BREGUET – MARINE Tourbillon Equation Marchante 5887 Platinum

BREGUET – MARINE Tourbillon Équation Marchante 5887 Platinum 43.9mm Black Dial Version 2024

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 Marine Tourbillon Equation Marchante 5887
A Grand Complication in platinum armour

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The Marine Tourbillon Equation Marchante 5887, standing as the technical flagship of the Marine collection, embodies a mysterious aura and adopts a solid platinum armour to house its movement, Calibre 581DPE.

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A complication as exceptional as this is mesmerising, the Equation Marchante records the difference between local time - the time that punctuates our daily lives - and solar time - the time dictated by the earth’s rotation relative to the sun. 

Featuring a perpetual calendar and a tourbillon, this Marine piece is made in platinum, a rare and durable precious metal renowned for its remarkable resistance to corrosion and enduring brilliance.

Abraham-Louis Breguet, Watchmaker to the Royal Navy

The origins of the contemporary collection trace back to the prestigious title "Watchmaker to the French Royal Navy" awarded to Abraham-Louis Breguet, founder of the eponymous workshop in 1775, by Louis XVIII on October 27th, 1815, a year after he was appointed a member of the Board of Longitude.

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BREGUET – Marine chronometer N°3196 sold January 14, 1822 to the French Navy

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This distinguished role crowned the revolutionary advances that the master made over four decades and drew on his scientific knowledge acquired during his training with his mathematician Father Joseph-François Marie, as well as renowned watchmakers such as Ferdinand Berthoud and Jean-Antoine Lépine. 

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BREGUET simple watch with equation of time N°3862

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It enabled him to design marine chronometers, indispensable precision tools for astronomical navigation, and to calculate the position of ships in a fleet.

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Montres Breguet's rich heritage, which connects the House to the oceans and navigation, has paved the way for the Marine collection, a family of timepieces with a sporty silhouette and signature aesthetics that clearly evoke the codes of the marine world: a dial decorated with a hand guilloché "wave" motif, a crown guard with an undulating profile, a hand finished with an anchor among other distinctive features.

Marine Tourbillon Equation Marchante 5887, ambassador of Breguet expertise

This highly technical timepiece, featuring three mechanical high complications: the running equation of time, perpetual calendar, and tourbillon, - driven by the self-winding Calibre 581DPE, embodies the spirit of innovation that has characterised the brand since its inception.

Equation Marchante

This exceptional complication simultaneously displays the difference between mean solar time (calendar hours and minutes) and true solar time (used since ancient times, it can maximally deviate by up to 14 minutes late or 16 minutes early) thanks to an equation of time cam linked to a feeler to drive the equation lever.

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With the Marine 5887, reading the time is instantaneous thanks to its two minute hands: one Breguet-style with a luminescent tip for calendar time, and the other, finished with a gold plated, diamond polished and fluted ring, for solar time.

Perpetual calendar

Acting like a mechanical diary, this complication indicates the date with an anchor-shaped retrograde hand that follows an arc-shaped scale, graduated from 1 to 31, located in the upper part of the dial. The day, month and leap year are displayed in two open windows at 10.30 and 1.30. This information is detailed in white on a black background for easy legibility.

Tourbillon

Created by Abraham-Louis Breguet, patented in 1801 to counter the adverse effects of gravity on the running of mechanical movements in pocket watches, features a titanium cage and a Breguet balance-spring made in silicon at around 5 o'clock.  To enhance the functionalities of the Marine Equation Marchante 5887, a blued gauge positioned between 7 and 8.30 o’clock provides information on the level of stored energy available, which amounts to 80 hours when the watch is fully wound.

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An engraved platinum peripheral oscillating weight decorated with a "wave" motif wraps around the hand chiselled back of the calibre 581DPE depicting the silhouette of the Royal Louis, a Royal Navy warship commissioned in 1752. The barrel is decorated with a hand engraved compass rose.

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Based on the self-winding 581DR calibre, the new Marine Équation Marchante by Breguet also flaunts a third complication that is noteworthy in its own right: a 60-second tourbillon with a titanium carriage housing a Breguet balance with a silicon balance spring. 

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This innovative characteristic notably enables the balance wheel to achieve a 4Hz frequency, while maintaining a particularly comfortable power reserve for a self-winding model.  This 80-hour autonomy is displayed through an aperture between 7 and 9 o’clock. 

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Guilloché and engraving are delicate arts, executed by hand by exceptional artisans, true masters of their craft. Each pattern is patiently sculpted, each line traced with infinite precision, breathing unique, almost lifelike character into each timepiece. 

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These pieces become much more than mere timepieces: they capture the essence of time and the soul of the artisan, offering a rare luxury — that of wearing an exclusive and inimitable work of art.

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The equation of time is one of the rarest and most fascinating horological complications. It serves to display the difference between mean solar time, corresponding to civil or standard hours and minutes, and true solar time, meaning the actual solar hours and minutes. 

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Since , the sun has been used as the basis of time. Nonetheless, the visible motion of the sun – the true solar time indicated on sundials – is irregular. With the improvement of timekeeping precision, watches and clocks became the basis of time and true solar time was replaced by mean solar time, within which each day has the same duration of exactly 24 hours.

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 BREGUET – Sketches illustrating the installation of Marine chronometers aboard ships
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Mean solar time may show a discrepancy with true solar time ranging from minus 16 minutes to plus 14 minutes. On just four days a year, the two times are exactly the same. Given that the sun’s various positions in the sky are reproduced in an identical manner on the same dates, watchmakers can “program” them by means of a special cam.

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The latter is shaped like a figure 8 and mechanically reproduces the path of the sun’s successive positions, called an analemma curve. Requiring extremely accurate execution, the cam is coupled with a feeler-spindle that drives an equation lever serving to indicate the difference between civil time and solar time (-16 to +14 minutes). This read-off is generally provided on a sector or subdial. 

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 It is then up to the user to mentally add or subtract the difference displayed in relation to mean time in order to calculate true solar time. The new Marine Équation Marchante from Breguet supersedes this principle. It simultaneously indicates civil time and true time by means of two separate minutes hands. The running solar hand, adorned with a facetted golden sun, provides a direct reading of solar time minutes that is both quicker and more user-friendly.

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This apparently simplicity conceals an arduous construction process that few watchmakers are capable of achieving. The solar minutes hand has to meet two imperative demands: it must sweep in a conventional way around the dial, like the civil minutes hand, while also daily moving away from the latter by a distance that varies in accordance with the analemma curve, in order to display the equation.   

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Breguet was able to accomplish this by equipping its running solar hand with a differential gear powered by two rotation sources operating entirely independently: the rotation of civil minutes, and that controlled by the lever in contact with the equation of time cam, which makes one full turn per year. Breguet has developed an extremely slim equation cam borne by a transparent sapphire disc also serving to correct the equation of time by month.

Aesthetic poetry: the open sea under the night sky

Presented in 👉 2017, the Marine Equation Marchante 5887 initially featured a 43.9 mm diameter case available in platinum or pink gold with an ultramarine face. 

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 Three years later for the 220th anniversary of the tourbillon, the collection was expanded to include the warm reflections of pink gold combined with a chocolate-coloured dial.

This autumn, Montres Breguet completes the series by choosing the gentle strength of platinum for its fluted case. This precious grey metal is combined with the black hue for the "wave" guilloché dial, evoking the image of an ocean cradled by the silvery glow of the Moon. The complexity that the running equation of time brings to this model is naturally complemented on this “Grande Complication” by a perpetual calendar. Two apertures – one between 10 and 11 o’clock and the other between 1 and 2 o’clock – respectively display the days of the week as well as the months and the leap-year cycle. 

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The date appears inside the chapter ring by means of a retrograde hand tipped with an anchor motif and sweeping across an arc running from 9 to 3 o’clock. The dial layout of the information has been carefully designed to ensure simple and intuitive linear reading, along with impeccable visual appeal.

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At the centre of this image, four hands play a precise role: the stylised pair of Breguet hands with Super-LumiNova® filled tips indicating the hours and minutes, the hand with a golden circle indicating the solar time, and finally the hand with an anchor indicating the date. Raised blackened gold appliques Roman numerals are set on a wide circular-brushed ring, interspersed with luminescent dots and surmounted by gold hour-markers in the shape of nautical pennants.

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A truly magnificent timepiece, the new Marine Équation Marchante by Breguet sets the tone. It features new aesthetic signature codes giving it a modern and dynamic appearance: central lugs combining polished and satin-brushed surfaces; more open fluting, with visible flanks; a crown topped with a polished “B” against a sandblasted background; as well as a crown adorned with a chamfered and satin-brushed wave motif. 

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TECHNICAL SPECIFICATIONS

Collection  MARINE

Model: MARINE Tourbillon Equation Marchante 5887 Platinum

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Reference. 5887PT/92/5WV

Case
Case in 950 platinum with delicately fluted caseband. Fluted middle
Sapphire caseback single, internal anti-reflective coating
Wave-shaped crown-guard
Sapphire crystal, double anti-reflective
43.9mm diameter. 
11.8mm thickness
Water-resistant to 10bar (100m).
Dial
White gold with black finishing, hand-guilloché "wave" motif
Circular brushed silvered hour circle
Black Roman numerals in 18K gold appliqué
Pyramid hour markers in 18K gold and luminescent material
Date with retrograde hand from 9 to 3 o'clock
Applied 18K rhodium-plated gold windows, day at 10.30, month and year at 1.30
Rhodium-plated hands: Breguet tip, in 18K gold faceted, Super-LumiNova® with
blue emission colour (calendar time) - baton, gold plated ring (solar time) - straight,
ship's anchor, retrograde (date) - triangular on tourbillon (months)
Tourbillon opening at 5 o'clock, sapphire crystal

• Running solar hand with facetted golden sun.
• Days of the week in an aperture between 10 and 11 o’clock.
• Months and leap-year cycle in an aperture between 1 and 2 o’clock.
• Retrograde dates indication on an arc running from 9 to 3 o’clock.
• Power reserve in an aperture between 7 and 9 o’clock.

Movement
Self-winding movement with running equation of time, perpetual calendar, tourbillon,  

 Cal. 581DPE. 16 ½ lines, 563 components,
Numbered and signed Breguet.   

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Small seconds and equation of time cam on the tourbillon axis.
16¾ lignes. 57 jewels.
Silicon escapement wheel and inverted lateral lever with silicon horns.
Silicon balance spring.
Frequency 4Hz (28,800 vibrations per hour) Flat silicon spiral
80-hour power reserve
Hand-engraved decorative Royal Louis ship, compass rose 
Tourbillon: titanium cage Grade 5, engraved "MARINE ROYALE" bar Equation of time cam on Tourbillon axis

Indicators

• Hours, minutes in the centre
• Minutes (solar time) in the centre
• Small seconds on the tourbillon
• Date hand
• Day, month, leap year in 18K rhodium-plated applied windows
• Power reserve

Strap
Black textured rubber
Triple-blade 950 platinum folding clasp


Variations

• 950 platinum case, blue dial (ref. 5887PT/Y2/9WV)
• 18K rose gold case, brown dial (ref. 5887BR/G2/9WV)
• 18K rose gold case, silver dial (ref. 5887BR/12/9WV)

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  Available  in Breguet Boutique around the world 2024

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#breguetMARINE #MARINEROYALE
#BreguetTourbillon  

#EquationMarchante
#breguet5887
#myBreguet
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  🔴 Price upon request 💰 

🔰Edition : No 

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Press release - 2024
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