Breguet transforms its most complicated contemporary wristwatch through celestial artistry, personalisation and anniversary-specific movement decoration!
This year marks the 225th anniversary of Abraham-Louis Breguet’s tourbillon patent, a mechanism that changed the face of watchmaking. To commemorate this momentous occasion, Breguet has introduced several timepieces featuring the complication, including the Classique Tourbillon 7357, Classique Tourbillon Sidéral 7255, and Tradition Tourbillon 7047.
While most of these models feature the tourbillon as their central highlight, Breguet introduced another that shares the limelight with some of the rarest and most complex mechanisms in horology. This latest Marine Tourbillon Équation Marchante 5887 belongs to the brand’s Marine collection and represents its most complicated contemporary wristwatch.
The Marine Tourbillon Équation Marchante 5887 brings together Breguet’s most revered complication, the tourbillon, with a perpetual calendar and running equation-of-time display. However, this is not an entirely new model, as the original Marine 5887 featured the same combination of complications. Where this 2026 edition differs is through its stunning new celestial dial, anniversary-specific movement decoration, and option of a full platinum bracelet.
Contemporary Marine Architecture In Platinum
This 225th-anniversary edition retains the existing Marine 5887 architecture, with its substantial 43.9mm case crafted from platinum. The larger diameter provides the necessary space to accommodate its numerous indications without creating an overly crowded dial. Despite its considerable width, the case measures only 11.8mm thick.
This is certainly impressive, considering that the movement contains a tourbillon, perpetual calendar functions and an equation-of-time mechanism. The case features a pocket-watch-inspired design, but the most interesting detail is the lug construction. The angular lugs give it a much sportier appearance than Breguet’s more traditional Classique models, which feature slimmer, straighter lugs that create a more refined aesthetic.
Breguet offers the Marine Tourbillon Équation Marchante 5887 with two different attachment options. First is the fully integrated platinum bracelet, which ties in beautifully with the case and presents a more luxurious side to this technical masterpiece. However, my personal choice would be the rubber strap. It gives the watch an even sportier character that aligns more closely with the Marine collection’s identity.
The rubber strap also features the textured Quai de l’Horloge pattern, referencing Breguet’s historic Parisian address and its association with Abraham-Louis Breguet. Its blue tone beautifully complements the dial while naturally breaking up the platinum case, allowing it to stand out more prominently.
The Night The Tourbillon Was Born
The highlight of this timepiece, however, is its stunning dial. This 2026 edition of the Marine 5887 features a newly developed two-part celestial display. At its centre is a sapphire section decorated underneath with translucent gradient-blue Grand Feu enamel. Across the upper surface, Breguet has applied hand-painted luminescent enamel to recreate a detailed night sky. This depicts the constellations and moon above Paris at midnight on 26 June 1801, directly connecting the dial with the date on which Abraham-Louis Breguet received the tourbillon patent.
There are nearly 450 stars within this detailed celestial image, each individually painted by hand. It is certainly a painstaking process, with every dial reportedly taking approximately one month to complete. What makes it even more special is how the historical sky transforms after dark, with its stars, constellations, and moon becoming an illuminated display through the use of luminescent enamel.
A Touch of Personal Customisation
Breguet doesn’t stop there, and we haven’t even reached the complications yet! The Maison also offers personalisation, but not through simple name engravings or different dial colours. Instead, Breguet allows each owner to replace the historical Paris sky with one carrying personal significance.
The client can choose a particular date, time and location for Breguet to reproduce on the dial, whether it represents the moment they were born, their wedding, or another significant anniversary. As far as customisation goes, this is certainly up there for being not only deeply personal, but also incredibly artistic!
Mechanical Complexity On Full Display
Surrounding the celestial chart are the watch’s various complications. First is the retrograde date display across the upper half of the dial, indicated by an anchor-tipped hand that references the timepiece’s marine heritage. Flanking the central display are two perpetual-calendar apertures, with the day shown at approximately 10:30 and the month and leap-year cycle positioned at 1:30.
Displayed in white against the rich blue background, the month appears between 1 and 2 o’clock, while the day of the week is positioned between 10 and 11 o’clock. Although it may not be immediately noticeable, the month aperture also features a leap-year indicator numbered from one to four, with the fourth year representing the leap year.
Sitting prominently at 5 o’clock is Breguet’s 60-second tourbillon, the complication at the centre of this anniversary release. It uses a lightweight titanium carriage containing a silicon balance spring and silicon escapement components, allowing it to operate at a relatively high frequency of 4Hz, or 28,800vph, while maintaining an impressive power reserve. Positioned above the tourbillon is a transparent sapphire disc carrying the equation-of-time cam. The letters around this disc represent the twelve months, while a jewel-tipped feeler tracks the mechanism’s position within its yearly cycle. This important detail leads us to the watch’s next complication: the running equation-of-time.
Following The True Path Of The Sun
The most unique indication on the Marine Tourbillon Équation Marchante 5887 is the running equation of time. This complication displays the difference between mean solar time, which provides the consistent 24-hour system used for civil timekeeping, and true solar time, which follows the Sun’s apparent position in the sky. Due to Earth’s elliptical orbit and tilted rotational axis, true solar time can run approximately 16 minutes ahead or 14 minutes behind civil time throughout the year.
Normally, this equation-of-time is displayed in its own seperate scale; however, this timepiece makes it much easier to read as it displays both times simultaneously. An ingenious solution, to say the least, the conventional minute hand displays civil time, while the true solar time is actually displayed by a faceted golden sun, which acts as the solar-minute hand. The calculation behind the true solar time works through a “controlled by a kidney-shaped equation cam mounted on a transparent sapphire disc on the tourbillon, which completes one rotation per year and works with a differential system to continually adjust the solar-minute hand.”
563 Components, Beautifully Decorated
Powering the Marine Tourbillon Équation Marchante 5887 and its numerous complications is the automatic Calibre 581DPE. The movement contains 563 components yet measures only 5mm thick, helping keep the complete watch to an impressive 11.8mm. Its performance specifications are equally remarkable. A lightweight titanium tourbillon carriage and silicon components allow the movement to operate at 4Hz, or 28,800vph, while still delivering an 80-hour power reserve. This is impressive considering the energy required to operate the tourbillon and its numerous mechanical indications.
For the anniversary edition, Breguet has retained the movement’s mechanics but completely revised its visible decoration. The bridges depict the historic Royal Louis vessel travelling across a hand-engraved maritime landscape, with details of the ship and ocean rendered in Breguet gold. This is also the first time a gold rosette has been added to the barrel drum within the Marine collection. Completing the presentation is the platinum peripheral rotor, which is hand-guilloché, engraved, and treated in blue to beautifully complement the dial.
Initial Thoughts
While this isn’t an entirely new creation, with the Marine Tourbillon Équation Marchante 5887 closely following the 2017 model and carrying the same complications, its celestial dial transforms the anniversary edition into something far more unique. Add the ability to personalise the celestial chart using a meaningful date, time, and location, and each of the 25 watches can remain part of the same anniversary story while carrying one of its own.
But for me, this is only one part of what makes this watch so incredibly special. From the ingenious running equation-of-time display, with its solar-time hand artistically following the traditional minute hand, to the beautifully constructed one-minute tourbillon and intricate artwork across the caseback, every element comes together to showcase Breguet’s technical ingenuity and artistic craftsmanship.
This is simply more than commemorating the 225th anniversary of the tourbillon patent, as the Marine Tourbillon Équation Marchante 5887 demonstrates how Breguet continues to reinterpret its history through contemporary watchmaking. The end result is a timepiece that ties in history, is mechanical extrodinary, artistically stunning, while also been deeply personal to each of the 25 owners!
Breguet Marine Tourbillon Equation Marchante 5887
Reference & Specifications
| Feature | Specification |
|---|---|
| Reference | 5887PT/YS/PW0 SL (Platinum Bracelet) or 5887PT/YS/5WVSL (Rubber Strap) |
| Dimensions | 43.9mm diameter x 11.8mm thick |
| Case | Platinum case with polished and satin-brushed surfaces, with a fluted middle case construction. |
| Dial | “Grand Feu” enamel phosphorescent-coated dial with celestial chart that can be personally customised, featuring perpetual calendar indications, one-minute tourbillon and running equation-of-time. |
| Crystal | Anti-reflective sapphire crystal |
| Caseback | Sapphire with anti-reflective coating. |
| Movement | Automatic Breguet In-house Calibre 581DPE |
| Power Reserve | 80 Days |
| Beat Rate | 4Hz (28,800 VpH) |
| Water Resistance | 100m / 10bar |
| Strap/Bracelet | 750/1000 white gold chain. |