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

Audemars Piguet Royal Oak Offshore 'Dark Knight' 26470SO.OO.A002CA.01 - Ceramic Bezel Masterpiece

Audemars Piguet - 26470SO.OO.A002CA.01 · $26,599

The Audemars Piguet Royal Oak Offshore 'Dark Knight' is an iconic timepiece with a ceramic bezel, blending luxury and performance.

Condition: Excellent condition
Box: Outer and inner box
Warranty card: true
Shipping: FedEx overnight with full insurance to an authenticator or a hold-at-location FedEx

Posted at

Mar 23, 2026, 1:53 PM

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Audemars Piguet Royal Oak 15000ST 33mm Automatic

Audemars Piguet - 15000ST · $27,950

This 33mm Audemars Piguet Royal Oak features a deep blue tapisserie dial and an integrated bracelet case. The watch is powered by the AP calibre 2240 movement and has a water resistance of 50m.

Condition: pre owned, great condition
Case size: 33mm diameter
Water resistance: 50m depth rating
Movement: AP calibre 2140 (upgraded to 2240 in 2025)

Posted at

Mar 22, 2026, 9:26 PM

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1995 Audemars Piguet Royal Oak 120th Anniversary LE ref. 56975ST w/ Box & Extract

Audemars Piguet - 56975ST · $22,300

This 1995 Audemars Piguet Royal Oak 120th Anniversary LE features a stainless steel case with a blue dial and is powered by an AP 2712 quartz movement.

Condition: Minimal wear, excellent condition overall
Case material: Stainless steel
Diameter: 33mm diameter
Lug width: 23.5mm

Posted at

Mar 22, 2026, 4:20 PM

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Audemars Piguet Royal Oak Offshore Chronograph 42mm Rose Gold "Full Brick" 26470OR.OO.1000OR.02

Audemars Piguet - 26470OR.OO.1000OR.02 · $63,500

This Audemars Piguet Royal Oak Offshore Chronograph is a 42mm rose gold timepiece featuring a chronograph function.

Condition: Very good, rated at 9.8/10
Case size: 42mm
Water resistance: 50m

Posted at

Mar 20, 2026, 10:32 AM

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Audemars Piguet Royal Oak Offshore Chronograph 42mm Rose Gold "Full Brick" 26470OR.OO.1000OR.02

Audemars Piguet - 26470OR.OO.1000OR.02

Case material: Rose Gold
Size: 42mm diameter
Watch type: Chronograph

Posted at

Mar 20, 2026, 10:31 AM

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Audemars Piguet Royal Oak Tourbillon Chronograph 44mm 26377SK.OO.D002CA.01 Complete Set

Audemars Piguet - 26377SK.OO.D002CA.01 · $114,195

This 44mm Royal Oak Tourbillon Chronograph features a clean black dial with an exposed tourbillon and rubber-clad bezel, providing a unique industrial contrast.

Condition: Excellent condition with little to no signs of wear
Movement: Mechanical (Manual)
Caliber: 2889
Jewels: 28

Posted at

Mar 20, 2026, 8:57 AM

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2022 Audemars Piguet Royal Oak Offshore Chrono "Smoked Tan" - 26420SO.OO.A600CA.01 - Full Set 2 AP Straps, Extended Warranty

Audemars Piguet - 26420SO.OO.A600CA.01 · $34,000

A beautifully designed 43mm Royal Oak Offshore Chronograph by Audemars Piguet, featuring a stainless steel case with black ceramic details and a smoked tan fume dial.

Condition: Very excellent preowned condition
Case Size: 43mm
Case Material: Stainless steel and Black Ceramic
Movement: Audemars Piguet Caliber 4401 (automatic flyback chronograph)

Posted at

Mar 19, 2026, 7:05 PM

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AUDEMARS PIGUET Royal Oak Rose Gold Blue Dial Chronograph 26331OR.OO.D315CR.01

Audemars Piguet - 26331OR.OO.D315CR.01 · $56,900

The AUDEMARS PIGUET Royal Oak Rose Gold Blue Dial Chronograph is a sought-after Royal Oak chronograph with a 41mm size, rose gold bezel, and deep blue Grande Tapisserie dial. It's a favorite among collectors for its statement piece wearability while still being suitable for everyday use.

Condition: Excellent
Case material: 18k rose gold
Diameter: 41mm
Strap material: blue leather

Posted at

Mar 19, 2026, 11:54 AM

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