Audemars Piguet Royal Oak Royal Oak Ultra Thin Tourbillon Openworked Yellow Gold / Boutique Edition

Reference 26513BA.OO.1220BA.01

About this watch

The Audemars Piguet Royal Oak Ultra Thin Tourbillon Openworked Yellow Gold / Boutique Edition is a breathtaking blend of design, engineering, and exclusivity. Crafted from 18k yellow gold, this limited-edition masterpiece boasts a skeletonized dial that allows you to peer into the heart of the watch, revealing the intricate workings of the AP 2924 SQ caliber hand-wound movement. With a power reserve of 70 hours, this timepiece is not just a statement piece but also a testament to mechanical excellence. The tourbillon escapement compensates for gravitational errors in timekeeping, elevating the entire experience. This watch strikes the perfect balance between presence and wearability, making it suitable for everyday wear with a water resistance of 50 meters. As one of only 40 units produced, owning this piece is not just about having a watch but being part of a select group of collectors who appreciate the finer things in life.

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Key Features

18k yellow gold case
Skeletonized dial with intricate movement display
AP 2924 SQ caliber hand-wound movement
Tourbillon escapement for precision timekeeping
Water resistance up to 50 meters
Limited edition of only 40 units produced
Diameter: 41.00 mm, Height: 8.85 mm

Specifications

Brand

Audemars Piguet

Family

Royal Oak

Model

Royal Oak Ultra Thin Tourbillon Openworked Yellow Gold / Boutique Edition

Reference

26513BA.OO.1220BA.01

Movement

ap-2924-sq

Movement Features

Hours, Minutes
Tourbillon Escapement, Skeleton, Power Reserve Indicator

Case

Yellow Gold 41mm

Dial Color

Skeleton

Crystal

Sapphire

Water Resistance

Current Listings

AP Royal Oak Offshore Box & Papers Great Condition 26420TI.OO.A027CA.01

Audemars Piguet - 26420TI.OO.A027CA.01 · $28,000

This is the stunning Titanium 43mm model with the blue dial and matching rubber strap — lightweight, sporty, and incredibly comfortable on the wrist.

Condition: Excellent overall
Material: Titanium
Diameter: 43mm
Case material: Titanium

Posted at

Dec 23, 2025, 2:39 PM

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2017 Audemars Piguet Royal Oak 41mm 15400OR Rose Gold White Dial - $35,800

Audemars Piguet - 15400OR.OO.D088CR.01 · $35,800

A 2017 Audemars Piguet Royal Oak 41mm in rose gold with a white dial.

Condition: Excellent overall condition
Box Papers: Yes
Warranty Papers: Dated 2017
Strap Size: Adjustable White Rubber (7.25in - 8.0in)

Posted at

Dec 23, 2025, 1:29 PM

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Audemars Piguet Royal Oak Offshore Bleu Nuit Nuage 50 26238CD.OO.1300CD.01 Complete Set

Audemars Piguet - 26238CD.OO.1300CD.01 · $129,995

The Audemars Piguet Royal Oak Offshore Bleu Nuit Nuage 50 is a brand-new 2025 release with an in-house flyback chronograph movement and a 70-hour reserve. It features a bold design, unmistakable Offshore character, and serious presence thanks to its blue ceramic build and 42 mm case.

Condition: Like new
Case Size: 42 mm
Case Thickness: 15.3 mm
Case Material: Blue ceramic with titanium caseback

Posted at

Dec 23, 2025, 8:46 AM

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1988 Seiko Quartz Chronograph “Royal Oak” Ref. 7A38-7280 | $325

Seiko - 7A38-7280 · $325

The Seiko Quartz Chronograph is a two-tone, angular watch inspired by the Royal Oak design. It features a slim and refined appearance, powered by the jewelled Seiko 7A38 quartz movement.

Condition: Good condition for its age
Case Size: 37.3 x 41.5mm stainless steel case
Thickness: 10.8mm
Movement Type: Quartz

Posted at

Dec 22, 2025, 7:08 PM

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AUDEMARS PIGUET Royal Oak 41mm Rose Gold Brown Dial Exhibition Caseback 26239OR

Audemars Piguet - 26239OR · $87,900

A stunning Royal Oak features a bold brown dial set against a 18k rose gold case and integrated bracelet. The watch is both elegant and sporty with modern flair.

Condition: Excellent condition
Case material: 18k rose gold
Bracelet type: integrated

Posted at

Dec 22, 2025, 1:46 PM

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2017 Audemars Piguet Royal Oak Offshore Diver 42mm White AP Complete Set MINT

Audemars Piguet - 15710ST.OO.A002CA.02 · $19,936

This 2017 Audemars Piguet Royal Oak Offshore Diver features a 42mm steel case, clean white dial, and sporty rubber strap, making it perfect for collectors who appreciate AP's heritage and modern character.

Condition: Excellent
Case size: 42mm diameter
Movement: automatic 3120 caliber

Posted at

Dec 21, 2025, 8:44 PM

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Audemars Piguet Royal Oak w/ Black Dial - Ref. 15500ST

Audemars Piguet - 15500ST / 15500 · $38,700

This listing is for a beautiful 41mm Audemars Piguet Royal Oak reference 15500ST with a black dial. The watch comes as a complete set and includes all necessary documents.

Condition: Great condition
Diameter: 41mm
Case material: unknown

Posted at

Dec 21, 2025, 11:54 AM

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