38mm Perpetual Calendar Watches Combine Comfort and Performance

Le Brassus, September 10, 2025 – To celebrate its 150th anniversary, Swiss luxury watchmaker Audemars Piguet is pleased to unveil three new, smaller perpetual calendar models within its Royal Oak and Code 11.59 collections. high quality fake watches

Following the launch of three astronomical watches earlier this year that redefined ergonomics, these latest models are the first to incorporate this poetic complication into a 38mm case. Powered by the new Caliber 7136 and the newly introduced Caliber 7138, both protected by five patents, these watches embrace Audemars Piguet's heritage while embracing the future. Available in 18k rose gold or stainless steel, their refined aesthetics highlight the precision mechanics within. Their smaller diameters open up new dimensions for traditional complications, captivating the imagination of watch enthusiasts.

A Piece of the Universe on Your Wrist

Since ancient times, the movement of celestial bodies has captivated human curiosity, shaping calendars and nautical instruments and measuring the rhythms of society. The sun dictates the rhythms of our lives, while the moon influences the tides and plays a mysterious and symbolic role in our history. A source of inspiration for poets, artists, and watchmakers, the moon stimulates our imagination, guides our introspection, and influences the energies around us.

First invented in the 18th century, the perpetual calendar is one of the most complex astronomical complications. It features a mechanical memory that tracks a 48-month cycle and automatically adjusts the number of days per month (including leap years). This highly sophisticated mechanism requires manual intervention every 100 years to align with solar time.

Rooted in history and nature, this complication has long fascinated generations of watchmakers, driving them to develop increasingly ingenious mechanisms. Grand Seiko Heritage fake

Previously limited to a 41mm case size, the perpetual calendar is now available in a 38mm size.

"At Audemars Piguet, we believe that our passion for watchmaking should be shared with as many people as possible. While complex timepieces are often perceived as more masculine, they appeal to all watch enthusiasts, regardless of age or gender. With the launch of this 38mm ergonomic perpetual calendar, we invite everyone to dream together and celebrate 150 years of Audemars Piguet craftsmanship, innovation, and a passion for fine watches." — Ilaria Resta, CEO of Audemars Piguet

Three references, elegant design

These three 38mm watches, presented in both the Audemars Piguet Code 11.59 and Royal Oak collections, combine complex watchmaking techniques, ergonomic design, and refined aesthetics. The elimination of corrector pushers on the case side enhances the watch's slenderness, elegance, and water resistance.

The new Audemars Piguet Code 11.59 watch seamlessly blends 18K rose gold with green hues. Its intricate case structure is enhanced by the alternating polished and satin-finished bevels, adding a touch of brilliance. The collection's signature soft green dial adds a further allure. The dial, crafted in collaboration with hand-engraved guilloché expert Yann Von Kaenel, features an embossed pattern punctuated by hundreds of tiny holes, creating a concentric shimmer that lends the watch a dazzling, rich, and distinctive quality. Crafted from 18k rose gold, the dial features luminescent hands and hour markers, creating an elegant contrast with the white date display. A green alligator leather strap completes the look.

The first Royal Oak watch features a stainless steel case and bracelet, with a light blue PVD Grande Tapisserie dial that complements the snailed chronograph counters. Rhodium-colored hour markers and luminescent 18k white gold hands ensure excellent legibility even in the dark. Black printed indices on the chronograph counters and polished gray bezel add a finishing touch.

The second Royal Oak watch exudes a warm and refined aesthetic, featuring an 18k rose gold case and matching bracelet, and a beige Grande Tapisserie dial. The beige snailed subdials, paired with luminescent hour markers and 18K rose gold hands, create a harmonious color palette. The blue moon phase indicator at 6 o'clock adds a touch of brilliance. Polished and satin-finished bevels on the case and bracelet—a hallmark of the brand's exquisite craftsmanship—enliven the metal on the wrist. Zenith Chronomaster Sport fake

All three watches feature sapphire crystal casebacks, showcasing the elegance of their respective movements. The 22K rose gold oscillating weight and barrel bridge, located between 12 and 3 o'clock, stand out against the other rhodium-plated movement components.

To celebrate the brand's 150th anniversary, these new models will be limited to 150 pieces and feature exquisite design details crafted specifically for this occasion. For example, the moon phase indicator at 6 o'clock features a vintage "Audemars Piguet" logo inspired by archival documents. The casebacks of these limited edition watches also feature two additional inscriptions: "150" and "1 of 150 pieces."

A Dial for Legibility and Harmony

Like the 41mm version released earlier this year, the counters have been redesigned for improved legibility, symmetry, and visual harmony. The dial now displays the date according to European convention, with the day of the week at 9 o'clock, the date at 12 o'clock, and the month at 3 o'clock. The Audemars Piguet Code 11.59 features a weekly calendar with the week number printed on the inner bezel, as in previous models. However, the first week of the year ("1") is now displayed at 12 o'clock (instead of the previous 52 weeks).

Continuing with this philosophy, "MON" (Monday) and "1" are now located at 12 o'clock, representing the start of the week and the first day of the month, respectively. The date disc at 12 o'clock utilizes a patented progressive display system and features a custom 31-tooth date wheel. Each tooth is a different size to accommodate the width of the numerals, enhancing legibility.

To ensure perfect symmetry with the month and leap year counters at 3 o'clock, a 24-hour display has been added to the day-of-the-week counter at 9 o'clock. A red no-adjustment zone appears between 9 pm and 3 am, indicating that the perpetual calendar should not be adjusted during this time. However, any adjustments performed during this time will not damage the movement.

The moon phase display, based on a realistic image of the lunar surface taken by NASA, remains at 6 o'clock, as on previous models. Now, the full moon is centered at 12 o'clock, blending seamlessly with the dial's overall design. swiss watches replica

Combining Complexity and Ergonomics

Two movements, each combining technical sophistication and ease of use, power these new models. One is Caliber 7138, which will power the 41mm perpetual calendar model launching in early 2025, and the other is the all-new Caliber 7136, which differs from its predecessor by eliminating the day-date complication. In both movements, Audemars Piguet has completely rethought the astronomical mechanism from an ergonomic perspective, adapting this complication to modern lifestyles.

Traditionally, perpetual calendar watches feature a corrector inserted into the side of the case, using a small tool to activate and adjust the various indicators. This system can make adjusting the watch cumbersome, especially if it has been unwound for extended periods. To enhance the user experience and improve the case design, Audemars Piguet engineers developed a simpler, more intuitive adjustment system controlled entirely via the crown. This innovation allows the watch functions to be easily adjusted from anywhere, without the need for tools or risk of damage.

The new crowns on Calibers 7138 and 7136 offer four different positions. The first position is for clockwise winding (position 1). Pulling the crown out once (position 2) sets the date clockwise and the month and leap year counterclockwise. Pulling the crown out again (position 3) sets the time in both directions. Pushing the crown back one click (position 2') adjusts the day and week clockwise and the moon phase counterclockwise.

This innovative system, while seemingly simple, conceals a complex mechanism. It is driven by a sliding pinion and a gear connecting the date wheels at 2 o'clock and 2 o'clock. This technology is protected by two patents: one for the crown adjustment system at 2 o'clock and the other for adjusting the month and date via the crown.

"With the 7138 and 7136 calibres, we placed ergonomics at the heart of our development, offering watch enthusiasts an easy-to-use complication fully adjustable via the crown. The launch of the 38mm perpetual calendar marks a new chapter in the world of small complications." - Lucas Raggi, Audemars Piguet's Chief Industrial Officer. Patek Philippe Aquanaut replica watches

Two styles between tradition and innovation

Building on the patented innovations of the 5133 calibre featured in the Royal Oak Automatic Perpetual Calendar Ultra-Thin RD2 launched in 2018, the 7136 and 7138 calibres integrate all perpetual calendar functions on a single level within the movement. The end-of-month cam is integrated into the date wheel, while the month cam is integrated into the month wheel. Crown adjustment is located on a second level, reducing the movement thickness to just 4.1 mm. Based on the automatic calibre 7121, the 7136 and 7138 calibres beat at a frequency of 4 Hz (28,800 vph) and boast a minimum power reserve of 55 hours.

Both new movements also feature exquisite finishes such as Côtes de Genève, satin-brushing, circular-graining, snailed finishing, and chamfering, all visible through the caseback.

Following the launch of a new generation of intuitive, easily adjustable perpetual calendars earlier this year, these three 38mm limited edition watches powered by Calibers 7136 and 7138 open the world of complications to a wider audience and are expected to become a significant source of future innovation. Bell and Ross BR 05 replica watches