Double Tourbillon 30˚ Technique
188 pieces (2009-2022) | White gold | Red gold | Platinum | Sapphire | Titanium | CeramicThe Double Tourbillon Technique is a case study in precision mechanical watchmaking with the sapphire crystal acting as a portal through which to observe the mesmerizing workings of the intricately interlocking parts.
The eye is naturally drawn from one gear to the next, enabling careful observation of each separate element.
With the Double Tourbillon Technique, Greubel Forsey has created a truly stunning timepiece that is faithful to their philosophy of technical visibility.
Each and every element of the mechanism is enhanced and displayed without overshadowing others.
At the heart of the timepiece is the Double Tourbillon 30˚ mechanism; however, to perpetuate the art of horology and contribute to its 21st century development, several additional technical elements have been added, including four fast rotating co-axial barrels guaranteeing 120 hours of autonomy.
By virtue of its fully visible mechanism, the Double Tourbillon Technique is a showcase for Greubel Forsey’s unique blend of technical mastery coupled with superb aesthetic finishing.
The timepiece reinforces Greubel Forsey’s commitment to absolute quality and fine craftsmanship, also expressed in the discreet message from the inventor watchmakers engraved around the case band.
These highly personal words convey Greubel Forsey’s total dedication to its art and its contribution to horological advancement through fundamental research, the sophisticated architecture of its movements and its relentless pursuit of optimal timekeeping.
Invention
Double Tourbillon 30˚Inside a cage which rotates in four minutes, the interior cage containing the balance and spring assembly is inclined at an angle of 30˚ relative to the first cage and completes a revolution in sixty seconds. The combination of the 30˚ inclination with the different rotational speeds of the two tourbillons improves timekeeping by averaging out positional errors due to gravity in all usual wristwatch positions and especially in stable positions.
Double Tourbillon 30˚ Technique
Double Tourbillon 30˚, hours and minutes, small seconds, outer tourbillon 4-minutes rotation, inner tourbillon 60-seconds, power-reserve.
Download the data sheet- Case material White gold | Red gold | Platinum | Sapphire | Titanium | Ceramic
- Limitation 188 pieces (2009-2022)
- Chronometric power reserve 120 hours
- Case diameter 47.5 mm
- Water resistance 3 ATM - 30 m - 100 ft
- Number of parts 396
- Frequency 21,600 vibrations/hour
- Height (incl. crystal) 16.84 mm
The History
Double Tourbillon 30˚
Tourbillon 24 Secondes
Invention Piece 1
Quadruple Tourbillon
Invention Piece 3
Double Tourbillon 30˚ Technique
Invention Piece 2
GMT
Quadruple Tourbillon Secret
Tourbillon 24 Secondes Contemporain
Double Balancier 35˚
Double Tourbillon 30˚ Asymétrique
Art Piece 1
Tourbillon 24 Secondes Vision
Signature 1
Double Balancier
Balancier
Différentiel d'Égalité
GMT Earth
Art Piece Édition Historique
GMT Quadruple Tourbillon
GMT Sport
Balancier S
