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 - $14,750

Audemars Piguet - Royal Oak Offshore · $14,750

This is a white dial Audemars Piguet Royal Oak Offshore for sale. The watch has very few marks, which take away from its excellent condition.

Condition: Very Good
Payment Methods: crypto, Zelle, Venmo

Posted at

Feb 7, 2026, 4:44 PM

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Vintage Seiko Sports 150 – Alarm Chronograph – 😏 “Poor Man’s AP Royal Oak” 😏 – 7T34-7A10 – $245 Shipped

Seiko - 7T34-7A10 · $245

This vintage Seiko Sports 150 is a quartz-powered chronograph watch with date display, alarm functions, and an approximately 44mm case. It comes on its original bracelet and features clear signs of wear adding to its vintage character.

Condition: Poor condition with signs of wear and fading
Case size: approximately 44mm
Bracelet size range: fits wrists up to 8 inches

Posted at

Feb 7, 2026, 3:14 AM

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Audemars Piguet Royal Oak Offshore Selfwinding Chronograph Ceramic Rose Gold Grey Dial 44mm Box & Papers 26405NR.OO.A002CA.01

Audemars Piguet - 26405NR.OO.A002CA.01 · $47,495

This 44mm rose gold and black ceramic Audemars Piguet Royal Oak Offshore Selfwinding Chronograph features a smoked grey dial, mechanical movement, and is water resistant up to 100M.

Condition: Like new
Case Size: 44mm diameter
Movement Caliber: 3126/3840
Power Reserve: 50 hours

Posted at

Feb 6, 2026, 8:22 AM

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Audemars Piguet Royal Oak w/ White Dial - Ref. 15400ST

Audemars Piguet - 15400ST / 15400 · $30,000

This beautiful Audemars Piguet Royal Oak reference 15400ST/15400 features a white dial and is in great condition, keeping accurate time.

Condition: Great
Serial number: I
Authenticity guarantee: 100%
Shipping location: US only

Posted at

Feb 5, 2026, 10:16 AM

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2024 Audemars Piguet Royal Oak Chronograph 26240CE — Brand New Condition, Box & Papers

Audemars Piguet - 26240CE · $115,000

The Audemars Piguet Royal Oak Chronograph showcases the iconic Royal Oak design in full black ceramic, featuring a Grande Tapisserie dial and in-house flyback chronograph movement.

Condition: Brand new condition
Case size: 41mm diameter
Dimensions: 51.4mm lug to lug, 12.4mm thick
Included accessories: original box, papers, and accessories

Posted at

Feb 4, 2026, 8:05 AM

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

Audemars Piguet - 56975ST · $23,300

A 1995 Audemars Piguet Royal Oak 120th Anniversary LE with a stainless steel case and blue dial.

Condition: Excellent, minimal wear
Case material: Stainless steel
Diameter: 33mm
Lug width: 23.5mm

Posted at

Feb 1, 2026, 5:51 PM

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AP Royal Oak Offshore Diver 15706AU – Forged Carbon – 42mm – Watch Only – Good Condition – 18,800 Shipped – Trades Welcome

Audemars Piguet - 15706AU · $18,800

The Audemars Piguet Royal Oak Offshore Diver Ref. 15706AU is a forged-carbon diver that stands out as one of the most distinctive and collectible ROO variants ever made.

Condition: good condition overall with light carbon wear
Case size: 42mm
Material: forged carbon case
Bezel material: black ceramic bezel

Posted at

Feb 1, 2026, 2:03 PM

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Audemars Piguet Royal Oak Offshore Diver 15710ST Box and Papers

Audemars Piguet - 15710ST.OO.A002CA.02 · $17,500

The Audemars Piguet Royal Oak Offshore Diver is a fully capable professional dive watch with a 42mm stainless steel case and a crisp white dial. It features a silver-toned rotating inner bezel with a diving scale and is powered by the in-house caliber 3120 self-winding movement with a 60-hour power reserve.

Condition: Excellent
Case size: 42mm
Case thickness: 14.1mm
Water resistance: 300m

Posted at

Jan 30, 2026, 2:13 PM

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