Skip to product information
Audemars Piguet Royal Oak Offshore Tourbillon Chronograph Selfwinding 44 mm 26540ST.OO.A027CA.01 Steel Analog

Audemars Piguet Royal Oak Offshore Tourbillon Chronograph Selfwinding 44 mm 26540ST.OO.A027CA.01 Steel Analog Audemars Piguet Royal Oak Offshore Tourbillon Chronograph…

Reference 26540ST.OO.A027CA.01

Full watch configuration

Audemars Piguet Royal Oak Offshore Tourbillon Chronograph Selfwinding 44 mm 26540ST.OO.A027CA.01 Steel Analog

$223,199.00 $239,999.00
Requested condition
Brand New
Requested accessories
Full Set

By Audemars Piguet

Sourced to order. We confirm the watch, condition and final price before purchase. Reference images shown.

Sell or trade a watch

Eligible watches: 90-day returns for store credit only. Brand-new watches and other exclusions are final sale. Return terms.

Audemars Piguet Royal Oak Offshore Tourbillon Chronograph Selfwinding 44 mm 26540ST.OO.A027CA.01 Steel Analog

Audemars Piguet Royal Oak Offshore Tourbillon Chronograph Selfwinding 44 mm 26540ST.OO.A027CA.01 Steel Analog

Current Catalogue Asking Price:

Your Offer

$

Submit your offer for review. Availability and the final price require confirmation.

Preferred Contact Method
I have a trade-in / add a note

Reserve with $200

Audemars Piguet Royal Oak Offshore Tourbillon Chronograph Selfwinding 44 mm 26540ST.OO.A027CA.01 Steel Analog

Your $200 deposit is applied to the watch’s purchase price. It is refundable only if Bizak & Co. cannot fulfill your order.

Estimated remaining balance: $. Pay by bank wire or cryptocurrency after we confirm your watch and final invoice. Shipping and applicable taxes are additional.

Shipping details · Return terms

Speak with a Bizak & Co. specialist about this piece

|Call or Text

The Audemars Piguet Royal Oak Offshore Tourbillon Chronograph Selfwinding reference 26540ST.OO.A027CA.01 is a brand-new 44mm stainless steel sports-luxury watch featuring a striking blue dial and an integrated selfwinding tourbillon chronograph movement. Its iconic octagonal case, screw-down crown, and stainless steel bezel are finished to the exacting standard that defines the Royal Oak Offshore lineage.

Reference 26540ST.OO.A027CA.01 stands apart by pairing the mechanical theatre of an open-worked tourbillon with the practicality of an automatic winding system — a combination rarely achieved at this level of horological complexity. Contact Bizak & Co. today to acquire this certified authentic timepiece or browse our full selection of Audemars Piguet Royal Oak Offshore watches for sale online.

Compare it across every Royal Oak Offshore Tourbillon Chronograph reference we carry, or browse the full Audemars Piguet collection at Bizak & Co.

Buy this Royal Oak Offshore Tourbillon Chronograph, trade in your current watch, or sell us yours. Contact Bizak & Co. to make an offer or request a fair-market valuation.

Not the exact one you’re looking for?

Source your dream watch

Learn More

The Audemars Piguet Royal Oak Offshore Tourbillon Chronograph Selfwinding reference 26540ST.OO.A027CA.01 represents one of the most ambitious expressions of Gerald Genta's enduring Royal Oak design language. Introduced as an evolution of the original Royal Oak Offshore — itself a bold, oversized interpretation of the 1972 Royal Oak — the Offshore Tourbillon Chronograph elevates the collection to the summit of haute horlogerie. This reference arrives in pristine, brand-new condition, a rare opportunity for collectors who demand both provenance and immediacy.

At 44mm, the stainless steel case commands genuine wrist presence without sacrificing the architectural coherence that defines every Royal Oak Offshore. The signature octagonal bezel, secured by eight visible hex-head screws, is rendered in polished and brushed stainless steel, creating the interplay of light and shadow that has made this design an icon since its 1993 debut. A screw-down crown reinforces the case's integrity and underscores the watch's sporting ambitions.

The blue dial of reference 26540ST.OO.A027CA.01 is among the most visually arresting details of this reference. Index hour markers with luminous treatment ensure legibility across all lighting conditions, while the open architecture of the dial — characteristic of tourbillon-equipped Royal Oak Offshores — invites the wearer's eye into the mechanical landscape within. Blue dials on Royal Oak Offshores have consistently commanded strong collector interest, and this reference is no exception.

Powering the watch is Audemars Piguet's selfwinding automatic movement incorporating both a flying tourbillon and a chronograph complication. The decision to engineer self-winding capability into a movement of this complexity reflects Audemars Piguet's commitment to practical luxury — a tourbillon that regulates itself with the motion of the wrist, removing a barrier that once made tourbillon ownership cumbersome. This is watchmaking at its most sophisticated and most wearable simultaneously.

For collectors and enthusiasts seeking to buy the Audemars Piguet Royal Oak Offshore Tourbillon Chronograph 26540ST.OO.A027CA.01 online, Bizak & Co. offers this certified authentic, brand-new example with the confidence and expertise of a dedicated luxury watch dealer. Our team is available to answer every question, facilitate secure purchase, and ensure that your acquisition of this extraordinary timepiece is as refined an experience as the watch itself. Reach out to Bizak & Co. at bizakandco.com to make this reference yours.

Technical Details
Reference
26540ST.OO.A027CA.01
Model
Royal Oak Offshore Tourbillon Chronograph
Movement
Automatic
Case material
Stainless Steel
Bracelet material
Stainless Steel
Dial
Blue
Case size
44mm
Requested condition
Brand New
Requested accessories
Full Set
FAQ

1. What makes the Audemars Piguet Royal Oak Offshore Tourbillon Chronograph 26540ST.OO.A027CA.01 special?
Reference 26540ST.OO.A027CA.01 combines two of watchmaking's most demanding complications — a flying tourbillon and a chronograph — within a selfwinding automatic movement, making it exceptionally rare in the landscape of high-end sports watches. Housed in the iconic octagonal Royal Oak Offshore case with its signature eight-screw bezel, this watch is simultaneously a horological masterpiece and a statement of bold design. It represents one of Audemars Piguet's most technically ambitious and visually striking references.

2. What movement powers the Royal Oak Offshore Tourbillon Chronograph 26540ST?
This watch is powered by an Audemars Piguet selfwinding automatic movement that incorporates both a tourbillon regulator and a chronograph complication. The self-winding rotor means the movement winds itself through the natural motion of the wearer's wrist, a notable engineering achievement given the complexity of the mechanism. Audemars Piguet manufactures its movements in-house in Le Brassus, Switzerland, to the highest standards of Swiss haute horlogerie.

3. What is the case size of the Royal Oak Offshore Tourbillon Chronograph 26540ST.OO.A027CA.01?
The case measures 44mm in diameter, which is characteristic of the Royal Oak Offshore line and gives the watch a bold, assertive wrist presence. It is crafted in stainless steel and features a screw-down crown for added robustness. The octagonal bezel — also in stainless steel — frames the dial in the instantly recognizable Royal Oak Offshore silhouette.

4. Is the Audemars Piguet Royal Oak Offshore Tourbillon Chronograph suitable for everyday wear?
While this watch is a pinnacle collector's piece, the selfwinding movement and durable stainless steel construction make it genuinely wearable as a daily companion for those who appreciate wearing haute horlogerie. The luminous index markers ensure readability in varied lighting, and the screw-down crown adds a layer of protection to the case. That said, many collectors choose to reserve references of this rarity and value for special occasions.

5. What color is the dial on the Royal Oak Offshore Tourbillon Chronograph 26540ST?
The dial is blue, one of the most coveted and collectible dial colors in the Royal Oak Offshore family. It features index hour markers with luminous treatment for legibility, set against an open-worked layout that reveals the tourbillon movement beneath. Blue-dial Royal Oak Offshores have historically attracted strong demand among both first-time buyers and seasoned collectors.

6. How can I buy the Audemars Piguet Royal Oak Offshore Tourbillon Chronograph 26540ST.OO.A027CA.01 from Bizak & Co.?
You can purchase this certified authentic, brand-new reference directly through bizakandco.com or by contacting our team to discuss the acquisition. Bizak & Co. specializes in luxury timepieces and provides a fully authenticated buying experience with expert guidance at every step. Reach out today — references of this rarity and condition do not remain available for long.

Certified Authenticity

Every watch is authenticated before delivery.

Real Family Business

You're buying from genuine people, 30 years in business.

Bizak & Co. Warranty

Every watch is checked by us before shipping.

5 Years Warranty

Every watch you buy from us is backed by our 5-year warranty—because luxury should come with long-term peace of mind.

If anything goes wrong mechanically due to a manufacturing issue, we’ll take care of it. No stress. No surprises.

Because trust isn’t built in a transaction—it’s built over time.

90-Day Returns for Store Credit

Eligible watches may be returned within 90 days for store credit. Brand-new watches and other exclusions are final sale.

Read eligibility, condition requirements, and exclusions.

Insured delivery

Insured shipping

U.S. overnight shipping is $100; international shipping is $500. Dispatch takes 2–3 business days after your wire clears. International transit times vary. Shipping details.

You might also like...