Tourbillon Bi-Cylindrique

  • Model: M106494
  • Shipping Weight: 1g
  • Units in Stock: 516

The Tourbillon Bi-Cylindrique is the world's first wristwatch to feature a tourbillon with double cylindrical balance springs. The watchmakers in Villeret miniaturized and transplanted the precisely beating escapement with a cylindrical hair spring – originally developed in the 18th century for marine chronometers – into a tourbillon. Because the two cylindrical balance springs develop respiration in opposition to each other and maintain identical torque, the isochronism is even further optimized for extreme precision in the watch’s movement. A technique never before attempted in a wristwatch.

  • Ident Number: 106494
  • Calibre: MB M65.63
  • Movement Type: Manually wound movement with 1-minute tourbillon at 12 o'clock
  • Case Size: 44-47 mm
  • Material: 18 K white gold
  • Diameter: 47 mm

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