Audemars Piguet Royal Oak Royal Oak Extra-Thin Openworked Stainless Steel / 50th Anniversary
Reference 16204ST.OO.1240ST.01
About this watch
The Audemars Piguet Royal Oak Extra-Thin Openworked is a masterpiece of horological excellence. Its unique skeleton design showcases the intricate inner workings of the watch, while its stainless steel case and sapphire crystal radiate sophistication. With a diameter of 39.00 mm and a height of just 8.10 mm, this timepiece is designed for comfort and elegance. The open case back allows wearers to admire the complexity of the movement from both sides, while the Audemars Piguet caliber AP 7124 boasts precision and a slim profile. This self-winding movement features a power reserve of 55 hours and water resistance up to 50 meters, making it suitable for various environments. The watch is equipped with a stainless steel bracelet that complements the case beautifully, ensuring a comfortable fit on the wrist. Whether you're dressing up or heading out casually, this watch adapts effortlessly to your outfit, feeling equally at home in a tuxedo as it does with jeans.
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Key Features
- Audemars Piguet caliber AP 7124 movement
- Skeletonized stainless steel case
- Sapphire crystal glass
- Water resistance up to 50 meters
- Stainless steel bracelet
- Power reserve of 55 hours
- Frequency: 28,800 vibrations per hour
Specifications
- Brand
- Audemars Piguet
- Family
- Royal Oak
- Model
- Royal Oak Extra-Thin Openworked Stainless Steel / 50th Anniversary
- Reference
- 16204ST.OO.1240ST.01
- Movement
- ap-7124
- Movement Features
-
- Hours, Minutes
- Case
- Stainless Steel 39mm
- Dial Color
- Skeleton
- Crystal
- Sapphire
- Water Resistance
- 50
Current Listings

Unworn 2025 Audemars Piguet Royal Oak 41mm Green khaki shade. 15510ST.OO.1320ST.09
This is an unworn 2025 Audemars Piguet Royal Oak in a 41mm case, featuring a green khaki shade dial.
- Condition: Unworn
- Boxes: yes, included with purchase
- Books: yes, included with purchase
- Warranty card: yes, included with purchase

Audemars Piguet Royal Oak Offshore Rubens Barrichello II 26078PO.OO.D018CR.01 Platinum.
This is a Royal Oak Offshore Rubens Barrichello II watch in platinum, known for its unique design and high-quality materials.
- Condition: Excellent
- Warranty booklets: present
- Service box: present
![[WTS] Audemars Piguet Royal Oak Offshore 42mm Blue “Beast” AP 26237ST Box and Papers](https://preview.redd.it/a46abzlzv0jf1.jpg?width=640&crop=smart&auto=webp&s=e949f71211071406ef8123c17189e1311ac81e59)
Audemars Piguet Royal Oak Offshore 42mm Blue “Beast” AP 26237ST Box and Papers
a pre-owned Audemars Piguet Royal Oak Offshore 42mm Blue "Beast" with a stainless steel case and blue dial.
- Material: stainless steel
- Case diameter: 42mm
Audemars Piguet Royal Oak Offshore Chronograph Havana All Brown Stainless Steel MINT FULL SET 26470ST
The Audemars Piguet Royal Oak Offshore Chronograph Havana All Brown features a unique cigar-brown Méga-Tapisserie dial, with rose-gold accents and subdials adding warmth and balance. The watch presents in mint condition, with a large tapisserie texture and luminous plots creating a perfect combination.
- Condition: Mint
- Case material: Stainless Steel
- Movement:
- Water resistance:
![[WTS] 2024 Audemars Piguet Royal Oak Offshore 42 Green Diver 15720ST — Pre-owned, Box and Papers](https://preview.redd.it/yvrmjutat9hf1.jpeg?auto=webp&s=98fe837ca13740dbab6e5448c8f37d74b81880cb)
2024 Audemars Piguet Royal Oak Offshore 42 Green Diver 15720ST — Pre-owned, Box and Papers
The Audemars Piguet Royal Oak Offshore 42 Green Diver is a bold and sporty timepiece built for performance and style. It features a vibrant green dial, matching rubber strap, and a robust stainless steel case with a rotating inner bezel.
- Condition: Pre-owned condition with signs of wear on bezel
- Case size: 42mm diameter
- Lug to lug length: 53.8mm
- Thickness: 14.2mm
![[WTS] 2025 Audemars Piguet Royal Oak Chronograph 26240OR — Brand New Condition With Original Box & Papers](https://preview.redd.it/nmx2uz7oixcf1.jpeg?auto=webp&s=1dd05c971989d70f740d26e5fb922668c881b417)
2025 Audemars Piguet Royal Oak Chronograph 26240OR — Brand New Condition With Original Box & Papers
The Audemars Piguet Royal Oak Chronograph 26240OR is a rose gold luxury watch featuring a black dial, gold hour markers, and a hand-stitched alligator strap. It's powered by the in-house Caliber 4401 with flyback functionality.
- Condition: Brand new
- Case size: 41mm diameter
- Lug to lug length: 51.5mm
- Thickness: 12.4mm

Audemars Piguet Royal Oak Perpetual Calendar Blue White Ceramic MINT 26579CB
This Audemars Piguet Royal Oak Perpetual Calendar features a blue Grande Tapisserie dial, perpetual calendar function, and is made from white ceramic. It includes hours, minutes, day, date, month, moon phase, leap year, and week indicator functions.
- Condition: Mint
- Case material: White ceramic
- Dial color: Blue
Audemars Piguet Royal Oak 39mm White Dial - Mint Condition with Box
This Audemars Piguet Royal Oak features a white dial, iconic octagonal bezel, and signature Tapisserie pattern, making it a true masterpiece of luxury and precision.
- Condition: Mint Condition
- Box: Yes, original box included
- Shipping: Fully insured FedEx Priority Overnight shipping to US addresses included
- Payment Methods: Wire, cryptocurrency, credit card (+4%)
NIB Audemars Piguet Royal Oak Chronograph Rose Gold Green Dial Strap 26240 Full Se
This 41mm Audemars Piguet Royal Oak Chronograph features an in-house automatic movement and a green dial on an 18K rose gold case.
- Condition: New, unworn (NIB)
- Case size: 41mm
- Movement type: Automatic, in-house