για να ξερουμε για τι μιλαμε καλο ειναι να γινει μια μικρη εισαγωγη...θα προσπαθησω
The Gyrotourbillon combines two intertwined tourbillon cages, the first inner cage doing one rotation in 18.75 seconds and the second outer cage in 1 minute. This combination on 2 axes set at a 90° angle creates the ellipsoidal movement of the regulator that is said to isolate this very regulator from the gravitational effects on the rate in any position. While the Gyrotourbillon 1 needed 2 minutes to take all positions, this Gyrotourbillon 2 will need 5 minutes.
Once again everything has been done to ensure the best timing to this calibre. The large size 14 carat gold balance wheel regulated to 4htz, or 28800 vph, has a 12.5 mgXcm² and is adjusted through gold inertia blocks arranged around its rim.
The cylindrical balance spring has a rectangular section.
The two final curves are chosen to allow a perfect breathing and a consequent isochronism. I have not been able to know the name of these curbs. Jaeger-LeCoultre has used existing curbs, but not Phillips curbs. The spring is pinned in a traditional triangular stud and the stud holder is secured with two screws for a safe fix.
The two final curves are chosen to allow a perfect breathing and a consequent isochronism. I have not been able to know the name of these curbs. Jaeger-LeCoultre has used existing curbs, but not Phillips curbs. The spring is pinned in a traditional triangular stud and the stud holder is secured with two screws for a safe fix.
Looking at these cages below it looks like a torture cage for the balance wheel but it is apparently a magical treat to forget gravity!
The new balance Wheel has open-worked arms to decrease the overall moving weight inside the cage. The 100 or so parts of the Gyrotourbillon apparel weight 3.4 grams (while the full calibre is 371 parts). The full spherical diameter of the aluminium cage is 10.85 mm.
The power reserve indicator also has a little refinement. There's an additional hairspring to compensate the play in the gear train, so that the power reserve indicated is always the real power reserve in the main spring.
The power reserve indicator also has a little refinement. There's an additional hairspring to compensate the play in the gear train, so that the power reserve indicated is always the real power reserve in the main spring.
The main spring is covered on top and below with sapphire parts to reduce friction.
The cannon-pinion wheel has a new and surprising design.
The cannon-pinion wheel is used to engage the main train to the cannon-pinion, i.e. to the hands. When the watch is running the wheel is attached to the cannon-pinion through sufficient friction. When the hands are set through the crown the friction between the cannon-pinion wheel and the cannon-pinion is not enough to make the main train be driven by the cannon-pinion. In some way the cannon-pinion is by force disengaged from the main train when the hands are set.
Obviously this amazing watch is not just a chronometric machine. It is somewhat a simple watch with little additional complication
