers also turned their attention to the split-seconds chronograph by developing two innovations for which they have filed patent applications. The first concerns the coupling system. In a horizontal-clutch chronograph, the connection between the seconds wheel and the chronograph wheel (which carries the sweep seconds hand) is made via the clutch wheel actuated by the clutch lever. To avoid any vibration of the sweep hand, the usual chronograph wheels are equipped with a friction spring that exerts a slight braking effect –which consumes energy. Patek Philippe has eliminated that friction by replacing the usual conventionally toothed clutch wheel with an innovative system of backlash-compensation wheel. 

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Manufactured by the LIGA process (lithography, electroplating and molding) this nickel phosphorus component presents an avant-garde design with long slotted teeth, each incorporating a tiny strip spring 18 microns thick that grips the teeth of the chronograph wheel, thus removing any risk of the sweep second hand’s vibrating – with no need for adjustment. A meeting of tradition and innovation that perfectly reflects the Patek Philippe spirit. This principle recalls that of the patented anti-backlash wheel driving the seconds pinion, launched in 2019 in the new self winding base caliber 26-330 (introduced in the Calatrava Weekly Calendar Reference 5212A-001). Furthermore, the profile of the teeth and the strip springs was entirely revised for optimal adaptation to a horizontal-clutch chronograph mechanism, with a view to enhanced performance and reliability.

A new patented mechanism for isolating the split-seconds hand

The second patented innovation concerns the split-seconds mechanism, located beneath the chronograph module. In conventional split-seconds mechanisms, when the split-seconds hand is stopped (the jaws of the clamps close) for the read-out of an intermediate time, the split-seconds lever continues to rotate around the chronograph heart-piece –creating friction that consumes energy. In the new system developed by Patek Philippe, an isolator mechanism enables this lever to be raised, separating it from the chronograph mobile. This prevents the stopping of the split-seconds mobile from influencing the amplitude of the balance –and thus the reliability of the movement, as well as its power reserve when the chronograph is engaged. 

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Patek Philippe has already designed systems for isolating the split-seconds lever, for the manually wound caliber CHR 29-535 PS Q in 2012 (split-seconds chronograph and perpetual calendar Reference 5204) and caliber CHR 29-535 PS in 2015 (split-seconds chronograph Reference 5370). On the new Reference 5308G-001, the entire construction was revised to reduce the thickness of the isolator mechanism as much as possible, by means of a concentric dual-lever operating mode.

A mono-pusher split-seconds chronograph

The monopusher chronograph with column wheel and horizontal clutch, distinguished by its particularly slender construction, displays 60-minute and 12-hour counters at 3 o’clock and 9 o’clock respectively. Its single pusher at 2 o’clock enables the user to actuate the start, stop and re-set functions successively (a 3-step chronograph). The split-seconds hand, equipped with its own column wheel, is operated by the pusher at 4 o’clock. 

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A single pressure stops the split-seconds hand; a second pressure re-starts it, whereupon it catches up with the running sweep hand. This process of stopping and re-starting the split-seconds hand may be repeated at will while the chronograph sweep-seconds hand is in action. At the end of the timing event, the user actuates the pusher at 2 o’clock to stop the two hands conjointly and reset them to zero.

A minute repeater chiming on two gongs

The minute repeater chiming on two classic gongs offers the legendary sound quality of the Patek Philippe chiming watches – Grand Complications that are the fruit of an expertise reserved for the elite of master watchmakers. 

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This highly sophisticated system of tiny racks, snails, hammers and gongs, actuated by the slide-piece set into caseband at 9 o’clock, strikes, on demand, the hours on the low-pitch gong, the quarters by alternating strokes (high and low pitch) and the minutes elapsed since the last quarter on the high-pitch gong. 

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It takes great experience, dexterity and a perfectly trained musical ear to obtain that “Patek Philippe sound” sought after by connoisseurs. Thierry Stern, president of the manufacture, personally listens to the chime of each minute repeater watch emerging from the workshops, before deciding whether it can be delivered to its lucky owner.

The sophistication of an instantaneous perpetual calendar with aperture displays

The instantaneous perpetual calendar with aperture displays, a feat reserved for a very select number of timepieces, benefits from the same exclusive mechanism, distinguished by two patents, introduced in 2008 in Reference 5207, and found again in 2011 in Reference 5208. This system, which alone accounts for 220 of the 799 parts comprising the movement, enables the jumps of the indications in 30 milliseconds in the four day/date/month/leap year apertures, even with a residual power reserve of ten hours. The task was made still more complex by the use of disk displays, since the mechanism must set in motion much greater masses than would a display by hands. The instantaneous display demands perfect energy control, to retain the disks and then release them in one go. 

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A large lever comprising 15 parts, some of them mobile (first patent) ensures a precise jump of all the displays at the same instant. A design with two complementary jumper springs acting in opposite directions (second patent) ensures that the energy deployed for each change remains constant, despite large differences in the displacement angles –from the jump of one day at the end of months with 31 days to the jump of four days at the end of the month of February in non-leap years. This avoids any incomplete jumps caused by lack of power or by indications’ jumping too far owing to surplus energy.

A Ice-blue sunburst dial combining elegance and legibility

The new Quadruple Complication Reference 5308G-001 features an elegant Ice-blue sunburst dial presenting faceted applied hour markers and faceted dauphine-style hands, all in white gold with blue metallization. The accent is on legibility, ensuring that the thirteen indications controlled by the caliber R CHR 27 PS QI movement stand out clearly. 

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The perpetual calendar’s day, date and month displays appear in three apertures arranged along an arc between 10 o’clock and 2 o’clock, in an inlaid frame of white gold with blue metallization –with a slightly larger aperture for the date, the most important piece of information. Completing these calendar displays are two round apertures for the day/night indication at 8 o’clock and the leap-year cycle at 4 o’clock, both indispensable when setting the calendar.

A white-gold case with skeletonized or open worked lugs

To house this exceptional mechanism, Patek Philippe chose white gold. Endowed with the same design and diameter (42 mm) as Reference 5208, this classic, understated case, hand polished throughout, is distinguished by its concave bezel and skeletonized lugs. 

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The watch is delivered with two interchangeable case backs, one in sapphire crystal, the other in white gold. Its refined allure continues through to an alligator-leather strap in shiny navy blue equipped with a new, patented triple-blade fold-over clasp in white gold, ensuring comfort and security.

New patents

• Anti-backlash clutch wheel (European patent EP 3492779A1)

This system of an anti-backlash clutch wheel avoiding any vibration of the chronograph sweep-seconds hand makes it possible to eliminate friction of the chronograph wheel- and thereby to save energy.

• Isolation of the split-seconds hand (European patent EP 3179318A1)

This isolator mechanism makes it possible to raise the split-seconds lever when the split-seconds hand is stopped instead of allowing it to continue its course around the chronograph heart-piece, and thereby to reduce energy consumption.

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Patents taken over from caliber R TO 27 PS QI (Reference 5207, 2008)

• Timepiece with a calendar mechanism (European patent EP 1734419 A1)

This system of a large lever with an original and complex shape, comprising 15 parts, some of which are mobile, enables simultaneous and instantaneous actuation of all the perpetual calendar indications.

• Device actuating in its fall a large lever controlling the display of an instantaneous perpetual calendar in a timepiece equipped with a perpetual or secular perpetual calendar mechanism (Swiss patent 01080/07)

This system endowed with two jumper springs of equal power acting in opposite directions makes it possible to advance the date disk, at the change of the month, with a constant force, regardless of the duration of the elapsed month (28, 29, 30 or 31 days).

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TECHNICAL SPECIFICATIONS

Collection:   GRAND COMPLICATIONS

Model:  Quadruple COMPLICATIONS Repeater Perpetual Calendar Monopusher Chronograph

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 Reference: 5308G-001

Case
    Material: White gold with pierced lugs
    Diameter: 42 mm
    Width (from 3 to 9 o’clock with crown): 46.19 mm
    Lug-to-lug: 52.11 mm
    Total height (sapphire-crystal back to lugs): 17.71 mm
    Height (crystal to crystal): 17.71 mm
    Lug width: 22 mm
    Delivered with two interchangeable case backs, one in sapphire crystal, the other in solid white gold
    Not water-resistant, protected against humidity and dust
Dial and hands
    18K white gold with Ice-blue sunburst
    11 baton-style applied hour markers in 18K white gold with blue metallization
    Triple-faceted dauphine-style hour and minute hands in 18K white gold with blue metallization
    Subsidiary seconds hand in 18K white gold with blue metallization
    Chronograph hand in steel, painted white
    Split-seconds hand in steel, painted white
    Baton-style 60-minute and 12-hour counter hands in 18K white gold
    Railway-track minute scale transfer printed in white on the periphery of the blue opaline dial
    Inlaid frames in 18K white gold with blue metallization, diamond polished, for the date, day and month apertures
Movement
    Caliber R CHR 27 PS QI
    Self-winding mechanical movement.
    Minute repeater chiming on two classic gongs. Monopusher split-seconds chronograph with 60-minute and 12-hour counters. Subsidiary seconds. Instantaneous perpetual calendar with day, date, month, leap year and day/night indication in apertures. Moon phases.
    Diameter: 32 mm (base movement with minute repeater and chronograph 28 mm, additional instantaneous perpetual calendar module 32 mm, additional split-seconds module 32 mm)
    Height: 12.28 mm (base movement with minute repeater and chronograph 5.23 mm, additional instantaneous perpetual calendar module 2.75 mm, additional split-seconds module 4.30 mm)
    Number of parts: 799
    Number of jewels: 67
    Power reserve: With chronograph stopped: min. 38 hours – max. 48 hours
    Winding rotor: Mini-rotor in platinum, unidirectional winding
    Frequency: 21 600 semi-oscillations per hour (3 Hz)
    Balance : Gyromax®
    Balance spring: Spiromax® (in Silinvar®)
    Balance spring stud: Adjustable

Displays

By hands
    Hours and minutes from the center
    Chronograph hand (sweep seconds hand) from the center
    Split-seconds hand (sweep seconds hand) from the center
    Chronograph 60-minute counter at 3 o’clock
    Chronograph 12-hour counter at 9 o’clock
    Subsidiary seconds at 6 o’clock
By apertures
    Day between 10 and 11 o’clock
    Date at 12 o’clock
    Month between 1 and 2 o’clock
    Moon phase at 6 o’clock
    Day/night indication at 8 o’clock
    Leap year at 4 o’clock
Push pieces
    Chronograph pusher at 2 o’clock (3-step monopusher: start, stop and reset to zero)
    Split-seconds pusher at 4 o’clock (stop and re-start)
Correctors
    Day between 11 and 12 o’clock
    Month between 12 and one o’clock
    Moon phase between 5 and 6 o’clock
    Date between 6 and 7 o’clock
Strap and buckle
    Alligator leather with large square scales in shiny navy blue with patented triple-blade fold-over clasp in 18K white gold

Slide piece: Set into the caseband at 9 o’clock and used to actuate the minute repeater

Hallmark: Patek Philippe Seal

🔴Price:  CHF 1,050,000💰

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Press Release - 2025
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PATEK PHILIPPE SA GENEVE
Chemin du Pont-du-Centenaire 141 – 1228 Plan-les-Ouates
P.O. Box 2654 – CH - 1211 Geneva 2 - Switzerland
Tel. + 41 22 884 20 20 – Fax + 41 22 884 25 47
-------------------------------------------------------
www.Patek.com

Patek Philippe – 1938P-001 MINUTE REPEATER Alarm Exclusive Edition

 

Patek Philippe – Ref. 1938P-001 GRAND COMPLICATIONS Minute Repeater Alarm Platinum Exclusive Edition - 2023

Patek Philippe launches a limited edition with an exclusive new movement in tribute to Philippe Stern

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To celebrate the 85th birthday of Philippe Stern, president of the manufacture from 1993 to 2009 and current honorary president, his son Thierry Stern decided to honor his father by creating a special edition, the reference 1938P, endowed with a completely new exclusive movement and housing a minute repeater, his father’s favorite complication.

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From the time of its founding in 1839, the Patek Philippe manufacture has made its mark as a virtuoso of chiming watches, whether those that strike automatically “in passing” (grande sonnerie, petite sonnerie) or those that strike on demand (repeaters). In 1989, on the occasion of the manufacture’s 150th anniversary, Philippe Stern, then company director, launched the great revival of the wrist-worn minute repeater by announcing the famous self-winding caliber R 27, the first movement of its kind designed and built entirely in the manufacture’s own workshops. 

 

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Since then, the minute repeaters have steadily regained a privileged place in Patek Philippe’s product range; indeed they now constitute the largest collection of minute-repeater wristwatches in regular production. No fewer than a dozen timepieces offer this Grand Complication, alone or combined with other functions (grande and petite sonnerie, tourbillon, perpetual calendar, chronograph, World Time etc.).

In tribute to 85 years of watchmaking passion

To celebrate Philippe Stern’s 85th birthday, Thierry Stern (of the fourth generation of the Stern family, appointed president in 2009) decided to honor his father by creating a special edition of 30 watches, endowed with a completely new movement developed solely for this piece and never to be used again. 

 

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A watch identified as Reference 1938, for the year of the honorary president’s birth. The choice naturally went to a minute repeater, Philippe Stern’s favorite complication, combined with an exclusive acoustic function: an alarm chiming the programmed time. This complex mechanism was one of the five acoustic functions and one of the two patented world firsts unveiled in 2014 for the manufacture’s 175th anniversary on the Grandmaster Chime Reference 5175, the most complicated Patek Philippe wristwatch (20 complications), equipped with the manually wound caliber 300 “GS AL 36-750 QIS FUS IRM”. 

  

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Joining the regular collection in 2016 as Reference 6300, the Patek Philippe Grandmaster Chime unites a grande sonnerie, a petite sonnerie, a minute repeater, a date repeater chiming the date on demand and an alarm chiming the programmed time.

A new technical challenge

Taking this alarm function chiming a programmed time and integrating it into the emblematic caliber R 27 proved a formidable task. For Patek Philippe’s engineers, development of the new caliber R AL 27 PS self-winding movement meant fundamentally rethinking the minute repeater mechanism in order to accommodate the alarm. The challenge was to create a watch in which the minute repeater and the alarm chime on the same two classic gongs while retaining the system of a slide piece set into the left flank of the case, a prized visual signature of the Patek Philippe minute repeaters. 

 

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This required that upon actuation of the slide, the movement be capable either of instantly striking the time displayed on the dial (in minute-repeater mode) or of putting the strike on hold until the time displayed corresponds to the programmed time (in alarm mode). Contrary to classic minute repeaters, where winding by means of the slide instantly releases the striking-work, the addition of an alarm system made it necessary to be able to disengage the strike-work barrel from the strike train (the quarter rack, the minute rack, the hour beak).

Four new patents

All these technical constraints called for the addition of 227 parts, including a lever and column wheel for selection of the chiming mode and a fusee device with a strike-work detent mechanism that temporarily disconnects the power source (the strike- work barrel drum) from the striking mechanism–a system usually reserved for grande sonnerie watches. 

 

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In developing caliber R AL 27 PS its designers filed four new patents for mechanisms making it possible, notably, to switch with complete safety from one chiming mode to the other; to delay the alarm strike until the right moment; to ensure, in every case, the correct strike sequence of “hours, quarters and minutes”; and to guarantee that the strike-work barrel is always fully armed with each actuation of the slide –so that the watch can always, if necessary, sound up to 31 strikes for the alarm (12:58). Furthermore, the strike-work barrel was fitted with a slip bridle to avoid any excessive tension in the spring.

Great ease of use

Here, as in all Patek Philippe complicated watches, technical complexity is allied with great ease of operation –a design philosophy that puts the user’s needs first. The push-piece integrated into the crown serves to select the chiming mode, which is displayed in a small bell-shaped aperture at 3 o’clock. 

 

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When the watch is in minute-repeater mode (black bell) the user can actuate the repeater slide at any time to hear the chimes of the hours, quarters and minutes elapsed since the last quarter. When the watch is in alarm mode (red bell) the slide must be actuated again to wind the alarm (the bell changes from red to white). When the alarm has been actuated but has not yet sounded (white bell) it is possible to return to minute-repeater mode by pressing on the push-piece without this releasing the strike.

A 12-hour alarm

The 12-hour programmable alarm time is set from one quarter-hour to the next by means of the crown pulled out to the middle position and the Breguet-style center alarm hand in rose gold pointing to the scale in powdered rose gold on the periphery of the dial. To allow the maximum number of chimes to be heard, the alarm of Reference 1938P-001 always strikes two minutes before the programmed time. 

 

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Accordingly, if the alarm has been set for 3 o’clock, instead of three low-pitched strikes (which could easily go unnoticed) the watch will sound two low-pitched strikes, three double high-low strikes and 13 high-pitched strikes, making 21 strikes in total. A true musical interlude. Safety systems prevent any damage in the event of incorrect manipulation –such as successive attempts to arm the slide when the alarm has already been actuated, or adjusting the movement time when the watch is striking.

A portrait in Grand Feu miniature painting on enamel

The tribute to Philippe Stern continues on the 18K gold dial with its portrait in Grand Feu white and gray miniature painting on enamel, on a ground of Grand Feu black enamel. A tiny picture built up in small deft touches –fruit of one of the precious rare handcrafts that the manufacture’s honorary president has taken such care to nurture. 

 

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Applied Breguet-style numerals and Breguet-style hour and minute hands, all in white gold, contrasting with the rose gold of the alarm hand and scale, lend their elegance to the time display.

A platinum case with an engraved dust cover

The platinum case, hand polished throughout, is 41 mm in diameter. With its straight lugs and screwed-in strap bars, it too recalls one of the creations dear to Philippe Stern, dating from 1989, when, on the occasion of the manufacture’s 150th anniversary, he launched the limited edition Reference 3960 – a timepiece in the “Officer’s” style reminiscent of the earliest wristwatches, which emerged at the turn of the twentieth century. Platinum has been chosen as the most noble of metals, but also because it represents the greatest acoustic challenge for a minute repeater when the aim is to obtain the true “Patek Philippe sound” beloved of connoisseurs. 

 

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Like all Patek Philippe watches in platinum, Reference 1938P-001 has a diamond set into the caseband at 6 o’clock. The case is also endowed with a sapphire crystal back protected by a hinged dust cover bearing the hand-engraved inscription “A mon père, 85 ans de passion horlogère” (To my father, 85 years of watchmaking passion). The sapphire crystal provides a fine view of the particularly painstaking finish lavished on the new R AL 27 PS self-winding movement. The chamfered edges of the bridges and hammers are gilded. 

 

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The 22K yellow-gold mini-rotor is rhodium plated with yellow-gold edges and adorned with a black-lacquered hand engraving reproducing Philippe Stern’s signature. The touch of elegance and comfort extends to the alligator leather strap in shiny black with a platinum fold-over clasp.

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Patents for caliber R AL 27 PS

• Unidirectional coupling mobile (European patent EP4058853A1)

This unidirectional coupling system was designed to form the connection between the rack and the strike-work barrel drum when the strike-work barrel spring is being wound (actuation of the slide piece). On the way out, the rack winds the strike-work barrel, whereas as it returns, it disconnects from the barrel –thereby preventing the strike-work barrel spring from unwinding.

⦁    Timepiece incorporating a minute repeater and an alarm, with reversible selection by the user (European patent EP4071560)

This system enables the user to choose between a “minute repeater” mode, where the watch strikes the displayed time directly after actuation of the slide piece, and an “alarm” mode, where the release of the striking work, after actuation of the slide piece, is placed on hold until the time indicated by the movement corresponds to the programmed time. This selection can be changed at will and the mechanism is designed to be insensitive to errors of manipulation.

• Timepiece with repeater and constant-travel slide piece (European patent EP4071561)

This mechanism ensures that the slide piece for the striking-work always travels the same distance when actuated, regardless of the striking mode selected (minute repeater or alarm) and the number of strikes to be struck, with no risk of breakage. In this way, the user knows that the striking mechanism always has sufficient “wind” once the slide piece reaches the end of its travel.

• Striking mechanism equipped with a delaying device (European patent EP4071562)

This system for synchronizing the racks in striking mechanisms consists of a blocking lever designed to delay the fall of the minute rack until the quarter jumper has moved towards the surprise-piece (a safety device that prevents miscounting just before a new hour begins). It ensures that the strikes always occur in the right order – hours, quarters and minutes – and therefore that the watch always chimes the correct time.

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TECHNICAL SPECIFICATIONS

Collection:   Grand Complication

Model:  Minute Repeater Alarm Reference 1938P-001

Edition
30-piece limited edition

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Movement
Caliber R AL 27 PS
Self-winding mechanical movement
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 Minute repeater and 12- hour alarm striking the programmed time on the same two classic gongs. Small seconds
Diameter: 30 mm
Height: 8.23 mm
Number of parts: 561
Number of jewels: 47
Power reserve: Min. 43 hours – max. 48 hours
Winding rotor: Mini-rotor in rhodium-plated 22K yellow gold hand-engraved with
Philippe Stern’s signature, unidirectional winding
Frequency: 21 600 semi-oscillations per hour (3 Hz)
Balance: Gyromax®
Balance spring: Spiromax® (in Silinvar®)
Balance spring stud: Adjustable

Operating controls

3-position crown

• Pushed home: manual winding
• Pulled out to middle position: setting of the alarm time in 15- minute steps
• Pulled out all the way: setting the time
• Pusher
• Pusher for selection of chiming mode set into the crown at 3 o’clock
• Slide piece
• To actuate the minute repeater and the alarm. Set into the left flank of the case.

Displays

With hands: Hours and minutes from the center, Small seconds at 6 o’clock, 12-hour alarm from the center
By a bell-shaped aperture at 3 o’clock: Indication of chiming mode: “minute-repeater” mode (black), “alarm mode” (red), alarm actuated (white)
Hallmark
Patek Philippe Seal
Case
Platinum
Brilliant-cut diamond 💎(0.02 ct) set between the lugs at 6 o’clock
Sapphire-crystal back protected by a hinged dust cover
Not water-resistant; protected against humidity and dust
Case dimensions: Diameter: 41 mm
Width (from 3 to 9 o’clock with crown): 48.16 mm
Length (across lugs): 49.4 mm
Total height (crystal to dust cover): 14.2 mm
Width between lugs: 21 mm
Dial
Dial plate in 18K gold with portrait of Philippe Stern in Grand Feu white and gray miniature painting on enamel, on a Grand Feu black enamel ground
Applied Breguet-style numerals in 18K white gold
Breguet-style hour and minute hands in 18K white gold
Breguet-style hand for the alarm time in 18K rose gold
Baton-style small-seconds hand in 18K white gold
Railway-track minute scale transfer-printed in white; small seconds dial and Patek Philippe logo transfer-printed in gray
Rose-gilt powdered quarter-hour scale for the alarm time
Strap
Alligator leather, large square scales, hand-stitched, shiny black, with platinum fold-over clasp

🔰 Edition
Limited edition of 30 watches

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Press Release - 2023
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PATEK PHILIPPE SA GENEVE
Chemin du Pont-du-Centenaire 141 – 1228 Plan-les-Ouates
P.O. Box 2654 – CH - 1211 Geneva 2 - Switzerland
Tel. + 41 22 884 20 20 – Fax + 41 22 884 25 47
-------------------------------------------------------
www.Patek.com

Patek Philippe – Quadruple Complication Ref. 5308P Platinum Edition

 

Patek Philippe – Ref. 5308P-010 Quadruple COMPLICATIONS Annual Calendar Travel Time Platinum Tokyo 2023

Patek Philippe has inaugurated the grand exhibition “Watch Art” Tokyo 2023.

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For the sixth of its grand exhibitions across the world, Patek Philippe has chosen one of its leading markets: Japan. From 10 to 25 June 2023, the public and devotees may immerse themselves in the world of the last remaining independent family-owned Genevan watch manufacture. Here they will discover a decor of more than 2,500 square meters transporting them to the atmosphere of the streets of Geneva and the lakeside and taking them behind the scenes of Patek Philippe itself. The largest exhibition ever organized by the manufacture, this event is accompanied by the launch of six limited editions and a rich collection of pieces showcasing the rare handcrafts.

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Unveiled for the first time in a 15-piece limited series during the WATCH ARTTM grand exhibition in Tokyo 2023, the new self-winding Patek Philippe Quadruple Complication watch (reference 5308P-010) combines a minute repeater, a split-seconds chronograph and an instantaneous perpetual calendar.

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The Quadruple Complication is an evolution of the Patek Philippe Triple Complication Reference 5208 launched in 2011, with minute repeater, chronograph, and instantaneous perpetual calendar. In addition to these classic complications, the Reference 5308 offers the split-seconds function.

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This new timepiece houses the Patek Philippe R CHR 27 PS QI caliber. Made of 799 parts and equipped with a platinum mini rotor that increases winding power, this self-winding movement has benefited with an increased barrel torque.

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It also incorporates two patented innovations: a backlash-compensating wheel that eliminates chronograph friction at the clutch, and an isolation system that eliminates the energy consumption of the split-seconds when it is stopped.

The minute repeater on two classic gongs offers the legendary sound quality of Patek Philippe’s chiming watches. The monopusher chronograph has a 60-minute counter at 3 o’clock and a 12-hour counter at 9 o’clock. The split-seconds hand is controlled by its own pusher at 4 o’clock.

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The instantaneous perpetual calendar, a real feat reserved for very rare timepieces, ensures that the disks pass in 30 milliseconds over the three day-date-month apertures arranged along an arc.

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The rose-gilt opaline dial features charcoal gray white gold applied hour markers and faceted dauphine hands. The entirely polished platinum case measuring 42 mm in diameter stands out with its skeletonized lugs and its diamond set on the case middle at 6 o’clock.

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The watch comes with two interchangeable case backs: one in sapphire crystal adorned with the “Patek Philippe Tokyo” transfer; the other in platinum engraved with the same inscription.

This Quadruple Complication watch comes with a hand-stitched shiny chocolate brown alligator leather strap and a platinum fold-over clasp.

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TECHNICAL SPECIFICATIONS

Collection:   Quadruple Complication

Model:  Quadruple Complication in Platinum Reference 5308P-010, WATCH ART TM Special Edition Tokyo 2023

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Ref: 5308P-010

 

Case
Platinum
Diameter: 42 mm x 17.71 mm thickness
Crystal: Sapphire
Water resistance: Not water resistant; dust and moisture proof
Two interchangeable casebacks
Sapphire crystal and solid platinum both engraved with “Patek Philippe Toyko” 
Movement
Calibre R CHR 27 PS QI
Self-winding mechanical movement
Frequency: 21,600 beats per hour (3 Hz)
Winding: Automatic
Power reserve: 38-48 hours
Diameter: 32 mm
Parts: 799

• Minute repeater
• Instantaneous perpetual calendar
• Split-seconds chronograph
• 60-minute and 12-hour counters
• Moon phases
• Small seconds

Functions 
Hours, minutes, seconds, minute repeater, chronograph, day, date, month, moon phase, day/night indication, leap year, chronograph
Dial 
Rose-gilt 18k white gold opaline dial
Strap
Chocolate brown alligator leather strap with hand stitching and platinum fold over clasp

🔰 Edition
Limited edition of 15 watches

Availability: Only at Patek Philippe retailers and boutiques in Japan 🇯🇵

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Press Release - 2023
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PATEK PHILIPPE SA GENEVE
Chemin du Pont-du-Centenaire 141 – 1228 Plan-les-Ouates
P.O. Box 2654 – CH - 1211 Geneva 2 - Switzerland
Tel. + 41 22 884 20 20 – Fax + 41 22 884 25 47
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www.Patek.com