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

2012 Audemars Piguet Royal Oak Offshore 26400AU.OO.A002CA.01

Audemars Piguet - 26400AU.OO.A002CA.01

Posted at

May 11, 2026, 10:19 PM

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Audemars Piguet Royal Oak Offshore Limited Edition 26290RO.OO.A001VE.01 ♦️Lightly Used 2010♦️

Audemars Piguet - 26290RO.OO.A001VE.01 · $36,200

This Audemars Piguet Royal Oak Offshore Limited Edition is a lightly used model from Q4 2010, featuring the Calibre 65 movement and coming with its full set of box and papers.

Condition: Lightly Used
Year: 2010
Case size: 40mm diameter
Calibre: Calibre 65

Posted at

May 11, 2026, 4:49 AM

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Audermars Piguet Royal Oak Offshore “Safari” 26170ST.OO.D091CR.01 42mm Stainless Steel Full Set w/ Both Straps

Audemars Piguet - 26170ST.OO.D091CR.01 · $19,850

A highly collectible 'Safari' edition from the Royal Oak Offshore line, featuring a rugged stainless steel case and a warm ivory dial.

Condition: Excellent Pre-owned condition
Case size: 42mm diameter
Year of production: 2008
Movement: AP's In-House Calibre 3120 Automatic Self Winding Chronograph

Posted at

May 11, 2026, 12:06 AM

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Audemars Piguet Royal Oak Chronograph Blue Dial 26320ST

Audemars Piguet - 26320ST · $45,000

This is a blue dial Royal Oak Chronograph with a 41mm x 11mm case and a 52mm lug to lug. It features an automatic movement, chronograph function, date window with quickset, sapphire crystal, and 50M water resistance.

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: 52mm
Movement: Caliber 2385 automatic movement, 40 power reserve

Posted at

May 9, 2026, 3:03 PM

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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

This watch features a beige dial with blue sub-dials and ceramic bezel, set against the bold Offshore silhouette.

Condition: Brand new
Case size: 43mm
Dial color: beige
Movement caliber: Calibre 4401

Posted at

May 9, 2026, 8:18 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 of depth without breaking a sweat. It features a grey 'Méga Tapisserie' dial and an in-house Calibre 4308 visible through the sapphire caseback.

Condition: Excellent
Case size: 42mm diameter
Water resistance: 300m (30 ATM)
Movement caliber: 4308

Posted at

May 9, 2026, 8:17 AM

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