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

[WTS] Audemars Piguet Royal Oak Offshore "SAFARI" w/ 18-Month Warranty & 3 Straps

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This Audemars Piguet Royal Oak Offshore 'Safari' features a cream-colored dial with a 'Méga Tapisserie' pattern and luminous hands, powered by AP's in-house self-winding mechanical movement.

  • Condition: Excellent with minor blemish on the bezel
  • Movement type: In-house self-winding mechanical
  • Power reserve: 40 hours
  • Warranty: 18-month warranty from Horologix
Posted at
Nov 6, 2025, 11:11 AM
Active
[WTS] Audemars Piguet Royal Oak Chronograph Yellow Gold Green Dial 41mm 26331BA.OO.1220BA.02

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This stunning Royal Oak Chronograph has a yellow gold case with a rich green dial, one of only 125 pieces ever made.

  • Condition: like new
  • Movement type: Mechanical (Automatic)
  • Jewels: 37
  • Power reserve hours: 40
Posted at
Nov 6, 2025, 8:44 AM
Active
[WTS] Audemars Piguet Royal Oak Offshore 26400SO Panda Dial 44mm 2016 Full Set

Audemars Piguet Royal Oak Offshore 26400SO Panda Dial 44mm 2016 Full Set

This is an excellent example of a very wearable and versatile 44mm Offshore model with a stainless steel case, automatic chronograph movement, and 50 hour power reserve.

  • Condition: Excellent, near mint pre-owned condition
  • Case size: 44mm diameter
  • Movement: Calibre 3126/3840
  • Power reserve: 50 hour power reserve
Posted at
Nov 5, 2025, 12:57 PM
Active
[WTS] Audemars Piguet Royal Oak 15500ST Black Dial 41mm Steel 2020 Full Set

Audemars Piguet Royal Oak 15500ST Black Dial 41mm Steel 2020 Full Set

The Audemars Piguet Royal Oak 15500ST features a classic 41mm stainless steel case with a black Grande Tapisserie dial, making it suitable for various occasions.

  • Condition: Excellent pre-owned condition with very faint wear on the case, bezel, and bracelet consistent with careful use
  • Case material: stainless steel
  • Diameter: 41mm
  • Movement type: automatic
Posted at
Nov 5, 2025, 12:34 PM
Active
[WTS] 2017 Audemars Piguet Royal Oak 41 White 15400ST — Like New Condition, Inner Box & Papers

2017 Audemars Piguet Royal Oak 41 White 15400ST — Like New Condition, Inner Box & Papers

Audemars Piguet - 15400ST · $33,000
The Audemars Piguet Royal Oak 41mm White Dial 15400ST embodies the essence of modern luxury with its distinctive design and impeccable craftsmanship, featuring a signature white dial, applied hour markers, and integrated stainless steel bracelet.

  • Condition: Like new condition
  • Diameter: 41mm
  • Lug to lug length: 51mm
  • Thickness: 9.8mm
Posted at
Nov 5, 2025, 8:01 AM
Active