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Double Tourbillon Technique 30° Bi-color |
The Double Tourbillon Technique 30° Bi-color is a
reinterpretation of Greubel Forsey’s first invention, the Double Tourbillon
30°, which was initially built into timepieces of more conventional styling and
classic architecture. Now the company offer a new way of appreciating the
subtleties of the invention with stunning contrasts between the rose gold of
the case and the deep black chrome finish of the movement. It is made in a
unique edition of just 22 timepieces.
The Heart of the Mechanism
The Double Tourbillon Technique 30° Bi-color, an original
and innovative interpretation of Greubel Forsey’s first fundamental invention,
the Double Tourbillon 30°, reconfigures its architecture in a diametrically
opposed style, while providing a demonstration of mechanical skill.
The unique architecture draws you right into the mechanism.
The synthetic sapphire-crystal is a kind of window looking onto an animated
miniature world, a veritable jigsaw of pieces that takes your eye from one set
of gears to the next. The details of each component reveal themselves as your
gaze explores the timepiece.
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The caseback reveals the beautiful movement architecture. |
Transparency and Harmony
This special timepiece is a perfect expression of Greubel
Forsey’s ideals and spirit: transparency above all. Each element of the
mechanism is magnified without overwhelming its neighbor, though the centerpiece
of this watch remains the Double Tourbillon 30°.
As a tribute to the ancestral craft of the watchmaker, and
yet plant it firmly in the 21st century, new mechanisms have been incorporated
into this watch, notably quadruple barrels, connected to the power reserve
differential, that deliver 120 hours of running time.
When you wind the movement, you can see the barrels rotating
over and again. The transparent sapphire-crystal ring, on which the hour
markers are inscribed, only takes up the inside rim of the bezel, allowing
light to reach into every level of the mechanism. An equal concern for
refinement is applied to the hands, which are opened for transparency. The
sectorial power-reserve indicator can be found at 3 o’clock, and the circular
subdial of the small seconds at 9 o’clock, their bright red hands, symbolizing
air and life, illustrate our thirst for technical modernity.
The Spirit
With the open architecture of this timepiece the brand has
once again sought to demystify its art by displaying it openly. In its inventions
Greubel Forsey strives not only for supreme workmanship, quality and
reliability, but also for visibility. This Double Tourbillon Technique 30°
Bi-color is made to be shared. That is what the company commits to in the
message engraved in relief on the black ADLC plate on the left side of the
case. The text expresses the brand’s total devotion to its art with the firm
intention of taking it forward, as well as reflecting on the complex structure
of the movement. But it is fundamentally a matter of needing to share its boundless
enthusiasm for precision timekeeping. On the crown side, a group of key words
sum up these fundamental values.
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Despite its size (47.5mm), the watch is surprisingly comfortable. |
This philosophical framework gives maximum expression to the
decoration of the movement. The sharp internal corners are all beveled and
hand-finished. In keeping with tradition, the mainplate and bridges are in
frosted nickel-silver with a black chrome finish. The Tourbillon bridge remains
in steel, beveled and flat black polished by hand. It contrasts with the gold
hands matching the new case in rose gold. This case measures 47.5mm by 16.84mm,
and it is enhanced by side plates in titanium with black Amorphous Diamond Like
Carbon (ADLC) coating recounting the story of the inventors. The Greubel Forsey
spherical differential can be found at 1:30, here applied to the power-reserve
indicator at 3 o’clock, with its swan’s neck bridge and beak hand. The star of
the show can be found at 6 o’clock: the Double Tourbillon 30° beating at
21,600v/h. Its first carriage rotates horizontally in four minutes; its second,
inclined at 30°, goes around in one minute. Small seconds display at 9 o’clock.
Finally at 11 o’clock, fast-rotating, superimposed quadruple barrels with
protection against excess tension counterbalance the double tourbillon. They
provide 120 hours of precision timekeeping in a total running time of 160
hours. Noticeable in the center is a special tripod structure that firmly
supports the hands. A final glimpse, a similar structure supports the spherical
differential for the winding system on the movement side.
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