SIHH 2018
The GMT Earth provides a complete
360° view of Earth, from the North
to the South Pole.
GREUBEL
FORSEY
AS THEY IMAGINED THE NEW GREUBEL FORSEY GMT EARTH,
WHICH DEBUTS AT SIHH 2018, ROBERT GREUBEL AND
STEPHEN FORSEY WANTED TO FULLY EXPOSE THE ALREADY
IMPRESSIVE TITANIUM GLOBE FOUND ON THE GREUBEL
FORSEY GMT MODELS.
After much deliberation and a host of calculations, the pair realized
they’d need to radically change the original movement architecture in
relation to the case shape and dimensions. In the end, t hey had to recon-
struct the sapphire crystal, which for this company is just another Tuesday.
Greubel Forsey has mastered the art of sapphire structure design during its
years of research, and this new GMT was just the firm’s latest challenge.
Clearly, they were more than up to the task. To offer a comprehensive,
three-dimensional view of the terrestrial globe, from the North to the South
Poles, Greubel and Forsey re-configured the architecture of the timepiece.
The globe, they reasoned, cannot be the only three-dimensional element in
the timepiece.
The resulting design treats multiple dimensions as a characteristic of
each feature and at every level.
The three-dimensionality first appears at the top of the dial, with the
hour, minute and small seconds indications. Then you’ll see the triangular
98 | INTERNATIONAL WATCH | SPRING 2018
red hand of the GMT indication followed by the power reserve indication
displayed by a long, thin hand. Finally, your eyes come to rest on the lowest
part of the dial, which shows the globe alongside the Tourbillon 24 Secondes,
Greubel Forsey’s third Invention.
The GMT Earth provides a complete 360° view of Earth, from the North to
the South Pole. It also enables a clear view of three time zones simultaneously,
to within a quarter of an hour. Furthermore, on the movement side of the
timepiece, 24 time zones are displayed – with the summer and winter times –
to complement the universal time indicated by the terrestrial globe.
This white gold GMT Earth is limited to 33 pieces.
TWO MORE DEBUTS
But Greubel Forsey has done much more than simply change the world at this
year’s SIHH. The firm also debuts its fifth Fundamental Invention called the
Différentiel d’Égalité, featuring the brand’s first dead-beat second display.
The wearer of this new piece will be able to watch this dead-beat in action
via a large dial opening – a typical Greubel Forsey open design. The dial side
also has a high-domed sapphire crystal; the movement side shows the “stop/
reset” mechanism and Robert Greubel and Stephen Forsey’s engraved inscrip-
tions. This white gold Différentiel d’Égalité is limited to 33 pieces.