Audemars Piguet Royal Oak Royal Oak Extra-Thin Openworked Stainless Steel / 50th Anniversary

Reference 16204ST.OO.1240ST.01

Audemars Piguet Royal Oak Extra-Thin Openworked Stainless Steel / 50th Anniversary

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

Current Listings

Audemars Piguet Royal Oak Offshore Chronograph “Half Brick” | Rhodium Dial Ref. 26470OR.OO.A125CR.01 | w/ Box & Papers | $35500

Audemars Piguet - 26470OR.OO.A125CR.01 · $35,500

The seller is listing an Audemars Piguet Royal Oak Offshore Chronograph with a rhodium dial, also known as the 'Half Brick' model.

Box & papers: true

Posted at

May 26, 2026, 9:24 PM

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Audemars Piguet Royal Oak 41mm 15500st.oo.1220st.01 Blue LNIB

Audemars Piguet - 15500st.oo.1220st.01 · $46,900

A 41mm Audemars Piguet Royal Oak with a blue dial, available in like new condition as shown in the pictures.

Condition: Like New, In the Box (LNIB)
Size: 41mm diameter
Water Resistance: 30m depth rating

Posted at

May 26, 2026, 5:26 PM

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Audemars Piguet Royal Oak Offshore The Legacy Arnold 26378IO.OO.A001KE.01 FULL SET

Audemars Piguet - 26378IO.OO.A001KE.01 · $26,800

The Royal Oak Offshore The Legacy Arnold is a ceramic and titanium watch with a black dial, featuring an automatic movement with a 50hr power reserve.

Condition: Excellent
Case material: titanium and ceramic
Bezel material: black ceramic

Posted at

May 26, 2026, 1:29 PM

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Audemars Piguet Royal Oak Perpetual Calendar 26574OR.OO.1220OR.02 ♦️Like New 2019♦️

Audemars Piguet - 26574OR.OO.1220OR.02 · $151,400

A Royal Oak Perpetual Calendar from Audemars Piguet, a luxury watch brand known for its high-end timepieces.

Condition: Like New
Year: 2019
Box And Papers: Comes with Full Set (Box & Papers)
Country Of Origin: Singapore

Posted at

May 25, 2026, 4:15 AM

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Audemars Piguet Royal Oak Chronograph Blue Dial 26320ST

Audemars Piguet - Royal Oak Chronograph Blue Dial 26320ST · $45,000

This Audemars Piguet Royal Oak Chronograph features a blue tapisserie dial and chronograph function. The watch is powered by an automatic Caliber 2385 movement with a 40 power reserve.

Condition: Very Good (VG), minor signs of use on the case, minor patina/discoloration around the subdials
Case dimensions: 41mm x 11mm
Lug to lug length: 52mm
Movement caliber: 2385

Posted at

May 24, 2026, 2:11 PM

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Audemars Piguet Royal Oak Offshore Bleu Nuit Nuage 50 26420SO.OO.A029VE.01 Complete Set

Audemars Piguet - 26420SO.OO.A029VE.01 · $48,995

The Audemars Piguet Royal Oak Offshore Bleu Nuit Nuage 50 has a bold and powerful design, with a midnight blue ceramic case and a dial that shimmers like a stormy ocean. The watch is perfect for formal events or everyday wear.

Condition: Brand new
Case size: 43mm
Case thickness: 14.4mm
Movement caliber: 4401

Posted at

May 23, 2026, 7:09 AM

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Audemars Piguet Royal Oak Offshore Bleu Nuit Nuage 50 Beige Dial 43mm 26420CD.OO.A029VE.01

Audemars Piguet - 26420CD.OO.A029VE.01 · $86,995

The Bleu Nuit Nuage 50 edition of the Audemars Piguet Royal Oak Offshore features a beige dial with blue sub-dials and a matching blue ceramic bezel, powered by the integrated Calibre 4401 movement.

Condition: Brand new
Case size: 43 mm
Movement caliber: Calibre 4401
Power reserve: 70 hours

Posted at

May 23, 2026, 6:32 AM

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Audemars Piguet Royal Oak Offshore Diver Stainless Steel Grey Dial 42mm 15720ST.OO.A009CA.01

Audemars Piguet - 15720ST.OO.A009CA.01 · $25,395

The Audemars Piguet Royal Oak Offshore Diver is a rugged evolution of the Royal Oak DNA, built for 300m depth without breaking a sweat. It features a grey 'Méga Tapisserie' dial that works as both a tool watch and a daily driver.

Condition: Excellent
Case size: 42mm
Case thickness: 14.2mm
Water resistance: 300m (30 ATM)

Posted at

May 23, 2026, 6:31 AM

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