Overview
The Audemars Piguet Royal Oak Tourbillon reference 26510ST.OO.1220ST.01 brings together one of modern watchmaking’s most recognisable designs and one of haute horlogerie’s most demanding complications. Presented in stainless steel and measuring 41mm, it retains the unmistakable Royal Oak language: an octagonal bezel, exposed screws, integrated bracelet and richly textured blue Grande Tapisserie dial.
At 6 o’clock, the tourbillon provides the visual and technical focus. Its rotating cage can be observed through the open aperture in the dial, revealing the precision of the regulating mechanism beneath. This is a watch for a collector who values both the architectural strength of the Royal Oak and the mechanical theatre associated with skeleton & tourbillon watches.
Offered at £89,995, this example is described as a full set in excellent condition and is available for immediate purchase and collection. Its combination of stainless-steel construction, blue dial, integrated bracelet and tourbillon complication makes it an especially compelling interpretation of the Royal Oak concept.
Brand and reference history
Audemars Piguet has been associated with ambitious mechanical watchmaking since its foundation in Le Brassus in 1875. The manufacture’s reputation was built on complicated movements, refined finishing and a willingness to develop watches that challenged established ideas of luxury. The Royal Oak, introduced in 1972, became one of the defining designs of contemporary high-end watchmaking.
Conceived by Gérald Genta, the Royal Oak replaced traditional precious-metal formality with a bold stainless-steel case, integrated bracelet and industrially inspired detailing. Its octagonal bezel, visible screws and carefully finished surfaces created a design language that remains instantly recognisable. The collection subsequently expanded to include chronographs, perpetual calendars, minute repeaters and tourbillons, while preserving the underlying identity of the original concept.
Reference 26510ST.OO.1220ST.01 belongs to that complicated Royal Oak family. The “ST” designation identifies its stainless-steel construction, while the reference is distinguished by its 41mm case, blue Grande Tapisserie dial and tourbillon display at 6 o’clock. It occupies an important position within the collection because it gives the Royal Oak’s strong geometric form a highly expressive mechanical centre.
For collectors comparing the broader range of Audemars Piguet watches, this reference offers a notably concentrated expression of the brand’s strengths: a legendary sports-luxury silhouette, an integrated bracelet and a complication that is immediately visible from the front of the watch.
Dial, hands and design detail
The blue Grande Tapisserie dial is one of the defining features of this Royal Oak Tourbillon. Its repeating raised pattern creates depth across the dial, catching and reflecting light as the watch moves. Rather than acting as a simple background, the guilloché-style texture gives the surface a distinctive architectural rhythm and reinforces the geometric character of the case and bezel.
The tourbillon aperture at 6 o’clock interrupts that pattern with purpose. The exposed cage introduces movement and contrast, allowing the wearer to observe the regulating assembly as it rotates. This placement keeps the complication balanced within the dial while maintaining a clear overall composition. The effect is technically impressive without sacrificing the Royal Oak’s disciplined, highly structured appearance.
Applied hour markers and matching hands provide legibility against the blue dial, while the polished and brushed finishing associated with the Royal Oak adds further visual definition. The hands are designed to stand apart from the textured surface, ensuring that the watch remains practical to read despite the complexity beneath.
The dial’s appeal changes with the light. In subdued conditions, the blue appears deep and composed; under direct light, the Grande Tapisserie pattern becomes more prominent and the surrounding applied details take on greater definition. It is a design that rewards close inspection, particularly when the tourbillon is in motion.
Case, bracelet and wearability
The 41mm stainless-steel case gives this reference a confident wrist presence while remaining faithful to the proportions that have made the modern Royal Oak so versatile. Its octagonal bezel is framed by the characteristic exposed screws, creating a strong visual outline that is immediately identifiable across the room. The case combines polished and satin-brushed surfaces, producing alternating highlights and adding depth to the otherwise disciplined geometry.
Stainless steel is central to the Royal Oak’s character. It gives the watch a purposeful, contemporary quality while allowing Audemars Piguet’s finishing to become part of the design. The carefully executed contrast between brushed planes and polished edges is particularly effective around the bezel, case profile and bracelet links.
The integrated stainless-steel bracelet continues the lines of the case rather than appearing as a separate component. Its articulated links are designed to follow the wrist, and the combination of contrasting finishes echoes the case treatment. This integration is one of the collection’s most important design achievements: the bracelet is not merely functional, but a fundamental part of the watch’s identity.
Because the tourbillon is a high-complication watch, it is best treated as a refined mechanical instrument rather than a conventional sports watch. The steel construction provides durability for regular wear, but care should still be taken around impacts, magnetism, water and abrupt temperature changes. The available condition description is excellent, and the watch is supplied as a full set.
Movement and technical specification
The defining technical feature is the tourbillon. Developed historically to reduce the positional effects of gravity on a watch’s regulating organ, a tourbillon places the balance and escapement within a rotating cage. As the cage turns, the mechanism continuously changes orientation, helping to average out certain rate variations that can occur when a mechanical watch remains in one position.
In modern haute horlogerie, the tourbillon is valued not only for its theoretical regulating benefits but also for the skill required to design, assemble, adjust and finish it. The mechanism is composed of delicate, lightweight parts that must work together with exceptional precision. In this Royal Oak, the tourbillon is visible through the dial aperture, making the technical achievement part of the wearer’s daily experience.
The movement is also visible from the reverse through the sapphire crystal case back, allowing inspection of the tourbillon cage and the wider architecture of the calibre. This two-sided visibility gives the watch additional depth: the front presents the complication as a focal point, while the rear offers a more intimate view of the movement’s construction and finishing.
The principal specifications supplied for this watch are a 41mm stainless-steel case, blue Grande Tapisserie dial, tourbillon at 6 o’clock, sapphire crystal case back, integrated stainless-steel bracelet and reference 26510ST.OO.1220ST.01. The movement calibre, power reserve, water-resistance rating and exact thickness have not been provided and should be confirmed with our team before purchase if they are important to your decision.
Sizing and how it wears
At 41mm, the case offers a substantial but balanced presence. The Royal Oak’s integrated bracelet and relatively broad visual footprint mean that the watch can appear more assertive than a conventional round watch of the same diameter. Its low, flowing profile and articulated links help it sit naturally on the wrist, while the octagonal bezel gives it a clear and unmistakable outline.
The integrated construction also affects how the watch wears. Rather than narrowing immediately from the case, the bracelet extends the design across the wrist before tapering through its links. This creates the characteristic Royal Oak stance and helps distribute the weight of the stainless-steel case and bracelet comfortably.
Wrist shape and personal preference remain important. Collectors who usually wear smaller dress watches may find the 41mm Royal Oak more prominent, whereas those accustomed to contemporary sports-luxury models will appreciate its confident proportions. The blue dial and steel finish allow it to move between formal and relaxed settings without losing its presence.
For an exact fit, bracelet sizing should be discussed before collection or dispatch. The watch is available for immediate purchase and collection, and our team can advise on practical fitting considerations based on the wearer’s wrist and preferred amount of bracelet drape.
Collectability and market value
The collectability of this Royal Oak Tourbillon rests on several distinct factors. Audemars Piguet’s Royal Oak is one of the most influential luxury sports-watch designs ever produced, and the tourbillon places this example within the manufacture’s most technically ambitious territory. The combination of stainless steel and high complication is especially compelling because it contrasts practical case material with an exceptionally demanding movement.
The 41mm format is widely appreciated for its modern wrist presence, while the blue Grande Tapisserie dial provides the colour and texture most closely associated with many sought-after Royal Oak configurations. The visible tourbillon adds an element of animation that a conventional time-only model cannot offer, giving the watch a strong identity even within a highly recognisable collection.
At £89,995, the asking price reflects the watch’s brand, reference, complication, materials and stated full-set presentation. Market value for a pre-owned high-complication watch is also influenced by condition, completeness, service history, originality and the strength of current collector demand. These factors should be assessed together rather than viewing the complication or dial colour in isolation.
It is also useful to compare this watch with other important Royal Oak executions. A chronograph offers a different form of mechanical functionality and dial layout; the Audemars Piguet Royal Oak Chronograph provides that alternative, whereas this reference prioritises the visual and technical drama of the tourbillon.
Authenticity, condition and servicing
This watch is described as being in excellent condition and supplied as a full set. The full-set description is important to collectors because accompanying presentation and documentation can support the watch’s completeness and desirability. Specific contents have not been itemised in the information supplied, so prospective buyers should contact us for confirmation of the exact accessories and paperwork included.
As with any pre-owned luxury watch, condition should be considered across the case, bezel, bracelet, clasp, crystal, dial, hands and movement. Fine surface marks can occur through careful ownership, while polished surfaces and sharp case geometry deserve particular scrutiny. Our team can provide current condition details and additional imagery where required before a purchase is completed.
Tourbillon movements require specialist care. Their complexity means that servicing should be entrusted to an appropriately qualified watchmaker with experience in high-complication Audemars Piguet calibres. A service interval should not be assumed solely from the watch’s age, and no servicing history has been provided here. We recommend discussing any available service documentation and the watch’s observed performance with us before purchase.
Authentication is approached through examination of the reference, case construction, dial details, movement, finishing, bracelet and accompanying set. We do not invent or infer provenance, serial numbers or service records that have not been supplied. Any specific authentication, warranty or service terms applicable to this example should therefore be confirmed directly with our team before placing an order.
Buying this watch from us
This Audemars Piguet Royal Oak Tourbillon is priced at £89,995 and is available for immediate purchase and collection. Its reference is 26510ST.OO.1220ST.01, and the watch is presented as a full set in excellent condition. For a purchase of this significance, we encourage interested collectors to speak with us directly so that we can answer questions about condition, contents, sizing and collection arrangements.
We can discuss the watch in practical detail, including how the 41mm case and integrated bracelet are likely to sit on your wrist, the appearance of the blue Grande Tapisserie dial in different lighting, and the visibility of the tourbillon from both sides. If you require particular photographs or clarification regarding the supplied set, please request this before committing to purchase.
Immediate collection allows a prospective owner to inspect the watch in person and assess its case finishing, dial texture, bracelet articulation and overall presence. If collection is not convenient, delivery arrangements and the applicable purchasing process can be explained by our team. Any questions about payment, documentation or after-sales support should be raised with us in advance.
The Royal Oak Tourbillon is a serious collector’s watch: visually distinctive, technically complex and rooted in one of the most important designs in modern horology. To enquire about this example, reference 26510ST.OO.1220ST.01, contact us today and our specialists will guide you through the next steps.
Frequently asked questions
What is the reference number of this Audemars Piguet Royal Oak Tourbillon?
The reference is 26510ST.OO.1220ST.01. It identifies the stainless-steel Royal Oak Tourbillon configuration described on this page.
What size is the case?
The case measures 41mm in diameter. The integrated bracelet and octagonal bezel give it a strong wrist presence consistent with the modern Royal Oak design.
What colour and style is the dial?
The watch has a blue Grande Tapisserie dial. A tourbillon aperture is positioned at 6 o’clock, where the rotating cage can be viewed during operation.
Is the tourbillon visible from the back?
Yes. The movement and tourbillon mechanism can be observed through the sapphire crystal case back, as well as through the opening on the front of the dial.
Is this watch supplied as a full set?
Yes, the watch is described as a full set. The exact contents have not been itemised in the supplied information, so please contact us to confirm the accessories and documentation included.
Can I collect the watch immediately?
Yes. This example is available for immediate purchase and collection. Please contact our team to arrange collection and to discuss any questions about condition, sizing or the included set.




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