Duomètre Sphérotourbillon Moon

AN ACCURATE MOONPHASE FOR 3887 YEARS AROUND AN AMAZING REGULATING ORGAN !

The Sphérotourbillon is an amazing mechanical « Heart » that isn't affected by the gravity. Its movement mixed with some ingenious developments such as the cylindrical hair spring, gives an efficient regulation to the caliber 389.

Furthermore, 2 separated barrels are present on the timepiece. That’s why 2 power reserve are on the dial. The idea is to separate their fonctions in order to offer more precision and energy distribution. One is dedicated to the « Time » mechanism and the other to the « Regulation »

At 2 o’clock, you have the Dual Wing concept. By pushing a button, the small second on the lower part of the dial goes back to zero instantaneously. The interesting thing is that the complication is not going to affect the regulating organ performance.

As always, the finishing is stunning and the overall aesthetic a true pleasure! We love the « steps » close to the Sphérotourbillon and the side case open window.

Congratulations! JAEGER-LECOULTRE.

Limited edition of 75 pieces

Description:

Caliber 389
Manual winding
Power reserve: 45 hours
Jewels: 56
Components: 476

Sphérotourbillon
Components: 105
Tourbillon cage material: titanium grade 5
30 seconds for one complete revolution
Frequency: 21’600 vph

Case
Diameter: 42 mm
Material: Platinum
Water resistance: 30 meters