{"lien_WSTV":"","tax_name":"deprecated","tax_rate":20,"id_manufacturer":"0","id_supplier":"0","id_category_default":"481","id_shop_default":"1","manufacturer_name":false,"supplier_name":false,"name":"Marine Equation Marchante 5887","description":"<h3><strong>BASELWORLD 2017: BREGUET AT THE WORLD WATCH <\/strong><strong>AND JEWELLERY SHOW<\/strong><\/h3>\n<p>Creativity, innovation and impeccable aesthetics are once again the\u00a0keynotes of the prestigious models unveiled by Breguet at\u00a0Baselworld. Loyal to its history, the House honours its founder\u2019s\u00a0broad range of competencies that proved of ample benefit to\u00a0watchmaking as well as to navigation and astronomy. Elected a\u00a0member of the Bureau des longitudes in Paris, and then chronometer\u00a0maker to the French Royal Navy and a member of the French\u00a0Academy of Science, A.-L. Breguet conceptualised and developed\u00a0in the course of his career a wealth of spectacular timepieces\u00a0including astronomical clocks and marine chronometers. Breguet\u00a0and its President & CEO, Marc A. Hayek are now reinterpreting his\u00a0unique heritage. The result is a horological marvel extending an\u00a0open invitation to travel and discovery, in which sophisticated\u00a0horological complications rub shoulders with stunning finishing.\u00a0The flagship model of 2017, this new release redefines and takes the\u00a0helm of the line it is joining. Breguet offers devotees of Haute\u00a0Horlogerie an opportunity to discover the fundamentals of this\u00a0exceptional model through a surprising exhibit combining visual\u00a0panels and explanations, scale models and interactive modules.\u00a0Unveiled on Saturday March 25th in a preview showing on the\u00a0Swatch Group Plaza that will continue until Sunday 26th, this\u00a0travelling exhibition will then make stopovers in major cities across\u00a0Europe, Asia and the United States.<\/p>\n<p>In parallel with this exclusive launch, Breguet continues to\u00a0encourage women\u2019s interest in mechanical watchmaking. The\u00a0Manufacture is enriching its ladies\u2019 collection with exquisite\u00a02017\u00a0variations featuring a stunning array of gems, mother-of-pearl and\u00a0other precious materials, crafted in the purest artisan-style tradition.<\/p>\n<p><strong>BREGUET MARINE EQUATION MARCHANTE 5887<\/strong><\/p>\n<p>Throughout his career, A.-L. Breguet consistently demonstrated\u00a0his exceptional mastery of time measurement. His strong\u00a0involvement and his revolutionary developments earned him\u00a0significant recognition and numerous honours. Renowned the\u00a0length and breadth of Europe, Breguet found a particularly active\u00a0admirer in Louis XVIII, king of France. In 1814, the latter\u00a0appointed him a member of the Bureau des longitudes in Paris. This\u00a0body created in 1795 by the National Convention was dedicated\u00a0to the advancement of the various branches of astronomy and\u00a0their applications to geography, navigation and geodesy (the\u00a0measurement and understanding of Earth\u2019s physical properties).\u00a0Its tasks included the annual publication of reference documents\u00a0such as astronomical ephemerides. The Bureau des longitudes was a\u00a0prestigious organisation whose 20 or so members included\u00a0geometers, astronomers, seafarers and associate artists. The only\u00a0representative of his profession that was eminently useful to\u00a0physicists and navigators, Breguet became the horological\u00a0authority, notably for the calculation of longitudes at sea. As an\u00a0extension of this distinction, through an ordinance issued on\u00a0October 27th 1815, Louis XVIII awarded A.-L. Breguet the\u00a0official title of chronometer maker to the French Royal Navy.<\/p>\n<p>This was the most prestigious title a horologist could hope to\u00a0receive, given that the very concept of marine chronometry\u00a0implied scientific knowledge. It also involved playing a crucial\u00a0role for the country, as marine chronometers were of capital\u00a0importance for fleets by making it possible to calculate ships\u2019\u00a0positions at sea.<\/p>\n<p>Following in the wake of this unique heritage, the House of\u00a0Breguet now launches a worldwide exclusive model named the\u00a0Marine \u00c9quation Marchante 5887. This \u201cGrande Complication\u201d\u00a0marks the start of a new era for the contemporary Marine\u00a0collection.<\/p>\n<p>The equation of time is one of the rarest and most fascinating\u00a0horological complications. It serves to display the difference\u00a0between mean solar time, corresponding to civil or standard\u00a0hours and minutes, and true solar time, meaning the actual solar\u00a0hours and minutes.<\/p>\n<p>Since Antiquity, the sun has been used as the basis of time.\u00a0Nonetheless, the visible motion of the sun \u2013 the true solar time\u00a0indicated on sundials \u2013 is irregular. With the improvement of\u00a0timekeeping precision, watches and clocks became the basis of\u00a0time and true solar time was replaced by mean solar time, within\u00a0which each day has the same duration of exactly 24 hours. Mean\u00a0solar time may show a discrepancy with true solar time ranging\u00a0from minus 16 minutes to plus 14 minutes. On just four days a\u00a0year, the two times are exactly the same. Given that the sun\u2019s\u00a0various positions in the sky are reproduced in an identical\u00a0manner on the same dates, watchmakers can \u201cprogram\u201d them by\u00a0means of a special cam. The latter is shaped like a figure 8 and\u00a0mechanically reproduces the path of the sun\u2019s successive\u00a0positions, called an analemma curve. Requiring extremely\u00a0accurate execution, the cam is coupled with a feeler-spindle that\u00a0drives an equation lever serving to indicate the difference\u00a0between civil time and solar time (-16 to +14 minutes). This readoff\u00a0is generally provided on a sector or subdial. It is then up to\u00a0the user to mentally add or subtract the difference displayed in\u00a0relation to mean time in order to calculate true solar time. The\u00a0new Marine \u00c9quation Marchante from Breguet supersedes this\u00a0principle. It simultaneously indicates civil time and true time by\u00a0means of two separate minutes hands. The running solar hand,\u00a0adorned with a facetted golden sun, provides a direct reading of\u00a0solar time minutes that is both quicker and more user-friendly.\u00a0This apparently simplicity conceals an arduous construction\u00a0process that few watchmakers are capable of achieving. The solar\u00a0minutes hand has to meet two imperative demands: it must\u00a0sweep in a conventional way around the dial, like the civil\u00a0minutes hand, while also daily moving away from the latter by a\u00a0distance that varies in accordance with the analemma curve, in\u00a0order to display the equation. Breguet was able to accomplish\u00a0this by equipping its running solar hand with a differential gear\u00a0powered by two rotation sources operating entirely\u00a0independently: the rotation of civil minutes, and that controlled\u00a0by the lever in contact with the equation of time cam, which\u00a0makes one full turn per year. Breguet has developed an extremely\u00a0slim equation cam borne by a transparent sapphire disc also\u00a0serving to correct the equation of time by month.<\/p>\n<p>The complexity that the running equation of time brings to this\u00a0model is naturally complemented on this \u201cGrande\u00a0Complication\u201d by a perpetual calendar. Two apertures \u2013 one\u00a0between 10 and 11 o\u2019clock and the other between 1 and 2 o\u2019clock\u00a0\u2013 respectively display the days of the week as well as the months\u00a0and the leap-year cycle. The date appears inside the chapter ring\u00a0by means of a retrograde hand tipped with an anchor motif and\u00a0sweeping across an arc running from 9 to 3 o\u2019clock. The dial\u00a0layout of the information has been carefully designed to ensure\u00a0simple and intuitive linear reading, along with impeccable visual\u00a0appeal.<\/p>\n<p>Based on the self-winding 581DR calibre, the new Marine\u00a0\u00c9quation Marchante by Breguet also flaunts a third complication\u00a0that is noteworthy in its own right: a 60-second tourbillon with a\u00a0titanium carriage housing a Breguet balance with a silicon balance\u00a0spring. This innovative characteristic notably enables the balance\u00a0wheel to achieve a 4Hz frequency, while maintaining a\u00a0particularly comfortable power reserve for a self-winding model.\u00a0This 80-hour autonomy is displayed through an aperture\u00a0between 7 and 9 o\u2019clock.<\/p>\n<p>The ingenuity of this spectacular model is accentuated by the\u00a0precious expertise of the artisans exercising their skills within the\u00a0House of Breguet. The front dial features two types of engineturning,\u00a0including a \u201cwave\u201d pattern specifically developed for\u00a0this new creation. The inscription \u201cMarine royale\u201d is engraved\u00a0on the tourbillon bar, whose execution naturally draws the gaze.\u00a0Visible through a sapphire caseback, the bridges have been\u00a0delicately chased to depict in meticulous detail the Royal Louis, a\u00a0first rank vessel in the French Royal Navy. The barrel is adorned\u00a0with a windrose motif, in reference to astronomical navigation.\u00a0Thanks to the carefully chosen positioning of the oscillating\u00a0weight on the rim of the calibre, the self-winding movement\u00a0deploys the full splendour of its decoration.<\/p>\n<p>A truly magnificent timepiece, the new Marine \u00c9quation\u00a0Marchante by Breguet sets the tone. It features new aesthetic\u00a0signature codes giving it a modern and dynamic appearance:\u00a0central lugs combining polished and satin-brushed surfaces;\u00a0more open fluting, with visible flanks; a crown topped with a\u00a0polished \u201cB\u201d against a sandblasted background; as well as a\u00a0crown adorned with a chamfered and satin-brushed wave motif.\u00a0This \u201cGrande Complication\u201d comes with a 43.9mm-diameter\u00a0case in rose gold or platinum. The rose gold version frames a\u00a0silvered dial and an anthracite movement, while the platinum\u00a0interpretation has a blue dial and a rhodium-plated movement.\u00a0Elegance, legibility and aesthetic balance are the keynote features\u00a0of these two equally sumptuous models.<\/p>\n<p><\/p>","description_short":"","quantity":0,"minimal_quantity":"0","available_now":"","available_later":"","price":215166.6666,"specificPrice":false,"additional_shipping_cost":"0.00","wholesale_price":"0.000000","on_sale":"0","online_only":"0","unity":"","unit_price":0,"unit_price_ratio":"0.000000","ecotax":"0.000000","reference":"5887PT\/Y2\/9WV ","supplier_reference":"","location":"","width":"0.000000","height":"0.000000","depth":"0.000000","weight":"0.000000","ean13":"","upc":"","link_rewrite":"breguet-marine-equation-marchante-5887","meta_description":"BASELWORLD 2017: BREGUET AT THE WORLD WATCH AND JEWELLERY SHOW Creativity, innovation and impeccable aesthetics are once again the\u00a0keynotes of the prestigiou...","meta_keywords":"","meta_title":"Watch Breguet Marine Equation Marchante 5887 | Marine 5887PT\/Y2\/9WV Platinum - Alligator Strap","quantity_discount":"0","customizable":"0","new":false,"uploadable_files":"0","text_fields":"0","active":"1","redirect_type":"404","id_product_redirected":"0","available_for_order":"0","available_date":"0000-00-00","condition":"new","show_price":"1","indexed":"1","visibility":"both","date_add":"2017-06-21 09:54:50","date_upd":"2023-02-07 15:03:16","tags":false,"base_price":"215166.666600","id_tax_rules_group":"1","id_color_default":0,"advanced_stock_management":"0","out_of_stock":2,"depends_on_stock":false,"isFullyLoaded":true,"cache_is_pack":"0","cache_has_attachments":"1","is_virtual":"0","id_pack_product_attribute":null,"cache_default_attribute":"0","category":"marine","pack_stock_type":"0","id":6173,"id_shop_list":null,"force_id":false,"customization_required":false}
{"Compl\u00e9ment":"Platinum - Alligator Strap","Statut de vente":"En vente depuis","Date":"2017","Sexe":"Homme","Diam\u00e8tre":"43.9","Types":"Self-winding","Styles":"High Horology","Calibre_autre":"581DPE","Affichage_autre":"Breguet hands","Complication":"Perpetual Calendar , Small Seconds, Tourbillon","Mati\u00e8re du bo\u00eetier":"Platinum","Particularit\u00e9 du boitier":"Sapphire caseback","Particularit\u00e9 du boitier_autre":"Fluted caseband","Etanch\u00e9it\u00e9":"100 meters","Forme":"Round","Cadran":"Gold, Hand engraved","Couleur du cadran":"Blue","Index":"Luminescent, Markers, Roman numerals","Mati\u00e8re du bracelet":"Alligator leather","Fermeture du bracelet":"Folding buckle ","Couleur du bracelet":"Dark blue","Plus de caract\u00e9ristiques":"<br\/>Movement<br\/>\r\nSelf-winding movement with running equation of time, perpetual calendar, tourbillon and 80-hour power\r\nreserve<br\/>\r\nNumbered and signed Breguet<br\/>\r\nSmall seconds and equation of time cam on the tourbillon axis<br\/>\r\n16\u00be lignes<br\/>\r\n 57 jewels<br\/>\r\nSilicon escapement wheel and inverted lateral lever with silicon horns<br\/>\r\nSilicon balance spring<br\/>\r\nBalance frequency 4Hz<br\/>\r\nAdjusted in 6 positions<br\/>\r\n\r\n<br\/>Case <br\/>\r\n950 platinum with delicately fluted caseband<br\/>\r\n\r\n<br\/>Dial<br\/>\r\nIndividually numbered and signed Breguet<br\/>\r\nBreguet facetted hands in 18k gold with luminescent material<br\/>\r\nRunning solar hand with facetted golden sun<br\/>\r\nDays of the week in an aperture between 10 and 11 o\u2019clock<br\/>\r\nMonths and leapyear cycle in an aperture between 1 and 2 o\u2019clock<br\/>\r\nRetrograde dates indication on an arc running from 9 to 3 o\u2019clock<br\/>\r\nPower reserve in an aperture between 7 and 9 o\u2019clock<br\/>\r\n\r\n<br\/>Strap \/ Buckle <br\/>\r\nAlligator leather strap with gold folding clasp<br\/>"}
5887PT/Y2/9WV
Brand : | Breguet |
Collection : | Marine |
Model : | Marine Equation Marchante 5887 |
Reference : | 5887PT/Y2/9WV |
Complement : | Platinum - Alligator Strap |
On sale : | 2017 |
Brand : | Breguet |
Collection : | Marine |
Model : | Marine Equation Marchante 5887 |
Reference : | 5887PT/Y2/9WV |
Complement : | Platinum - Alligator Strap |
On sale : | 2017 |
List Price : | 258 200 € |
Diameter : | 43.9 mm |
Styles : | High Horology |
Types : | Self-winding |
Calibre : | 581DPE |
Complication : | Perpetual Calendar Small Seconds Tourbillon |
Case material : | Platinum |
Case peculiarity : | Sapphire caseback Fluted caseband |
Shape : | Round |
Water-resistance : | 100 meters |
Dial : | Gold Hand engraved |
Dial color : | Blue |
Display : | Breguet hands |
Indexes : | Luminescent Markers Roman numerals |
Strap material : | Alligator leather |
Strap color : | Dark blue |
Strap clasp : | Folding buckle |
+ More characteristics : | Movement Self-winding movement with running equation of time, perpetual calendar, tourbillon and 80-hour power reserve Numbered and signed Breguet 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 Balance frequency 4Hz Adjusted in 6 positions Case 950 platinum with delicately fluted caseband Dial Individually numbered and signed Breguet Breguet facetted hands in 18k gold with luminescent material Running solar hand with facetted golden sun Days of the week in an aperture between 10 and 11 o’clock Months and leapyear 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 Strap / Buckle Alligator leather strap with gold folding clasp |
Creativity, innovation and impeccable aesthetics are once again the keynotes of the prestigious models unveiled by Breguet at Baselworld. Loyal to its history, the House honours its founder’s broad range of competencies that proved of ample benefit to watchmaking as well as to navigation and astronomy. Elected a member of the Bureau des longitudes in Paris, and then chronometer maker to the French Royal Navy and a member of the French Academy of Science, A.-L. Breguet conceptualised and developed in the course of his career a wealth of spectacular timepieces including astronomical clocks and marine chronometers. Breguet and its President & CEO, Marc A. Hayek are now reinterpreting his unique heritage. The result is a horological marvel extending an open invitation to travel and discovery, in which sophisticated horological complications rub shoulders with stunning finishing. The flagship model of 2017, this new release redefines and takes the helm of the line it is joining. Breguet offers devotees of Haute Horlogerie an opportunity to discover the fundamentals of this exceptional model through a surprising exhibit combining visual panels and explanations, scale models and interactive modules. Unveiled on Saturday March 25th in a preview showing on the Swatch Group Plaza that will continue until Sunday 26th, this travelling exhibition will then make stopovers in major cities across Europe, Asia and the United States.
In parallel with this exclusive launch, Breguet continues to encourage women’s interest in mechanical watchmaking. The Manufacture is enriching its ladies’ collection with exquisite 2017 variations featuring a stunning array of gems, mother-of-pearl and other precious materials, crafted in the purest artisan-style tradition.
BREGUET MARINE EQUATION MARCHANTE 5887
Throughout his career, A.-L. Breguet consistently demonstrated his exceptional mastery of time measurement. His strong involvement and his revolutionary developments earned him significant recognition and numerous honours. Renowned the length and breadth of Europe, Breguet found a particularly active admirer in Louis XVIII, king of France. In 1814, the latter appointed him a member of the Bureau des longitudes in Paris. This body created in 1795 by the National Convention was dedicated to the advancement of the various branches of astronomy and their applications to geography, navigation and geodesy (the measurement and understanding of Earth’s physical properties). Its tasks included the annual publication of reference documents such as astronomical ephemerides. The Bureau des longitudes was a prestigious organisation whose 20 or so members included geometers, astronomers, seafarers and associate artists. The only representative of his profession that was eminently useful to physicists and navigators, Breguet became the horological authority, notably for the calculation of longitudes at sea. As an extension of this distinction, through an ordinance issued on October 27th 1815, Louis XVIII awarded A.-L. Breguet the official title of chronometer maker to the French Royal Navy.
This was the most prestigious title a horologist could hope to receive, given that the very concept of marine chronometry implied scientific knowledge. It also involved playing a crucial role for the country, as marine chronometers were of capital importance for fleets by making it possible to calculate ships’ positions at sea.
Following in the wake of this unique heritage, the House of Breguet now launches a worldwide exclusive model named the Marine Équation Marchante 5887. This “Grande Complication” marks the start of a new era for the contemporary Marine collection.
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.
Since Antiquity, 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. 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. 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 readoff is generally provided on a sector or subdial. 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. 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. 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.
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. 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.
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. 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.
The ingenuity of this spectacular model is accentuated by the precious expertise of the artisans exercising their skills within the House of Breguet. The front dial features two types of engineturning, including a “wave” pattern specifically developed for this new creation. The inscription “Marine royale” is engraved on the tourbillon bar, whose execution naturally draws the gaze. Visible through a sapphire caseback, the bridges have been delicately chased to depict in meticulous detail the Royal Louis, a first rank vessel in the French Royal Navy. The barrel is adorned with a windrose motif, in reference to astronomical navigation. Thanks to the carefully chosen positioning of the oscillating weight on the rim of the calibre, the self-winding movement deploys the full splendour of its decoration.
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. This “Grande Complication” comes with a 43.9mm-diameter case in rose gold or platinum. The rose gold version frames a silvered dial and an anthracite movement, while the platinum interpretation has a blue dial and a rhodium-plated movement. Elegance, legibility and aesthetic balance are the keynote features of these two equally sumptuous models.
Creativity, innovation and impeccable aesthetics are once again the keynotes of the prestigious models unveiled by Breguet at Baselworld. Loyal to its history, the House honours its founder’s broad range of competencies that proved of ample benefit to watchmaking as well as to navigation and astronomy. Elected a member of the Bureau des longitudes in Paris, and then chronometer maker to the French Royal Navy and a member of the French Academy of Science, A.-L. Breguet conceptualised and developed in the course of his career a wealth of spectacular timepieces including astronomical clocks and marine chronometers. Breguet and its President & CEO, Marc A. Hayek are now reinterpreting his unique heritage. The result is a horological marvel extending an open invitation to travel and discovery, in which sophisticated horological complications rub shoulders with stunning finishing. The flagship model of 2017, this new release redefines and takes the helm of the line it is joining. Breguet offers devotees of Haute Horlogerie an opportunity to discover the fundamentals of this exceptional model through a surprising exhibit combining visual panels and explanations, scale models and interactive modules. Unveiled on Saturday March 25th in a preview showing on the Swatch Group Plaza that will continue until Sunday 26th, this travelling exhibition will then make stopovers in major cities across Europe, Asia and the United States.
In parallel with this exclusive launch, Breguet continues to encourage women’s interest in mechanical watchmaking. The Manufacture is enriching its ladies’ collection with exquisite 2017 variations featuring a stunning array of gems, mother-of-pearl and other precious materials, crafted in the purest artisan-style tradition.
BREGUET MARINE EQUATION MARCHANTE 5887
Throughout his career, A.-L. Breguet consistently demonstrated his exceptional mastery of time measurement. His strong involvement and his revolutionary developments earned him significant recognition and numerous honours. Renowned the length and breadth of Europe, Breguet found a particularly active admirer in Louis XVIII, king of France. In 1814, the latter appointed him a member of the Bureau des longitudes in Paris. This body created in 1795 by the National Convention was dedicated to the advancement of the various branches of astronomy and their applications to geography, navigation and geodesy (the measurement and understanding of Earth’s physical properties). Its tasks included the annual publication of reference documents such as astronomical ephemerides. The Bureau des longitudes was a prestigious organisation whose 20 or so members included geometers, astronomers, seafarers and associate artists. The only representative of his profession that was eminently useful to physicists and navigators, Breguet became the horological authority, notably for the calculation of longitudes at sea. As an extension of this distinction, through an ordinance issued on October 27th 1815, Louis XVIII awarded A.-L. Breguet the official title of chronometer maker to the French Royal Navy.
This was the most prestigious title a horologist could hope to receive, given that the very concept of marine chronometry implied scientific knowledge. It also involved playing a crucial role for the country, as marine chronometers were of capital importance for fleets by making it possible to calculate ships’ positions at sea.
Following in the wake of this unique heritage, the House of Breguet now launches a worldwide exclusive model named the Marine Équation Marchante 5887. This “Grande Complication” marks the start of a new era for the contemporary Marine collection.
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.
Since Antiquity, 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. 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. 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 readoff is generally provided on a sector or subdial. 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. 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. 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.
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. 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.
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. 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.
The ingenuity of this spectacular model is accentuated by the precious expertise of the artisans exercising their skills within the House of Breguet. The front dial features two types of engineturning, including a “wave” pattern specifically developed for this new creation. The inscription “Marine royale” is engraved on the tourbillon bar, whose execution naturally draws the gaze. Visible through a sapphire caseback, the bridges have been delicately chased to depict in meticulous detail the Royal Louis, a first rank vessel in the French Royal Navy. The barrel is adorned with a windrose motif, in reference to astronomical navigation. Thanks to the carefully chosen positioning of the oscillating weight on the rim of the calibre, the self-winding movement deploys the full splendour of its decoration.
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. This “Grande Complication” comes with a 43.9mm-diameter case in rose gold or platinum. The rose gold version frames a silvered dial and an anthracite movement, while the platinum interpretation has a blue dial and a rhodium-plated movement. Elegance, legibility and aesthetic balance are the keynote features of these two equally sumptuous models.
Brand : | Breguet |
Collection : | Marine |
Model : | Marine Equation Marchante 5887 |
Reference : | 5887PT/Y2/9WV |
Complement : | Platinum - Alligator Strap |
On sale : | 2017 |
List Price : | 258 200 € |
Diameter : | 43.9 mm |
Styles : | High Horology |
Types : | Self-winding |
Calibre : | 581DPE |
Complication : | Perpetual Calendar Small Seconds Tourbillon |
Case material : | Platinum |
Case peculiarity : | Sapphire caseback Fluted caseband |
Shape : | Round |
Water-resistance : | 100 meters |
Dial : | Gold Hand engraved |
Dial color : | Blue |
Display : | Breguet hands |
Indexes : | Luminescent Markers Roman numerals |
Strap material : | Alligator leather |
Strap color : | Dark blue |
Strap clasp : | Folding buckle |
More characteristics : | Movement Self-winding movement with running equation of time, perpetual calendar, tourbillon and 80-hour power reserve Numbered and signed Breguet 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 Balance frequency 4Hz Adjusted in 6 positions Case 950 platinum with delicately fluted caseband Dial Individually numbered and signed Breguet Breguet facetted hands in 18k gold with luminescent material Running solar hand with facetted golden sun Days of the week in an aperture between 10 and 11 o’clock Months and leapyear 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 Strap / Buckle Alligator leather strap with gold folding clasp |