Horology Daily

Audemars Piguet Royal Oak 15400ST.OO.1220ST.01

Movement: Automatic

Case size: 41 MM

Case material: Steel

Bracelet material: Steel

Dial type: Black Baton

Water resistance: 50 metresto the Audemars Piguet Royal Oak 15400ST.OO.1220ST.01

When it comes to luxury timepieces, Audemars Piguet is undoubtedly a brand that stands out. Known for their impeccable craftsmanship and dedication to detail, Audemars Piguet has been a leader in the watchmaking industry for over a century.

In this article, we will be focusing on one particular timepiece from their iconic Royal Oak collection: the Audemars Piguet Royal Oak 15400ST.OO.1220ST.01. This watch is a true testament to the brand’s commitment to excellence and is a must-have for any watch enthusiast.

The History of Audemars Piguet

Before we delve into the specifics of the Royal Oak 15400ST.OO.1220ST.01, let’s take a step back and explore the rich history of Audemars Piguet. The brand was founded in 1875 by Jules-Louis Audemars and Edward-Auguste Piguet, two young watchmakers from the Valle de Joux in Switzerland.

From the very beginning, they set out to create timepieces that were both innovative and elegant. Over the years, Audemars Piguet has introduced numerous groundbreaking designs and complications that have revolutionized the watchmaking industry.

In 1892, they created the first minute repeater wristwatch, followed by the world’s thinnest pocket watch in 1921. These achievements showcased the brand’s technical mastery and solidified their reputation as pioneers in the field.

It wasn’t until 1972 that Audemars Piguet truly made its mark with the introduction of the Royal Oak collection. Designed by the legendary Gerald Genta, the Royal Oak was the world’s first luxury sports watch.

Its distinctive octagonal case, inspired by a traditional diving helmet, and integrated bracelet set it apart from anything else on the market. The Audemars Piguet Royal Oak 15400ST.OO.1220ST.01

Now, let’s turn our attention to the star of this article: the Audemars Piguet Royal Oak 15400ST.OO.1220ST.01.

This timepiece is a classic example of the Royal Oak’s timeless design and exceptional craftsmanship. With its 41mm steel case and bracelet, it exudes both strength and elegance.

One of the standout features of this watch is its automatic movement. Powered by Audemars Piguet’s own caliber 3120, it ensures precise timekeeping and a power reserve of approximately 60 hours.

This movement is renowned for its durability and reliability, making it a favorite among watch enthusiasts. The dial of the Royal Oak 15400ST.OO.1220ST.01 is a sleek black with baton hour markers, which not only lend a modern and minimalist aesthetic but also ensure excellent legibility.

The luminescent coating on the hands and markers ensures that you can easily tell the time even in low-light conditions. Additionally, the date display at 3 o’clock is a convenient feature for those who like to keep track of the date as well.

In terms of water resistance, the Royal Oak 15400ST.OO.1220ST.01 can withstand depths of up to 50 meters. While it may not be suitable for deep-sea diving, this level of water resistance ensures that it can handle everyday activities such as swimming and showering without any issues.


The Audemars Piguet Royal Oak 15400ST.OO.1220ST.01 is an exceptional timepiece that exemplifies the brand’s commitment to excellence and innovation. Its sleek design, reliable movement, and impressive water resistance make it a versatile watch that can be worn in any setting.

Whether you’re a watch collector or simply appreciate fine craftsmanship, the Royal Oak 15400ST.OO.1220ST.01 is a must-have addition to any watch collection. So why wait?

Indulge in the world of Audemars Piguet and elevate your style with this remarkable timepiece.

Royal Oak Collection

When it comes to luxury watches, few collections are as iconic and influential as Audemars Piguet’s Royal Oak. Introduced in 1972, the Royal Oak collection revolutionized the watchmaking industry with its bold design and daring approach to luxury sports watches.

In this section, we will explore the different models within the Royal Oak collection and delve into the reasons behind its enduring popularity.

The Design and Craftsmanship

At the heart of the Royal Oak’s success lies its distinctive design. Designed by Gerald Genta, the Royal Oak was the world’s first luxury sports watch.

Genta drew inspiration from a traditional diving helmet, and this can be seen in the unique shape of the watch’s case. The octagonal shape, with its eight hexagonal screws securing the bezel, immediately catches the eye and gives the Royal Oak its bold and masculine appearance.

To achieve this distinctive look, Audemars Piguet had to overcome numerous technical challenges. The stainless steel used for the case and bracelet was notoriously difficult to work with, but the brand’s skilled artisans were able to master it.

The result is a watch that not only looks stunning but also showcases the brand’s commitment to craftsmanship and attention to detail. Speaking of attention to detail, one cannot overlook the Royal Oak’s famed “tapisserie” pattern.

This intricate, textured dial pattern is a signature feature of the collection, adding a touch of elegance and depth to the overall design. The meticulous craftsmanship required to create this pattern is a testament to Audemars Piguet’s artisanal expertise.

While the Royal Oak is primarily associated with stainless steel, the collection also includes models in precious metals such as gold and platinum. These variants elevate the Royal Oak’s sophistication and appeal to those who desire a touch of luxury.

Whether in stainless steel or precious metals, the Royal Oak’s design remains timeless and versatile, making it equally suitable for both formal and casual occasions. Beyond its striking exterior, the Royal Oak also boasts exceptional mechanical prowess.

Each timepiece in the collection is equipped with a mechanical movement, showcasing Audemars Piguet’s dedication to horological innovation. These movements are meticulously crafted and tested to ensure precise timekeeping and a long power reserve.

Audemars Piguet has always been at the forefront of innovation, and the Royal Oak collection is no exception. Throughout the years, the brand has introduced various complications to the collection, further enhancing its appeal to watch connoisseurs.

From the Royal Oak Chronograph with its stopwatch function to the Royal Oak Perpetual Calendar with its astronomical complications, there is a Royal Oak for every discerning collector. Moreover, Audemars Piguet continuously pushes the boundaries of design and materials.

In recent years, they have introduced models with ceramic cases and bracelets, adding a modern and robust touch to the Royal Oak. These innovative iterations showcase the brand’s commitment to blending tradition with modernity, appealing to a younger and more trend-conscious audience.

It is this combination of timeless design and exceptional craftsmanship that has made the Royal Oak collection a lasting success. It’s a testament to Audemars Piguet’s ability to create watches that transcend trends and become true symbols of luxury and style.

Whether you’re a seasoned collector or a newcomer to the world of luxury watches, the Royal Oak is undoubtedly a collection that demands attention.


In conclusion, the Audemars Piguet Royal Oak collection is an outstanding example of horological excellence. From its groundbreaking design to its impeccable craftsmanship, every aspect of the Royal Oak is a tribute to Audemars Piguet’s commitment to perfection.

Whether you’re captivated by its bold aesthetics or drawn to its technical prowess, the Royal Oak offers a timepiece that is as unique as the individual who wears it. Join the ranks of watch enthusiasts who have fallen in love with the Royal Oak and experience the unparalleled luxury and prestige that comes with owning such an iconic timepiece.

Movement and Technical Specifications

The movement of a watch is often viewed as the heart that brings it to life. In the case of the Audemars Piguet Royal Oak 15400ST.OO.1220ST.01, the movement is no exception.

This timepiece is equipped with an automatic movement, a testament to Audemars Piguet’s dedication to precision and innovation. The automatic movement in the Royal Oak 15400ST.OO.1220ST.01 is Audemars Piguet’s caliber 3120.

This in-house movement is designed and manufactured entirely by Audemars Piguet, ensuring that every aspect of the movement meets their high standards of quality. The caliber 3120 is an exceptional movement that offers several remarkable features.

Firstly, it boasts a power reserve of approximately 60 hours, providing the wearer with ample time before needing to wind the watch. This is particularly convenient for those who alternate between multiple watches or for those times when the watch is not worn consistently.

Additionally, the caliber 3120 incorporates advanced technology to enhance its accuracy. It is equipped with a balance wheel and hairspring, which work together to regulate the movement and ensure precise timekeeping.

The movement also incorporates a hacking second’s mechanism, allowing the wearer to set the time with absolute accuracy. Furthermore, the movement is adorned with exquisite finishing, showcasing Audemars Piguet’s attention to detail and craftsmanship.

The bridges and rotor are meticulously decorated with Ctes de Genve, a traditional technique that creates elegant, polished stripes across the surface of the movement. This level of finishing not only enhances the aesthetic appeal of the movement but also attests to the brand’s commitment to excellence.

The technical specifications of the Royal Oak 15400ST.OO.1220ST.01 are equally impressive. The case size measures 41mm, a well-balanced size that complements a variety of wrist sizes and ensures optimal legibility.

The case material is steel, chosen for its durability and timeless aesthetic. The use of steel allows the watch to withstand everyday wear and tear while maintaining its pristine appearance.

Complementing the steel case is the steel bracelet, providing a cohesive look that seamlessly integrates with the overall design of the watch. The bracelet material shares the same qualities as the case, ensuring longevity and comfort on the wrist.

The bracelet is also equipped with Audemars Piguet’s signature folding clasp, adding a touch of convenience and security. The dial of the Royal Oak 15400ST.OO.1220ST.01 is black and features baton hour markers.

This dial configuration not only offers a sleek and modern aesthetic but also ensures excellent legibility in various lighting conditions. The baton hour markers are filled with luminescent material, allowing the watch to maintain readability even in low-light environments.

Water resistance is an essential feature of any timepiece, and the Royal Oak 15400ST.OO.1220ST.01 does not disappoint in this aspect. It is water-resistant to a depth of 50 meters, making it suitable for everyday activities such as swimming and showering.

However, it is important to note that it is not suitable for deep-sea diving or other extreme water activities.

Complications and Features

While the Royal Oak 15400ST.OO.1220ST.01 is cherished for its simplicity and elegance, it also offers practical and functional complications to enhance its overall appeal. One of the notable features of this timepiece is the date display located at 3 o’clock.

This provides the wearer with a convenient way to track the date without sacrificing the clean and minimalist design of the dial. Furthermore, the Royal Oak collection also includes models with additional complications for those who desire more advanced features.

For example, the Royal Oak Perpetual Calendar boasts a complication that automatically adjusts for different month lengths and leap years, providing an accurate display of the date, day, month, and year. Other complications found in the Royal Oak collection include the chronograph, which allows the user to measure elapsed time with precision, and the moon phase indicator, which depicts the phase of the moon as it transitions from new moon to full moon.

Audemars Piguet continually pushes the boundaries of haute horlogerie, exploring new complications and features that captivate watch enthusiasts. Their commitment to innovation and craftsmanship ensures that each complication is seamlessly integrated into the design of the watch, creating a harmonious balance between form and function.


In conclusion, the Audemars Piguet Royal Oak 15400ST.OO.1220ST.01 is a masterclass in both movement and technical specifications. Its automatic movement, the caliber 3120, demonstrates Audemars Piguet’s dedication to precision and innovation, while the meticulous finishing highlights the brand’s craftsmanship.

The watch’s technical specifications, such as its steel case and bracelet, black baton dial, and water resistance, further enhance its appeal to both watch enthusiasts and those seeking a reliable and stylish timepiece. With additional complications available in the Royal Oak collection, Audemars Piguet offers a range of features that cater to the diverse preferences and needs of watch connoisseurs.

When and What to Wear with Audemars Piguet Royal Oak 15400ST.OO.1220ST.01

The Audemars Piguet Royal Oak 15400ST.OO.1220ST.01 is a versatile timepiece that can be worn for various occasions, from casual events to formal affairs. Its sleek design and elegant aesthetics make it a perfect accessory to elevate any outfit.

In this section, we will explore when and what to wear with this remarkable watch. For Casual Occasions:

When dressing for more relaxed or casual events, the Royal Oak 15400ST.OO.1220ST.01 is an excellent choice to add a touch of sophistication and style to your ensemble.

Its stainless steel case and bracelet lend a modern and edgy feel, making it perfect for pairing with casual attire. To create a stylish and effortless look, consider pairing the Royal Oak with a crisp white t-shirt or a fitted polo shirt.

This minimalist approach allows the watch to take center stage and adds an understated elegance to your outfit. Pair it with dark-washed jeans or chinos for a clean and polished appearance.

The versatility of the Royal Oak extends to sports-inspired outfits as well. Whether you’re heading to the gym or meeting friends for a game of tennis, this timepiece adds a touch of luxury to your athletic attire.

Its water resistance of 50 meters ensures that it can handle sweaty workouts or outdoor activities without worry. For Formal Occasions:

The Royal Oak 15400ST.OO.1220ST.01 truly shines when paired with formal wear.

Whether attending a black-tie event or a business meeting, this watch is a sophisticated and timeless choice that exudes refinement and class. When dressing formally, it is essential to choose complementary colors and materials.

Pair the Royal Oak with a well-tailored suit in a classic color such as navy, charcoal gray, or black. The stainless steel case and bracelet of the watch create a harmonious balance with the suit, enhancing its overall elegance.

To add an extra touch of sophistication, consider pairing the Royal Oak with French cuff shirts. These shirts are known for their double cuffs, which are fastened with cufflinks.

Opt for cufflinks made of precious metals or gemstones to elevate your look and create a seamless transition from the watch to the shirt. Accessories also play a crucial role in completing a formal outfit.

Consider adding a well-crafted belt and a pair of leather dress shoes in a matching color to complement the overall aesthetic. The Royal Oak’s sleek design and attention to detail will seamlessly integrate with these accessories, creating a cohesive and polished appearance.

Price and Value Proposition

As with any luxury timepiece, the Audemars Piguet Royal Oak 15400ST.OO.1220ST.01 comes with a price that reflects its exceptional craftsmanship, materials, and reputation. While the price may be an investment, it is essential to consider the value proposition that Audemars Piguet offers with this timepiece.

The Royal Oak collection is highly coveted among watch enthusiasts and collectors. Its unique design, exceptional movement, and meticulous attention to detail make it a timeless and sought-after timepiece.

The brand’s long-standing legacy and reputation for horological excellence, spanning over a century, contribute to the perceived value of its watches. Moreover, the Royal Oak is not simply a watch; it is a symbol of status and luxury.

Owning an Audemars Piguet Royal Oak is an affirmation of refined taste and appreciation for exceptional craftsmanship. The watch carries a prestige and exclusivity that few other timepieces can match, making it a statement accessory that will undoubtedly catch the eye of watch connoisseurs and enthusiasts.

In terms of the value proposition, the Royal Oak offers a combination of exquisite design, technical mastery, and lasting durability. The meticulous craftsmanship and attention to detail ensure that the watch will stand the test of time, both aesthetically and functionally.

This longevity adds to its overall value, as it can be enjoyed and cherished for years to come. Furthermore, Audemars Piguet’s commitment to innovation and traditional watchmaking techniques contributes to the value proposition of the Royal Oak.

The brand continuously seeks to push the boundaries of horology, introducing new materials, complications, and designs that captivate watch enthusiasts. This dedication to excellence ensures that each Royal Oak is a truly remarkable and unique timepiece.

In conclusion, the Audemars Piguet Royal Oak 15400ST.OO.1220ST.01 is a versatile and sophisticated watch that can be worn for both casual and formal occasions. Its sleek design and attention to detail make it a perfect accessory to elevate any outfit.

While the price may be an investment, the value proposition of owning an Audemars Piguet Royal Oak lies in its exceptional craftsmanship, lasting durability, and undeniable prestige. Indulge in the world of luxury watchmaking and experience the remarkable beauty and elegance of the Royal Oak.

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