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{"Compl\u00e9ment":"White gold","Statut de vente":"N est plus commercialis\u00e9","Date":"2010","Pi\u00e8ce unique":"No","S\u00e9rie limit\u00e9e":"No","Sexe":"Homme","Gaucher":"No","Diam\u00e8tre":"47","Types":"Hand-winding","Styles":"Atypical, High Horology","Calibre_autre":"9451 MC","Affichage_autre":"Blued steel hands","Complication":"Tourbillon","Mati\u00e8re du bo\u00eetier":"White gold","Particularit\u00e9 du boitier":"Sapphire caseback","Particularit\u00e9 du boitier_autre":"Circular-gained white gold crown set with a sapphire cabochon","Etanch\u00e9it\u00e9":"30 meters","Forme":"Round","Couleur du cadran":"Silver","Index":"Roman numerals, Railroad, Arabic numerals","Verre":"Sapphire","Mati\u00e8re du bracelet":"Alligator leather","Fermeture du bracelet":"Adjustable double folding buckle","Couleur du bracelet":"Black","Plus de caract\u00e9ristiques":"<div>Astrotourbillon movement <br \/><br \/>23 jewels<\/div><div>187 parts<\/div><div>Frequency :<\/div><div>21 600 vibrations \/ hour<\/div><div>Power reserve : 48 hours<\/div><div>Individually numbered movement<\/div><div><div><br \/><div>18 carat white gold case<br \/>18 carat white gold crown<br \/><\/div>18 carat white gold clasp<br \/><\/div><\/div>"}

Rotonde de Cartier Astrotourbillon

Reference: W1556204

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Brand  :	Cartier
Collection  :	Fine Watchmaking Collection
Model  :	Rotonde de Cartier Astrotourbillon
Reference  :	W1556204
Complement :	White gold
Year :	2010
Is not commercialised any more

145 000 €Recorded list price in FranceI WANT ITADD TO CART

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• Brand  :	Cartier
  Collection  :	Fine Watchmaking Collection
  Model  :	Rotonde de Cartier Astrotourbillon
  Reference  :	W1556204
  Complement :	White gold
  Year :	2010
  Is not commercialised any more
  List Price :	145 000 €
  Diameter :	47 mm
  Styles :	Atypical High Horology
  Types :	Hand-winding
  Calibre :	9451 MC
  Complication :	Tourbillon
  Case material :	White gold
  Case peculiarity :	Sapphire caseback Circular-gained white gold crown set with a sapphire cabochon
  Shape :	Round
  Water-resistance :	30 meters
  Dial color :	Silver
  Display :	Blued steel hands
  Indexes :	Roman numerals Railroad Arabic numerals
  Glass :	Sapphire
  Strap material :	Alligator leather
  Strap color :	Black
  Strap clasp :	Adjustable double folding buckle
  + More characteristics :	Astrotourbillon movement 23 jewels 187 parts Frequency : 21 600 vibrations / hour Power reserve : 48 hours Individually numbered movement 18 carat white gold case 18 carat white gold crown 18 carat white gold clasp

DESCRIPTION

• Watches in the Fine Watchmaking Collection
   
  Driven by a rush of creative energy since the 2008 SIHH, Cartier is pursuing its watchmaking ideal at the 20th edition of the SIHH with the presentation of five new fine watchmaking movements and nine new models.
   
  This challenge, which calls for technical and aesthetic creativity and exceptional expertise, has resulted in a range of movements that are as rare as they are spectacular: the Astrotourbillon movement, the Geneva Seal skeleton tourbillon, the perpetual calendar, and, lastly, the flying tourbillon.
   
  Drawing on the skills and excellence of its master watchmakers and designers, this year Cartier once again demonstrates that it is a genuine creator of fine watchmaking marvels. 
  
  The Rotonde de Cartier Astrotourbillon watch Calibre 9451 MC

  
  With the Rotonde de Cartier Astrotourbillon watch, Cartier unveils a movement that has been designed and produced entirely by Cartier master watchmakers. This spectacular creative and highly technical movement is the fruit of five years of development led by the Cartier Manufacture in La Chaux-de-Fonds.
  
  The 9451 MC movement incorporates a tourbillon carriage containing the various organs of the escapement and sprung balance. As in a classic tourbillon, the carriage is driven by the third wheel of the gear train. Similarly, the pinion of the escapement wheel rotates around a fixed seconds-wheel (the fourth wheel of the gear train) in order to drive the escapement. However, this spectacular tourbillon, christened the Astrotourbillon movement, also incorporates several other features that make it truly unique.
  
  First of all, the carriage has a special rotational axis, for it is positioned at the centre of the movement. This naturally requires a totally different gear-train design, from the two barrels of the movement through to the display of the minutes and hours.
  
  Another feature, responsible for the striking visual effect created by the Astrotourbillon movement, is that the balance staff and escapement-wheel staff are not on the same rotational axis as the carriage. They are located to one side of the carriage, in linear alignment with its rotational axis. Lastly, the tourbillon carriage is positioned “above” the movement between two dials, rather than being directly integrated into the movement as with classic tourbillons.
  
  This construction is highly unusual for a central tourbillon and has both aesthetic and technical consequences. Visually, the elongated carriage makes a complete revolution around the entire surface of the dial in one minute. The off-centred balance bridge, shaped like an arrow, indicates the seconds. Technically, in order to ensure the equilibrium of the carriage, it was necessary to incorporate a platinum counterweight on the opposite side of the carriage, hidden under the central dial. Furthermore, the weight of the carriage had to be limited (0.39 g for the entire carriage, excluding the counterweight) in order to control its inertia during rotation, hence the choice of titanium for its construction.
  
  Cartier has selected the contemporary elegance of the extra-large Rotonde de Cartier watch to house this movement. Its white- or pink-gold case, 47 mm diameter, large horn gap, and decorative screws all enhance the hypnotic effect of this truly elegant watch.