Greubel Forsey timepiece that contains their 5th Fundamental Invention: the Différentiel d’Égalité
Greubel Forsey presented the GMT Earth, the Double Balancier in 5Nred gold featuring a black gold and enamel dial
Greubel Forsey presented the GMT Earth, the Double Balancier in 5Nred gold featuring a black gold and enamel dial