Double Balancier
55 pieces (2016-2022) | White gold | Red gold | SapphireStemming from fundamental research into the inclination of oscillators and escapements, the Double Balancier offers a significant approach to improve chronometric timing performance for the timepiece, both on and off the wrist.
A movement with two oscillators inclined in different three dimensional planes offers two notable factors in the pursuit for improved chronometric performance. Firstly the inclined oscillators act in stabilised positions to significantly reduce the possibility to be in either a horizontal (flat) or vertical position. The second is that the two inclined fixed oscillators are linked by a spherical differential that averages rating differences and ensures an optimal performance at all times whether in stabilised ( horizontal or vertical) positions or dynamically (on the wrist).
As with all Greubel Forsey timepieces, the level of hand-finishing and decoration throughout the Double Balancier is without compromise. Movement components are designed with forms that bring out their beauty to maximum effect, offering myriad sublime details to be discovered and esteemed.
Invention
Double BalancierIn order to obtain the average timing rate in a stable position, we explored using the Double Balancier, i.e. two oscillators positioned along two different axes at precise predetermined angles. Thanks to the combined effects of the spherical differential and the angle of the balances, this system helps to minimise the effects of gravity and maximise timing precision in stable positions.
Double Balancier
Double balancier, hours and minutes, small seconds, 4-minutes spherical constant differential rotation, power-reserve.
Download the data sheet- Case material White gold | Red gold | Sapphire
- Limitation 55 pieces (2016-2022)
- Chronometric power reserve 72 hours
- Case diameter 43 mm
- Water resistance 3 ATM - 30 m - 100 ft
- Number of parts 285
- Frequency 21,600 vibrations/hour
- Height (incl. crystal) 13.38 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
