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Audemars Piguet 26579

The Audemars Piguet Royal Oak 26579 collection brings one of haute horology’s most prestigious complications into a striking ceramic Royal Oak design. Encompassing the black ceramic 26579CE, white ceramic 26579CB, and blue ceramic 26579CS, this celebrated family combines an integrated ceramic bracelet, 41mm case, Grande Tapisserie dial, and selfwinding perpetual calendar caliber 5134. Explore available Audemars Piguet Royal Oak 26579 watches for sale, compare references, and contact Avi & Co. for current availability and Audemars Piguet Royal Oak 26579 price information.

26579CS-006 Audemars Piguet 8699

Audemars Piguet Royal Oak
26579CS, Perpetual Calendar, Blue Ceramic, Blue Grande Tapisserie Dial, 41 mm
26579CS, Perpetual Calendar, Blue Ceramic, Blue Grande Tapisserie Dial, 41 mm

$494,800 494800.00

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G026579CE-004 Audemars Piguet 7866

Audemars Piguet Royal Oak
26579CE, Perpetual Calendar, Black Ceramic, Grey Grande Tapisserie Dial, 41 mm
26579CE, Perpetual Calendar, Black Ceramic, Grey Grande Tapisserie Dial, 41 mm

$249,900 249900.00

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G026579CB-002-001 Audemars Piguet 5485

Audemars Piguet Royal Oak
26579CB, Perpetual Calendar, White Ceramic, Blue Dial, 41 mm
26579CB, Perpetual Calendar, White Ceramic, Blue Dial, 41 mm

$319,900 319900.00

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The Complete Audemars Piguet Royal Oak 26579 Reference Guide

The Audemars Piguet Royal Oak 26579 occupies a special position within the history of the Royal Oak. It combines the instantly recognizable architecture of Audemars Piguet’s luxury sports watch with a selfwinding perpetual calendar and a case and bracelet constructed from highly technical ceramic. This union of traditional mechanical watchmaking and contemporary material engineering has made the Audemars Piguet 26579 one of the most recognizable modern perpetual calendars.

The reference family includes three particularly important configurations: the black ceramic Audemars Piguet Royal Oak 26579CE, the white ceramic Audemars Piguet Royal Oak 26579CB, and the blue ceramic Audemars Piguet Royal Oak 26579CS. Although the models share the same fundamental Royal Oak design and perpetual calendar architecture, each creates a distinctly different visual impression.

The black 26579CE is dark, architectural, and exceptionally versatile. The white 26579CB creates a dramatic contrast between its bright ceramic exterior and blue dial. The blue 26579CS extends its color across the case, bracelet, dial, and subdials, giving the watch an almost monochromatic appearance. Together, these references demonstrate how dramatically material and color can transform a familiar Royal Oak silhouette.

For collectors researching an AP Royal Oak 26579, the appeal extends beyond appearance. Ceramic is significantly more difficult to shape and finish than conventional watchmaking metals. Producing the Royal Oak’s alternating satin-brushed surfaces and polished bevels in ceramic requires extensive manufacturing expertise. The finished components must then fit together with the precision expected from an integrated Royal Oak case and bracelet.

The result is a watch that combines several important Audemars Piguet signatures: the octagonal bezel, visible bezel screws, integrated bracelet, Grande Tapisserie dial, astronomical moon-phase display, and a selfwinding perpetual calendar capable of mechanically tracking variations in the calendar.

Collectors searching for an AP 26579 are therefore evaluating more than a luxury sports watch. They are considering a complicated ceramic timepiece that reflects both Audemars Piguet’s historical expertise in calendar watches and its modern mastery of unconventional materials.

The Royal Oak 26579 and Audemars Piguet’s Perpetual Calendar History

The perpetual calendar is deeply connected to Audemars Piguet’s identity. Long before the appearance of the Royal Oak, the manufacturer produced highly complicated pocket watches and wristwatches capable of displaying calendar and astronomical information. In 1955, Audemars Piguet produced an important perpetual calendar wristwatch that displayed the leap-year cycle directly on its dial, an innovation that became an important part of the manufacturer’s calendar-watch history.

The Royal Oak itself debuted in 1972. Designed by Gérald Genta, it challenged traditional distinctions between sports watches and high-end watchmaking. Its exposed screws, octagonal bezel, integrated bracelet, and carefully hand-finished steel case presented an industrial visual language executed to the standards normally associated with precious-metal watches.

Calendar complications entered the Royal Oak family during the 1980s. Audemars Piguet introduced the first Royal Oak Perpetual Calendar in 1984, establishing a lineage that would eventually include watches made from stainless steel, gold, platinum, titanium, and ceramic.

The 41mm Royal Oak Perpetual Calendar platform associated with caliber 5134 appeared in 2015. It offered a larger and more contemporary interpretation of the complication while preserving the characteristic multi-counter dial arrangement. The traditional functions were joined by an indication for the week of the year around the dial’s perimeter.

The arrival of the Audemars Piguet Royal Oak 26579CE represented another major step. The black ceramic watch became the first Royal Oak constructed entirely from ceramic, including its case and integrated bracelet. It retained the traditional hand-finishing contrasts associated with the Royal Oak while replacing conventional metal with an exceptionally hard technical material.

The subsequent white ceramic 26579CB and blue ceramic 26579CS broadened the family’s visual vocabulary. Rather than treating ceramic solely as a practical material, Audemars Piguet used it to give each perpetual calendar its own distinct identity.

For this reason, the 26579 family can be viewed as a bridge between two sides of Audemars Piguet: the manufacturer’s longstanding expertise in astronomical complications and its willingness to reinterpret traditional watchmaking through modern materials.

Readers interested in the broader collection can also explore Avi & Co.’s guide to Audemars Piguet’s most collected watch, the Royal Oak, as well as the full selection of Audemars Piguet Royal Oak watches.

Audemars Piguet Royal Oak 26579 Design and Dimensions

The Audemars Piguet Royal Oak 26579 measures 41mm in diameter. Its proportions allow the perpetual calendar displays to remain readable while preserving the broad, angular presence associated with a modern Royal Oak. The case is approximately 9.5mm thick, an impressively restrained profile for a selfwinding watch containing a complete perpetual calendar mechanism.

The case retains the collection’s familiar octagonal bezel and eight exposed hexagonal screws. These are not decorative details applied to an otherwise conventional case. They are part of the visual and structural identity that has distinguished the Royal Oak since 1972.

One of the most important characteristics of an AP Royal Oak 26579 is the relationship between the case and bracelet. The integrated bracelet does not appear to be a separate accessory attached between traditional lugs. Instead, it flows directly from the case and gradually tapers around the wrist. Each link contributes to the watch’s overall architecture.

Creating this construction in ceramic is especially challenging. The material must be formed with extreme precision because it cannot be worked and repaired in the same way as steel or gold. The complex links, connecting components, bezel, case surfaces, and polished edges must all meet Audemars Piguet’s demanding aesthetic standards.

The ceramic surfaces also preserve one of the defining features of Royal Oak finishing: the contrast between linear satin brushing and polished bevels. Light travels across the edges and flat surfaces differently, giving the case and bracelet a level of visual complexity that may not be obvious in photographs.

A glare-resistant sapphire crystal protects the dial, while a sapphire display caseback reveals caliber 5134. The screw-locked crown contributes to a stated water resistance of 20 meters. This should be understood as limited protection for careful everyday wear rather than an invitation to use the watch for swimming or diving.

Despite its sports-watch origins, the 26579 is best treated as a highly complicated luxury watch. Ceramic provides excellent resistance to ordinary surface scratching, but it is not indestructible. A forceful impact against a hard surface can potentially chip, crack, or damage ceramic components.

Reading the Audemars Piguet 26579 Perpetual Calendar Dial

The dial of the Audemars Piguet 26579 balances visual drama with a substantial amount of information. Its Grande Tapisserie pattern provides a textured foundation, while the subdials divide the calendar indications into recognizable zones.

The principal functions are arranged as follows:

Day of the week: displayed by the subdial at approximately 9 o’clock.
Month and leap year: displayed by the subdial at approximately 12 o’clock.
Date: displayed by the subdial at approximately 3 o’clock.
Astronomical moon phase: displayed at approximately 6 o’clock.
Week of the year: indicated around the outer perimeter of the dial.
Hours and minutes: indicated by central Royal Oak hands.

The leap-year indicator is essential to the perpetual calendar mechanism because it identifies the watch’s position within the four-year calendar cycle. This allows the movement to distinguish an ordinary February from the 29-day February that occurs during a leap year.

The moon-phase display provides an astronomical counterpoint to the practical calendar functions. It visually represents the changing phase of the moon and adds depth and color near 6 o’clock. Although the moon phase is not required for everyday timekeeping, it is integral to the heritage and emotional appeal of complicated calendar watches.

The week-of-the-year indication is one of the defining distinctions of caliber 5134-equipped Royal Oak Perpetual Calendars. A slender central hand points to the numbered scale along the dial’s outer edge, allowing the wearer to identify the current week within the year.

Because the three ceramic versions use different color relationships, the same dial architecture produces very different results. The black ceramic 26579CE emphasizes contrast and legibility. The white ceramic 26579CB frames the blue dial with a bright exterior. The blue ceramic 26579CS uses a coordinated palette to create a more unified, color-saturated presentation.

Caliber 5134: The Movement Inside the AP 26579

At the heart of the AP 26579 is Audemars Piguet’s selfwinding caliber 5134. This movement combines automatic winding with a mechanical perpetual calendar that tracks the differing lengths of the months and accounts for leap years.

A conventional date watch generally assumes that each month has 31 days. The wearer must therefore correct it at the end of shorter months. An annual calendar offers greater sophistication by distinguishing between 30- and 31-day months, but it normally requires a correction at the end of February.

A perpetual calendar goes further. Its mechanical program tracks the four-year cycle, including the shorter month of February and the additional day in a leap year. Provided the watch continues running and remains correctly set, it does not require the ordinary monthly and annual corrections associated with simpler calendar watches.

Caliber 5134 measures approximately 29mm in diameter and 4.31mm in thickness. It comprises 374 components and uses 38 jewels. It operates at a frequency of 2.75 Hz, or 19,800 vibrations per hour, and provides a power reserve of approximately 40 hours.

Caliber 5134 specification	Details
Winding system	Selfwinding
Movement diameter	Approximately 29mm
Movement thickness	Approximately 4.31mm
Number of components	374
Number of jewels	38
Frequency	2.75 Hz / 19,800 vibrations per hour
Power reserve	Approximately 40 hours
Functions	Hours, minutes, day, date, month, leap year, astronomical moon phase, and week indication

The sapphire caseback provides a view of the movement and its oscillating weight. This adds another dimension to the ownership experience, allowing the wearer to observe a traditional high-complication movement inside a boldly modern ceramic exterior.

Owners should follow the manufacturer’s instructions when setting the calendar. Mechanical perpetual calendars contain interdependent components, and adjustments made at an inappropriate time can damage the mechanism. When the watch has stopped for an extended period, a knowledgeable watch specialist should help confirm the proper sequence for restoring all calendar indications.

Audemars Piguet Royal Oak 26579CE in Black Ceramic

The Audemars Piguet Royal Oak 26579CE is the foundational reference in the ceramic 26579 family. Its full reference is commonly written as 26579CE.OO.1225CE.01. The “CE” designation refers to ceramic, while the dark case, bezel, crown, and integrated bracelet establish a strongly monochromatic exterior.

Audemars Piguet’s historical records identify the 26579CE as the first Royal Oak made entirely from ceramic, including the bracelet. That distinction gives it importance beyond its appearance. It demonstrated that the Royal Oak’s intricate bracelet and alternating finishing techniques could be translated into ceramic without abandoning the design language of the metal originals.

The black ceramic exterior is paired with a black Grande Tapisserie dial. Contrasting white-gold hour markers and hands help organize the display, while the calendar subdials and astronomical moon phase add tonal variation. The result is technically dense but visually controlled.

Black ceramic gives the watch a more contemporary and understated character than a bright precious-metal Royal Oak. At the same time, the finishing prevents it from appearing flat. Polished bevels catch the light, while satin-brushed surfaces reinforce the geometric structure of the case and bracelet.

For many collectors, the Audemars Piguet Royal Oak 26579CE is the archetypal ceramic Royal Oak Perpetual Calendar. It was the first of the family, introduced an important material milestone, and offers a versatile color scheme that can appear either discreet or dramatic depending on the lighting.

When evaluating a pre-owned 26579CE, buyers should inspect the ceramic components carefully for evidence of impact damage. Ceramic is highly resistant to ordinary scratches, but edges, corners, bracelet links, and the area around the bezel should still be examined under magnification. The condition and accuracy of the perpetual calendar should also be reviewed by a qualified specialist.

Audemars Piguet Royal Oak 26579CB in White Ceramic

The Audemars Piguet Royal Oak 26579CB, commonly identified by the full reference 26579CB.OO.1225CB.01, transforms the character of the 26579 platform through a hand-finished white ceramic case and bracelet.

The bright ceramic exterior is paired with a blue Grande Tapisserie dial, blue subdials, white-gold applied hour markers, and Royal Oak hands with luminescent coating. The contrast makes the watch immediately recognizable, even among other complicated Royal Oak models.

White ceramic is not simply black ceramic in a different color. Audemars Piguet’s archives describe its white ceramic material as a combination of zirconium oxide and alumina. The material is heated to an extremely high temperature to form a dense and exceptionally hard structure. The brand has reported a hardness substantially greater than steel, which helps explain both its scratch resistance and the difficulty of hand-finishing it.

The Audemars Piguet Royal Oak 26579CB is especially notable for the way its case frames the dial. Where the black 26579CE creates a dark and integrated presentation, the white ceramic model separates the external architecture from the blue calendar display. The bezel and bracelet become highly visible design elements rather than receding into the dial.

This high-contrast appearance makes the 26579CB one of the boldest watches in the Royal Oak Perpetual Calendar family. It retains the same 41mm dimensions, caliber 5134, calendar layout, sapphire caseback, and 20-meter water-resistance rating as the other ceramic references, but its visual identity is entirely its own.

Prospective buyers should inspect white ceramic under neutral lighting. Although the material is resistant to ordinary scratching and discoloration, the surfaces should be checked for residue, marks, edge damage, or improper refinishing. The blue dial should also be examined for originality and consistency.

Audemars Piguet Royal Oak 26579CS in Blue Ceramic

The Audemars Piguet Royal Oak 26579CS, or 26579CS.OO.1225CS.01, presents the 26579 architecture in blue ceramic. Audemars Piguet introduced it as the first Royal Oak Perpetual Calendar with both its case and bracelet fully crafted from blue ceramic.

Its blue Grande Tapisserie dial, blue calendar subdials, blue inner bezel, blue ceramic case, and matching bracelet create a coordinated design that distinguishes it from both the black and white editions. The color is carried across nearly every visible element while polished bevels and brushed surfaces prevent the watch from appearing visually uniform.

Producing consistently colored ceramic components is technically demanding. The case, bezel, crown, bracelet links, and connecting elements must not only match in color but also meet the dimensional and finishing tolerances required by the Royal Oak design.

The Audemars Piguet Royal Oak 26579CS appeals to collectors who want the complication and recognizable geometry of the 26579 family in its most color-intensive form. It is unmistakably a Royal Oak, yet its blue ceramic construction gives it an identity that cannot be replicated by a blue dial placed inside a steel, titanium, or gold case.

As with the 26579CE and 26579CB, condition should be evaluated comprehensively. Buyers should review the exterior ceramic, bracelet articulation, clasp operation, dial, movement performance, calendar synchronization, service documentation, and accompanying accessories.

Audemars Piguet 26579CE vs. 26579CB vs. 26579CS

The three principal Audemars Piguet Royal Oak 26579 references share their core architecture and movement. The most significant differences concern color, visual contrast, production context, and collector preference.

Reference	Case and bracelet	Dial character	Overall appearance
26579CE	Black ceramic	Black Grande Tapisserie dial with contrasting calendar details	Dark, architectural, versatile, and historically important as the first full-ceramic Royal Oak
26579CB	White ceramic	Blue Grande Tapisserie dial and blue subdials	Bright, high-contrast, and immediately recognizable
26579CS	Blue ceramic	Coordinated blue dial, subdials, and inner bezel	Monochromatic, highly contemporary, and color intensive

The black 26579CE may appeal to collectors who value historical importance, versatility, and the dramatic contrast of dark ceramic with polished finishing. The white 26579CB is likely to suit someone seeking the strongest contrast between the case and dial. The blue 26579CS may be preferred by collectors who want the most unified and unconventional use of color.

There is no objectively superior version. Availability, condition, provenance, completeness, and personal preference should guide the choice. Because these watches are difficult to source, buyers may also need to balance their preferred configuration against the quality of the individual example available.

Audemars Piguet Royal Oak 26579 Price

The Audemars Piguet Royal Oak 26579 price is determined by more than the reference number alone. These watches trade in a global secondary market where availability, collector demand, condition, and completeness can materially affect the asking price.

Important valuation factors include:

Specific reference: Market demand can differ among the black 26579CE, white 26579CB, and blue 26579CS.
Condition: Original, carefully preserved ceramic components and a clean dial are important.
Movement performance: The caliber should wind, run, and advance its indications correctly.
Calendar synchronization: Day, date, month, leap year, week, and moon phase should be correctly coordinated.
Box and papers: Original warranty documentation, presentation box, manuals, setting tool, and accessories can strengthen desirability.
Service history: Properly documented service may provide useful evidence regarding mechanical care.
Production and availability: Scarce examples may command stronger prices when collector demand exceeds supply.
Seller expertise: A reputable specialist’s authentication, inspection, and after-sale support add meaningful value.

Online estimates can provide general context, but they may not reflect the condition or completeness of a specific watch. Some published figures may also be outdated by the time a buyer sees them. For an accurate AP 26579 price, it is better to request a current quote for the exact watch being considered.

Potential buyers should also distinguish between an advertised asking price and a completed transaction. Auction estimates, dealer listings, private offers, and documented sales do not necessarily represent the same market level. Currency exchange rates, taxes, import costs, payment method, and geographic availability may further affect the final acquisition cost.

Contact Avi & Co. for current Audemars Piguet Royal Oak 26579 price information, available inventory, and assistance comparing specific references.

Finding an Audemars Piguet Royal Oak 26579 for Sale

Finding an Audemars Piguet Royal Oak 26579 for sale can require patience. Production is limited relative to global demand, and the three ceramic configurations do not appear on the secondary market with equal frequency.

A buyer should begin by deciding whether color is the primary consideration or whether condition and completeness take priority. A collector focused exclusively on the Audemars Piguet Royal Oak 26579CB, for example, may need to wait longer for a suitable white ceramic example. A buyer open to all three configurations may have more opportunities to compare individual watches.

Caring for a Ceramic Audemars Piguet Royal Oak

Ceramic is favored for its hardness, color stability, and resistance to ordinary surface scratching. These qualities help a ceramic Royal Oak retain crisp-looking surfaces under careful use. However, ceramic should not be confused with an impact-proof material.

Owners should avoid striking the watch against stone, tile, metal corners, doorframes, gym equipment, or other hard surfaces. A significant impact can damage a ceramic bezel, case edge, crown, clasp, or bracelet link.

The watch may be cleaned gently with a soft, clean microfiber cloth. Any more extensive cleaning should take the limited 20-meter water-resistance rating into account. The watch should not be submerged unless its seals and water resistance have been tested by a qualified professional and the intended activity is consistent with the manufacturer’s guidance.

Movement servicing and calendar adjustments should be entrusted to appropriately trained specialists. Owners should not activate calendar correctors without understanding the proper operating sequence and the times during which adjustment may be unsafe.

When the watch is not being worn, it should be stored in a secure location where it cannot fall or strike another object. The owner should also retain the presentation box, warranty documents, manuals, setting tool, service records, and extra bracelet links.

Audemars Piguet 26579 vs. Royal Oak 26574

The 26579 and 26574 families share the 41mm Royal Oak Perpetual Calendar platform and caliber 5134. Their most obvious distinction is material.

The 26574 family has appeared in traditional watchmaking metals such as stainless steel and pink gold, as well as titanium. The 26579 family is associated with full ceramic cases and bracelets. This difference affects appearance, weight, tactile character, scratch resistance, manufacturing complexity, and collector perception.

A metal 26574 may offer a more traditional expression of the Royal Oak Perpetual Calendar. A ceramic 26579 presents the complication through a more contemporary material and a stronger visual identity. Buyers comparing the two should consider not only price but also wearability, color, rarity, long-term care, and the type of Royal Oak they want represented in their collection.

Explore additional examples on Avi & Co.’s dedicated Audemars Piguet Royal Oak Perpetual Calendar page.

Is the Audemars Piguet Royal Oak 26579 Collectible?

The Audemars Piguet Royal Oak 26579 possesses several characteristics typically associated with collectible modern watches. It belongs to the Royal Oak family, contains an important high complication, uses an extensively finished integrated ceramic bracelet, and was produced in distinctive configurations.

The black 26579CE has historical importance as the first Royal Oak made entirely from ceramic. The white 26579CB is distinguished by its bright case and contrasting blue display. The blue 26579CS introduced a fully blue ceramic case and bracelet to this perpetual calendar format.

Collectability, however, does not guarantee financial appreciation. Luxury-watch values can rise or fall due to broader economic conditions, fashion, changing collector priorities, auction results, and shifts in supply. Buyers should therefore purchase a 26579 primarily because they value its design, mechanical complexity, material innovation, and place within Audemars Piguet history.

Within the category of modern complicated sports watches, the family nevertheless offers a compelling combination of recognizable design and genuine horological substance.

Why Buy an Audemars Piguet Royal Oak 26579 from Avi & Co.?

Avi & Co. specializes in sourcing rare and important luxury watches for collectors. Every available timepiece is carefully evaluated for authenticity and condition before being offered for sale.

Clients interested in an Audemars Piguet Royal Oak 26579 for sale can receive assistance comparing the 26579CE, 26579CB, and 26579CS, reviewing current availability, understanding condition, and selecting the configuration best suited to their collection.

Avi & Co. also offers access to a broader selection of Audemars Piguet watches, including Royal Oak, Royal Oak Offshore, Royal Oak Concept, and other sought-after references.

Contact Avi & Co. to discuss current inventory, request an up-to-date price, arrange a private appointment, or obtain assistance locating a particular Audemars Piguet 26579.

Frequently Asked Questions About the Audemars Piguet Royal Oak 26579

What is the Audemars Piguet Royal Oak 26579?

The Audemars Piguet Royal Oak 26579 is a family of 41mm selfwinding perpetual calendar watches constructed with ceramic cases and integrated ceramic bracelets. Important versions include the black ceramic 26579CE, white ceramic 26579CB, and blue ceramic 26579CS.

What is the difference between the Audemars Piguet 26579CE, 26579CB, and 26579CS?

The primary difference is the ceramic color and corresponding dial treatment. The 26579CE uses black ceramic, the 26579CB uses white ceramic with a blue dial, and the 26579CS uses blue ceramic with a coordinated blue dial and subdials.

What movement is inside the AP Royal Oak 26579?

The AP Royal Oak 26579 is powered by Audemars Piguet’s selfwinding caliber 5134. It contains 374 components, uses 38 jewels, operates at 19,800 vibrations per hour, and provides an approximate 40-hour power reserve.

What complications does the Audemars Piguet 26579 have?

The watch displays the hours, minutes, day, date, month, leap year, astronomical moon phase, and week of the year. Its perpetual calendar mechanically accounts for the varying lengths of months and leap years.

How large is the Audemars Piguet Royal Oak 26579?

The ceramic Royal Oak Perpetual Calendar 26579 models measure 41mm in diameter and approximately 9.5mm in thickness.

What is the Audemars Piguet Royal Oak 26579 price?

The Audemars Piguet Royal Oak 26579 price varies by reference, condition, completeness, provenance, service history, and current market availability. Contact Avi & Co. for the current price of a specific available watch.

Where can I find an Audemars Piguet Royal Oak 26579 for sale?

Avi & Co. offers rare Audemars Piguet watches and can assist clients seeking a black 26579CE, white 26579CB, blue 26579CS, or another collectible Royal Oak Perpetual Calendar.

Is the Audemars Piguet Royal Oak 26579 discontinued?

Availability of individual 26579 references is highly limited, and certain versions may no longer appear in the current collection. Because production status and availability can change, buyers should confirm the status of the exact reference they are considering.

Is the Audemars Piguet Royal Oak 26579 ceramic scratch resistant?

The ceramic used for the case and bracelet is highly resistant to ordinary surface scratching. However, ceramic can still be damaged, chipped, or cracked by a severe impact against a hard object.

Is the AP 26579 waterproof?

Audemars Piguet specifies water resistance of 20 meters for the ceramic 26579 references. It should be treated as a complicated luxury watch rather than a swimming or diving watch.

Why is the 26579CE historically important?

Audemars Piguet identifies the black ceramic 26579CE as the first Royal Oak constructed entirely from ceramic, including its integrated bracelet. This makes it an important milestone in the collection’s material development.

How often does the AP 26579 perpetual calendar require adjustment?

When continuously running and correctly set, a traditional perpetual calendar accounts for ordinary month lengths and leap years. It will eventually require a calendar correction in the secular year 2100 because that year will not be a leap year under the Gregorian calendar.

Can I adjust an Audemars Piguet 26579 myself?

The calendar can be adjusted using the appropriate correctors and setting procedure, but owners should follow the manufacturer’s instructions carefully. Incorrect adjustment or activating a corrector at an unsafe time can damage the mechanism.

Is the Audemars Piguet 26579 a good investment?

The 26579 family is collectible because of its Royal Oak design, perpetual calendar movement, limited availability, and ceramic construction. However, future financial performance cannot be guaranteed, and buyers should purchase primarily because they appreciate the watch.

What should I check before buying a pre-owned AP 26579?

Buyers should verify authenticity, ceramic condition, bracelet fit, movement performance, calendar synchronization, service history, box and papers, included setting tool, spare links, and the seller’s authenticity guarantee.

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