Presented in 2015 after two years of R&D, this ultra-thin Tonda 1950 Tourbillon timepiece houses a 3.4-mm-thick calibre made it the thinnest self-winding flying tourbillon in the world. Now the manufacture updates this line by introducing a version with an Abyss blue dial and a white gold case.
- An incredibly lightweight titanium tourbillon cage (0.255 grams): Its very low weight and inertia enable rotational movement with no loss of torque. The tourbillon's efficiency is increased, thus improving the timepiece's chronometry. The tourbillon cage completes one rotation every 60 seconds to allow the minutes to be measured.
- A variable inertia balance instead of a screw balance: This innovation enables the tourbillon cage to be designed with a sleek shape. This, in turn, leads to improved aerodynamics and better overall stability in the tourbillon's operation.
With its signature Abyss blue dial decorated with Côtes de Genève, the new Tonda 1950 Tourbillon with a white gold case marries delicacy with technical virtuosity.
Power reserve: 48 hours
Frequency: 3 Hz – 21,600 Vib/h
Dimensions: 14 ¼''' – Ø 32.0 mm
Thickness: 3.4 mm
Decoration: "Côtes de Genève" decoration, bevelled bridges
Dimensions: Ø 40.2 mm
Material: 22 ct white gold
Water resistance: 30 m
Crystal: Anti-reflective sapphire
Colour: Abyss blue
Indices: Rose gold gilded, luminescent coating
Finish: Côtes de Genève
Hands: Delta-shaped, luminescent coating
Colour: Indigo blue
Buckle: Ardillon buckle