Cartier watchmakers used an anti-reflective sapphire crystal disc and dug a hole in it the same size as the tourbillon, thus perfectly creating the illusion that the tourbillon frame is suspended. To achieve this illusion, they rotated the disc that supports the frame, and then placed the minute wheel that drives the oscillator on an axis that limits the inherent “resistance moment” of the mechanism that supports the tourbillon.
Power is transmitted to the tourbillon, allowing the entire device to complete a suspended rotation every minute. Therefore, when the tourbillon completes one rotation every 1 minute in a transparent open space, its frame performs a complete rotation. The secret to achieving this is to set a set of racks around the edge of a sapphire crystal disc, connecting the disc to a large gear that rotates once every minute.
This “magic watch” is equipped with a refined hand-wound mechanical movement produced by an independent watchmaker and is the culmination of long-term research and development by the watchmaker. For example, determining the speed of each moving part requires countless calculations. In order to minimize energy consumption, the tourbillon frame completes a complete rotation in its specific space every 1 minute. In order to improve the efficiency of this mobile device, the weight of each component of the movement has been reduced to a minimum, allowing for better control. Inertia of the rotating components including the disc and titanium tourbillon cage.
Although the weight of the “suspended” frame has been reduced to a minimum (028 grams), in order to compensate for the weight of the speed regulating mechanism and the frame, part of the circular frame for the meshing gear is made of K gold and is installed opposite the tourbillon. Positioned so that the weight is equal on both sides, creating a dynamic balance effect.
Rotonde Tourbillon Mysterieux Double Mystery Tourbillon Watch Technical Parameters.
Case: 904 stainless steel
Diameter: 45mm
Crown: platinum bead-shaped crown, set with a convex natural spinel
Mirror: sapphire crystal
Case back: sapphire crystal transparent case back
Waterproof depth: 30 meters / 100 feet / 3 bar
Dial: dark gray electroplated engraved dial, silver-plated hollow grille with sunray effect, black transferred Roman numerals
Pointer: Sword-shaped blue steel pointer
Strap: Calfskin strap imported from Italy
Clasp: Original stainless steel folding clasp
Movement: Cartier 9454 MC workshop-refined manual winding mechanical movement, engraved with the “Geneva Seal of Quality”, equipped with a double mysterious tourbillon
Number of ruby bearings: 25
Number of movement parts: 242
Balance wheel vibration frequency: 21,600 times per hour
Power reserve: 42 hours
Each watch is individually coded, so you can choose your favorite lucky number if you book in advance.
