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Girard-Perregaux - Constant Escapement

Girard-Perregaux - Constant Escapement
Launching the Haute Horlogerie Constant Escapement collection, Girard-Perregaux presented the Constant Escapement, the result of over five years of research and development in the field of constant force, one of the highest goals for watch makers.


The principle of a constant force escapement is that whatever the energy supplied by the barrel, the escapement returns a constant energy to the regulator (balance wheel). To achieve this, they had the brilliant idea of integrating an intermediate device into the escapement, consisting of an extremely thin blade that stores the energy up to an invariable threshold bordering on instability, and then transmits it all instantaneously, before recommencing the cycle.


The inspiration came from an experiment, which anyone can repeat by holding a train ticket vertically between thumb and forefinger, bending it to form a C or an open round bracket. If you then apply pressure from the side you will feel resistance until the moment when the card snaps to the other side to mirror its former shape, and close the round bracket. Try it with a business card, it works every time. The video below gives a clear idea of how it works.


While silicon was the material of choice for its ideal properties in the design and manufacture of the blade, it may be replaced by other materials for escapement wheels, while the movement blanks are in brass coated in black PVD for a contemporary look.

The movement was designed to run for several days with a linear power reserve indicator on the dial, demonstrating the efficiency of this escapement in the long run. The energy is supplied by two barrels coupled in parallel (a new patented design): the cover and the ratchet are a single piece to maximise the thickness available and each drum contains two springs stacked in series.

The revolutionary movement is housed in a round 48 mm diameter case in white gold with a curved case band.


To offer maximum visibility to the escapement itself, with its butterfly wing frame and the vibrating blade in its central axis, the hours and minutes occupy a sub-dial off-centered at 12 o’clock. This is flanked by the two energy reservoirs in the shape of the double barrels. The power reserve indicator is placed at 9 o’clock. 

The whole of the lower part of the watch is reserved for the Constant Escapement beating at the frequency of 3 Hz or 21,600 vibrations per hour. Under the anti-glare treated sapphire glass three  bridges are visible and play their structural role in a novel layout.


This new manually wound calibre is 8 mm thick,  while the case is 14.63 mm, with a wide open sapphire glass back held in place by 6 screws.

With its hand-sewn alligator strap and folding clasp, the model will be offered in Girard-Perregaux’s Haute Horlogerie collection.

COMMENTS

Name

A. Lange & Sohne,146,Accutron,1,AkriviA,11,Alain Silberstein,4,alarm,18,Alpina,22,Andersen Geneve,2,Andersmann,2,Andreas Strehler,5,Angelus,6,annual calendar,44,Anonimo,15,Anthony de Haas,2,Antiquorum,4,Antoine Martin,2,Antoine Preziuso,1,Apple,2,Apple Watch,2,Aquadive,2,Aquastar,1,Armin Strom,82,Arnold and Son,27,Artime,1,Astarwatch,1,Atelier de Chronometrie,1,Ateliers deMonaco,2,Atmos,1,Auctions,94,Audemars Piguet,97,Autodromo,1,automaton,2,BA111OD,1,Ball Watch,1,Bamford,2,Baselword 2022,1,Baselworld,8,BaselWorld 2013,50,BaselWorld 2014,53,Baselworld 2015,69,Baselworld 2016,27,Baselworld 2017,64,Baselworld 2018,75,Baselworld 2019,41,Baselworld 2020,2,Baume,4,Baume & Mercier,20,Baume et Mercier,73,Beaubleu,1,Bell & Ross,41,Berneron,1,Bernhard Lederer,5,Bernhard Zwinz,1,bespoke,1,Blancpain,102,blue dial,3,Bonhams,2,Bovet,15,Brands histories,1,Breguet,133,Breitling,74,Bremont,1,Bremont Watch Company,4,Breva,2,bronze,28,Bücherei,1,Bucherer,1,Bulgari,123,Bulova,2,Burberry,1,C3H5N3O9,1,carbon,4,carillon,4,Carl F. Bucherer,4,Carl Suchy,1,Carrera,20,Cartier,49,ceramic,24,Certina,13,Chanel,5,Chaumet,3,chiming hour,15,Chopard,42,Christiaan van der Klaauw,2,Christie's,9,Christophe Claret,5,Christopher Ward,15,chronograph,793,chronometer,42,Chronoswiss,6,Cimier,1,Citizen,6,co-axial,1,column-wheel,9,complete calendar,29,complications,91,concept watch,5,Concord,1,constant-force,39,Corum,18,Credor,2,CSEM,1,Cuervo y Sobrinos,1,Cyrus,38,Czapek,8,Dan Niederer,1,Davosa,1,Daytona,8,De Bethune,30,de Grisogono,3,dead seconds,21,Delma,2,detent escapement,5,DeWitt,9,digital display,1,dive watches,101,diving,8,diving watches,420,double regulator,3,Doxa,41,drei,1,dress watches,543,dual time,108,Ebel,2,Eberhard,35,Edouard Koehn,9,Edox,6,El Primero,44,Emile Chouriet,1,Emmanuel Bouchet,1,Emmanuel Breguet,1,enamel dial,14,enamelling,16,Equation of time,10,ETA,1,Eterna,18,exhibitions,1,F.P.Journe,40,Faberge,2,factory tours,3,Favre-Leuba,1,feature article,93,features,129,Felipe Pikullik,2,Ferdinand Berthoud,8,flyback,64,Fondation de la Haute Horlogerie,1,Formex,1,Fortis,9,Franc Vila Founder,1,Franck Muller,8,Frederic Jouvenot,1,Frederique Constant,23,Furlan Marri,1,FVF,1,Gallet,1,Garrick,1,Geneva Watchmaking Grand Prix,8,Georg Jensen,1,George Daniels,4,Gerald Charles,2,Gerald Genta,13,Girard-Perregaux,48,Glashuette,19,Glashuette Original,99,Glashütte,33,Glashütte Original,132,Glycine,4,GMT,143,GoS,1,GoS Watches,1,GPHG,23,GPHG 2020,3,GPHG 2021,3,GPHG 2022,3,GPHG 2023,3,GPHG 2024,3,GPHG2019,1,Graham,6,Grand Feu,7,Grand Prix d’Horlogerie de Geneve,17,Grand Seiko,36,Grande Complication,28,Grande Sonnerie,9,Greubel Forsey,40,greubelforsey,1,Grøne,1,Gronefeld,10,Grönefeld,8,Grossmann,3,guilloché,8,H. Moser and Cie,51,H20 Watch,1,Habring,10,Habring2,11,Hajime Asaoka,2,Hallmark of Geneva,2,Hamilton,38,hands-on,137,Hanhart,23,Harry Winston,11,Hautlence,6,Hermes,26,Heuer,2,high jewellery,2,high-frequency,5,Hublot,66,Hybris Artistica,1,Hydro Mechanical Horologists,7,HYT Watches,16,Icon,1,In pictures,18,independent watchmaker,39,industry news,245,interview,9,Interviews,9,IWC,177,Jacques Bianchi,1,Jaeger-LeCoultre,131,Jaquet Droz,58,Jean-Francois Mojon,1,Jean-Marc Pontroué,1,JeanRichard,3,jumping hours,38,Junghans,12,Kaj Korpela,1,Kari Voutilainen,11,Kazuo Maeda,1,Kenissi,1,Kollokium,1,Korpela,1,Krayon,4,Kudoke,6,Kurono,2,L.Leroy,1,L'Epee 1839,2,Labails,1,Ladies watches,198,Lang & Heyne,4,Lang 1943,1,Lange,54,large date,3,Laurent Ferrier,26,Laureus,2,Le Garde Temps,1,Lederer Watches,5,Leica,3,Lemania,1,Leroy,4,Linde Werdelin,2,Longines,106,Louis Erard,36,Louis Moinet,8,Louis Vuitton,3,luxury steel watch,31,LVMH,10,LVMH 2020,6,M.A.D.Edition,5,M.A.D.Editions,5,Maîtres du Temps,1,Manufacture Contemporaine du Temps,3,Manufacture Royale,3,Marc Lang,1,marine chronometer,2,Marqueterie,1,Maurice de Mauriac,2,Maurice Lacroix,28,MB&F,74,MCT,1,MeisterSinger,99,meteorite,3,metiers d'art,3,Mickey Mouse,2,Mido,71,military watches,14,Minerva,4,Ming,2,Minute Repeater,62,monopusher chronograph,5,Montblanc,58,moon phases,135,Moritz Grossmann,31,Moser,46,Muhle,6,Mühle-Glashütte,5,mystery watches,4,Nautilus,14,New Britain Corp,1,new watches,3884,Nivada,3,Nomos,82,Norqain,32,Ochs und Junior,6,Officine Panerai,110,Omega,208,Only Watch,15,Only Watch 2015,4,Only Watch 2017,2,Only Watch 2019,3,Only Watch 2021,4,Only Watch 2023,10,Oris,44,paillonne,1,Panerai,113,Parmigiani,17,Parmigiani Fleurier,36,Pascal Coyon,1,Patek,62,Patek Philippe,139,Pedrozo & Piriz,1,perpetual calendar,157,Perrelet,12,Petermann Bedat,3,Phenomen,1,Philippe Dufour,1,Phillips,10,Piaget,43,Pierre DeRoche,2,pilot,1,pilot watch,116,Pininfarina,1,Pisa,17,Pisa 1940,5,Pisa Circle,13,Pita,1,planetarium,3,platinum,8,pocket watch,4,pocket watches,2,Poehlmann-Bresan,2,Poincon de Geneve,2,Porsche Design,17,Pre-SIHH 2016: Cartier - Clé de Cartier Automatic Skeleton,1,pulsometer,5,Purnell,1,quartz,11,Rado,20,Ralf Tech,3,Ralph Lauren,2,rattrapante,26,Raul Pages,3,Raymond Weil,5,rectangular watches,16,reddot award,1,regatta,3,regulator,31,remontoire,5,Remy Cools,1,Renaud Tixier,1,Reservoir,2,resonance,22,Ressence,13,retrograde,11,Revelation,1,Reverso,28,review,140,RGM,1,RGM Watch Co.,1,Richard Mille,120,Richemont,4,Richmond,1,Roger Dubuis,12,Roger Smith,1,Roger W. Smith,1,Rolex,72,Romain Gauthier,13,Romain Jerome,1,Royal Oak,40,Rudis Sylva,1,sapphire,4,Schwarz Etienne,1,Seamaster,11,Seiko,41,SevenFriday,26,SIHH,3,SIHH 2012,4,SIHH 2013,25,SIHH 2014,36,SIHH 2015,43,SIHH 2016,44,SIHH 2017,41,SIHH 2018,43,SIHH 2019,53,Simon Brette,2,Singer,7,Singer Reimagined,11,single hand,33,single-hand watches,40,Sinn,16,skeleton,36,smartwatch,9,solar energy,1,Sotheby's,8,Speake Marin,6,Speake-Marin,6,Speedmaster,39,split seconds,27,sport,1,sport watches,1010,sportwatches,1,Spring Drive,3,square watches,4,squelette,61,steampunk,1,Steinhart,1,Strehler,1,striking time,16,SuisseMecanica,1,sunrise,2,sunset,2,Swatch,9,Swatch Group,24,Sylvain Pinaud,2,table clocks,4,Tag Heuer,189,tantalum,1,technical insight,3,terra Cielo Mare,1,Theo Auffret,1,tides,1,Tiffany,17,Tissot,10,titanium,12,top news,465,Torsti Laine,1,tourbillon,388,Trilobe,4,Tudor,40,Tulloch,1,Tutima,4,ultra thin,36,Ulysse Nardin,40,Unimatic,1,Union Glashutte,15,Universal Genève,1,Urban Jurgensen,29,Urwerk,22,Vacheron Constantin,83,Van Cleef & Arpels,7,Vauchier Fleurier,1,Vianney Halter,6,video,1,vintage watches,3,Vulcain,11,wandering hours,1,watches,1,Watches & Wonders,42,Watches & Wonders 2020,19,Watches & Wonders 2021,28,Watches & Wonders 2022,35,Watches & Wonders 2023,38,Watches & Wonders 2024,47,Watches & Wonders 2025,2,Watches&Wonders,10,WatchesandWonders2022,35,WatchesandWonders2023,39,WatchesandWonders2024,48,WatchesandWonders2025,2,Wilhelm Schmid,1,Winnerl,1,worldtime,62,YEMA,5,Zannetti,1,Zeitwerk,2,Zeitwinkel,1,Zenith,118,Zodiac,9,
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Time and Watches | The watch blog: Girard-Perregaux - Constant Escapement
Girard-Perregaux - Constant Escapement
Girard-Perregaux - Constant Escapement
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