The GMT Earth provides an amazing 360° view of our planet Earth all the way from the North to the South Pole.
The movement of the Double Tourbillon 30° is hand-wound. It has a 120-hour power reserve guaranteed by four fast-rotating coaxial barrels.
Four tourbillons, each independently contributing towards optimal timekeeping precision, the Quadruple Tourbillon features an asymmetric case.
Unique edition. 33 white gold pieces
Greubel Forsey exclusively presents the first Double Balancier à Différentiel Constant.
This new mechanism redefines the limits of timekeeping. Two inclined balances optimise performance in a stable position, while a constant spherical differential provides more steady amplitude.
Aesthetically, this timepiece catches the eye with powerful three-dimensional aspects, opening wide to the heart of the mechanism. We are diving into an architectural world built on many levels, a miniature city constructed between the balances whose inclination is almost dizzying.
The dial of the QP à Équation indicates leap years, the 24 hours of the day and night, the day of the week, the large date, the month, the hours, the minutes and the seconds, as well as the chronometric 72-hour power reserve.