BREGUET – MARINE Hora Mundi 5555 Gold Edition

 

BREGUET – MARINE 5555 Hora Mundi Gold 43.9 mm Special Edition 2025

250 years of mechanical art between Sky and Sea

Breguet unveils the 5th chapter in its 250th anniversary celebrations, a brand-new version limited to 50 pieces called Marine Hora Mundi 5555. The timepiece pays tribute to craftsmanship with a dial on two superimposed levels, one guilloché and the other sapphire. This special dial is inspired by NASA’s “Black Marble”, a nocturnal vision of the Earth.

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By opting for a night view, the Hora Mundi 5555 celebrates a world in motion, where city lights remind us that the Earth never sleeps: a perfect nod to a watch designed for people traveling frequently.

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Offered for the first time in Breguet gold, this Hora Mundi 5555 also uses a new dial decorated with phosphorescent enamel, the subject of a patent application. Each of the 50 collectors will be able to personalise the cities assigned to the 24 time zones.

New frontiers: For its new Marine Hora Mundi 5555, Breguet is linking land and sea.

The Manufacture offers a new, dreamlike invitation to travel. It embraces its historical heritage, following in the footsteps of Abraham-Louis Breguet, who was appointed Watchmaker to the French Royal Navy just 210 years ago. The year was 1815, and Louis XVIII recognised the great watchmaker’s visionary talents in designing timepieces capable of pushing back the limits of science and exploration.

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Today, the oceans are no longer the impassable frontier of past centuries. This perpetual quest for new challenges also drives the Marine Hora Mundi 5555, interpreted in a very limited series of just 50 pieces. At the centre of the timepiece, a unique composition of crafts embodies the harmony between tradition and modernity, artistic expertise and technical prowess, the sea and infinite horizons.

Two superimposed dials

The new Marine Hora Mundi 5555 is based on the timepiece in the current collection: 43.9 mm case, 77F1 calibre with preprogrammable instant jump dual time zone, date, day/night indicator and synchronised city. But that’s where the comparison ends. Beyond that, everything about the Hora Mundi 5555 is new, starting with its dial.

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What sets it apart at first glance is its deep, rounded effect. This is the result of an exclusive construction. It is in fact based on two elements. On the one hand, a gold base dial, decorated with a gradation from sky blue to navy blue - the merging of the “sky and sea” a sight that inspires the creation of the timepiece.

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The base is then finely handmade guilloché with meridians and parallels. It is flat, yet offers the trompe-l’oeil of a truly curved Earth. The illusion is created by the guilloché lines representing the meridians and parallels, which converge towards the four cardinal points. This optical work provides the first component of the dial: its roundness.

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The second component is its depth. The aim is to give the illusion of a viewpoint taken from space, as if the collector were observing the Earth from the thermosphere. To achieve this, Breguet has capped the guilloché dial with a translucent sapphire crystal.

The tradition and innovation of enamel paint

This sapphire dial brings together an unparalleled array of artistic skills. It is entirely hand-painted in three phases, on both sides. First, all the continents are painted in miniature enamel. As the sapphire crystal is also flat, the contours of the continents are refined as they approach the flange, transferred by pad printing in transparent petit feu enamel. Breguet craftsmen then enamel within these lines.

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These continents are painted on the reverse side of the sapphire crystal. This is a particularly delicate exercise, since the Breguet craftsmen have to represent them in an inverted mirror so that they appear correctly once the sapphire crystal has been repositioned right side up. This layer of enamel paint is first fired at a very high temperature. 

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Secondly, the Breguet craftsmen turn the sapphire dial inside out and paint a series of clouds on the front, bringing life and realism to the composition. This cloudy layer is executed in enamel paint. It too is fired over a grand feu.

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But while the contours of the continents are immutable, the clouds fluctuate - just as they would on the surface of the Earth, floating above the continents. Here, each Breguet painter gives himself room for personal creativity. Each Hora Mundi 5555 will therefore be a unique piece, with a touch of magic and mystery floating on the surface of the oceans, according to the inspiration of each Breguet craftsman...

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Thirdly and finally, the cities that light up at night are also represented. To make them glow at night, the most common option is to use Super-LumiNova®. However, Breguet has opted for a miniature phosphorescent enamel painting. It’s a handcrafted but highly technical creation. This innovation is part of Breguet’s 250-year tradition.

Ever more unique

To underline the uniqueness of this limited series of 50, Breguet has enriched its Hora Mundi 5555 with numerous details that make it different and unique. For the first time, the Marine case is made of Breguet gold. Especially for this limited edition, its central attachment is polished. The juxtaposition of polished and satin-brushed finishes underscores the beauty of the new Breguet gold.

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The back features the double edging of the special 250th anniversary guilloché, known as Quai de l’Horloge. The sapphire crystal caseback, bearing the anniversary logo like the other models in the 250th anniversary collection, reveals the intimate workings of the calibre 77F1, whose oscillating weight is also made of Breguet gold for the first time. As for the dial, each collector of one of the 50 examples of the Hora Mundi 5555 will be able to personalise the city disc should they wish.

77F1, reference for an exceptional calibre

The heart of the Hora Mundi 5555 remains the 77F1 calibre. This robust movement has powered the Hora Mundi collection since its creation (calibre 77F0 became 77F1 in 2022). In addition to the time and date, it indicates a second time and date pair for the time zone of one’s choice, based on one of the 24 cities each representing a time zone.

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Unique to Breguet and without equivalent on the market, it is based on the principle of a mechanical memory with instantaneous display. After setting the time and date with the crown at 3 o’clock in relation to a first city, simply set the second city and its time zone with the push-button crown at 8 o’clock.

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The mechanism then calculates the time and date by means of a system of cams, hammers and an integrated differential. By simply pressing the pusher at 8 o’clock, the display switches on demand between the first and second time zones, automatically adjusting the date in both cases. An indicator at 4 o’clock specifies whether the time zone displayed is in the day or night zone.

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The calibre 77F1 is protected by several patents. One relates to a timepiece comprising a dual time-zone mechanism; the second to the display of a time zone on demand via the main pointer; the third to the programmable and reprogrammable mechanical memory wheel for a timepiece; and the last to the device for displaying a time dimension via a trailing hand. 

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TECHNICAL SPECIFICATIONS

Collection  MARINE 

Model: Breguet MARINE Hora Mundi 5555 Edition

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 Reference: 5555BH/YS/9WV

Case
    Material: 18K Breguet gold
    Diameter: 43.9 mm
    Thickness: 13.80 mm
    Fluted middle
    Anti-reflective double spherical glass
    Back glass engraved “BREGUET 250 YEARS”, single anti-reflective
    Back bezel hand-guilloché with Quai de l’Horloge motif
    Numbered timepieces with hand-engraved number (N° XX/50) on the back bezel
    Gold weight: 110.2 g (Estimate)
    Water-resistant to 10 bar (~100 meters)
Dial 
    Engine-turned 18K gold (latitudes and longitudes), blue gradation
    Continents hand-painted in grand feu enamel, with city dots in phosphorescent enamel (blue emission colour)
    Hand-painted clouds in grand feu enamel
    Roman numerals in blued gold with light grey SLN (blue emission colour)
    Breguet gold-coloured hour markers on flange with light grey SLN (blue emission colour)
    Breguet apple-shaped hour and minute hands in 18K Breguet gold with light grey SLN (blue emission colour)
    Breguet gold seconds hand
    Day/night indicator in Breguet gold representing a sun (sunburst finish) and a halfmoon (hand-hammered rhodium-plated finish)
    Anchor at 6 o’clock in Breguet gold
Movement
    Calibre 77F1, numbered and signed Breguet
    Self-winding movement
    18K Breguet gold oscillating weight inspired by a boat helm
    Diameter: 36 mm, 16 lines
    Thickness: 6.13 mm
    Number of parts: 384
    Number of jewels: 40
    Frequency 4 Hz (28,800 vibrations per hour)
    Flat silicon balance spring
    Power reserve of 55 hours
Functions/Indications
    Hours, minutes, seconds
    Date, second time zone (24 cities)
    Day/night indication
Strap
    Navy blue alligator leather, large scales, lined with navy blue alligator leather, small scales
    18K Breguet gold 3-blade folding clasp
    Extra rubber strap included
    Box:Special Edition 250th in red leather, individually numbered, inspired by the red Breguet Moroccan leather cases of the period

🔰 Limited edition  50 pieces, numbered and engraved from 1/50 to 50/50 on the back bezel

Gold Weight Breguet   110.2 g (Estimate)

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BOX
Special Edition 250th presentation case in red leather, individually numbered, inspired by Breguet’s Moroccan leather cases of the period.

Warranty   5-Year International Sales Warranty

Available  in Breguet Boutique around the world

🔰 Limited Edition ✅ 50 pieces 

🔴 Price: Upon Request CHF 88,000 💰

#Breguet
#BreguetTradition
#MetiersdArts #MARINE  
#Breguet5555 #Ref5555
#myBreguet #MarineHoraMundi 
#myBreguetmoment

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Press release - 2025
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