GREUBEL FORSEY dual gyroscope 30° ceramic craft | Vogue Watches Luxury Watch Swiss Watch

The double tourbillon 30° is the first fundamental invention of Glauber Fauci, which was exhibited at the Baselworld in 2004. This proved the success of the independent studio. Seven years later, the double tourbillon 30° technology won the first place on Concours. International timekeeping. Throughout the competition, the total score of this timer reached 915 points (maximum 1000 points), and the average timing speed was 0.3 to 0.8 seconds per day.

Now, Greubel Forsey has introduced ceramic double tourbillon 30° technology, which is an extremely precise, delicate and robust timepiece.

The 30°Double Tourbillon in the center of the timepiece contributes to its extraordinary accuracy. Inside the four-minute rotatable cage, a smaller cage equipped with a balance wheel and spring assembly is tilted at an angle of 30° relative to the first cage, and the rotation is completed within 60 seconds. Combining the 30° inclination with the different speeds of the two tourbillons can average out all common watch positions (especially stable positions) due to the position errors caused by gravity, thereby improving the timing performance.

In the Double Tourbillon 30° double tourbillon technology, four coaxial barrels are connected to a spherical power reserve differential, which can provide 120 hours of chronograph power reserve.

Inspired by the phenomenon of transparency and light, Robert Greubel and Stephen Forsey pushed the boundaries of watch architecture to draw onlookers to the iconic Greubel Forsey (Greubel Forsey) ) Inside the timepiece. This limited edition of 11 timepieces is made of ceramic for the first time. It is a highly rigid material and is now on sale in the US market.

The shadow of the impressive blue ceramic case contrasts with the flood of light in the sapphire crystal movement. The clock has been redesigned to include these elements, requiring very special expertise and knowledge. Now it reveals the fascinating sight of two complete suspensions of the dual tourbillon 30° movement.

Transparency has always been an indispensable part of Greubel Forsey’s work, and this is particularly evident in the construction of the various versions of the Double Tourbillon 30°Technique-all presenting a panoramic view of the movement architecture. This dual ceramic tourbillon 30° technology breaks the boundaries of transparency by reconsidering the structure of the entire timepiece to adapt to the special constraints of the sapphire crystal.

The eyes can tell every detail. The gold small seconds and power reserve indicator are finished in blue, which contrasts sharply with the matte main board, reminiscent of sparkling blue ceramics.

The hour and minute hands and the 4-minute tourbillon rotation indicator at 6 o’clock are all immersive structures made of sapphire, allowing light to enter all levels of the mechanism. The hands are hollowed out to further enhance light and transparency. In the mysterious dance that seemed to hang in the air, Double Tourbillon 30° immediately attracted the attention of the audience.

After rebuilding the movement, Robert Greubel and Stephen Forsey met the challenge of accommodating the sapphire crystal element, especially the mechanical processing and finishing in three dimensions to achieve Grober ·The unique geometric shape of Fauci watches and strict standard sapphire crystal elements.

The watchmakers of the two creators took the movement to the extreme of architecture and created a three-dimensional sapphire bridge, which proved to be particularly challenging to achieve. It is processed from a single piece of sapphire, and its side is polished with different crystal grains. It requires highly professional tools, excellent precision and expertise. The beveled corners reveal a matte finish, which contrasts sharply with the polished transparent surface of the sapphire.

Due to this transparency, the entire wheels and pinions that make up the timepiece are exposed to reveal an unprecedented visual effect on the movement structure.

On the dial side, the tourbillon bridge, barrel bridge, differential bridge and power reserve bridge have been removed and remade in sapphire to show the internal mechanism of the timepiece. In order to incorporate these new elements, sports must be reconsidered. In this creative spirit, even the restrictions imposed by screws are considered: the bridge is specially installed to absorb the impact that sapphire may suffer. Therefore, the plates, bridges and mechanical structure are completely new.

Due to this transparency, the entire wheels and pinions that make up the timepiece are exposed to reveal an unprecedented visual effect on the movement structure. watch replica

On the side of the bottom cover, the three-dimensional gear chain bridge can clearly see the magnificent building below. This unusually large bridge has a multi-layer design with with holes that allow the wheels to accurately overlap the sapphire. The whole mechanism emits light, rewarding the beholder with a fascinating sight. The lower tourbillon bridge (also made of sapphire) accurately replicates the steel bridge that originally used Double Tourbillon 30° technology, marking a major achievement in sapphire craftsmanship.

This is the first time Greubel Forsey has shown the movement inside a ceramic case, which requires extremely high precision. The material is compacted by pressing and shaped before firing. During the heat treatment, it shrinks by about 25%. watch copy

In the end, the diameter of the case is 48.40 mm and the height is 17.77 mm. Once the component is sintered at a very high temperature, the ceramic will solidify, making the housing extremely rigid and therefore more difficult to use. The material becomes very resistant to scratches and corrosion, which means that surface treatment requires excellent expertise.

From polishing to linear or circular satin finishing, these finishings make the contours of the timepiece more perfect, thus perfecting it in the true Greubel Forsey spirit. The dark blue ceramic brings subtle sparkle to the Double Tourbillon 30° technology, while its physical properties make it extremely resistant. The blue ceramic case and sapphire movement exude countless colors, surface treatments and textures.

It is equipped with a blue rubber strap with a titanium folding clasp and is decorated with a hand-engraved Graubel Fauci logo. The crown-also ceramic-bears the copy Greubel Forsey logo engraved in tone.

Technical details

Model: Double Tourbillon 30° Technique Ceramic

Movement
Hand-wound movement with synthetic sapphire bridges
Patented tourbillon
Double Tourbillon 30° • hours and minutes • small seconds • outer tourbillon 4-minutes rotation • inner tourbillon 60-seconds • power-reserve

Movement dimensions
• Diameter: 38.40 mm
• Thickness: 12.15 mm

Number of parts
• Movement: 421 parts
• Two tourbillon cages: 132 parts
• Weight of the two cages: 1.17 g

Number of jewels
• 43
• Olived-domed jewels in gold chatons

Chronometric power reserve
• 120 hours

Barrels
• Four coaxial series-coupled fast-rotating barrels (1 turn in 3.2 hours), one of which is equipped with a slipping spring to avoid excess tension
• 22k gold cover with nickel-palladium treatment and relief engraving

Balance wheel
• Variable-inertia with white gold mean-time screws (10.70 mm diameter)

Frequency
• 21’600 vibrations/hour

Balance spring
• Phillips terminal curve
• Geneva-style stud

Main plates
• Nickel silver, frosted with polished beveling and countersinks, straight-grained flanks, nickel-palladium treatment

Bridges
• Synthetic sapphire crystal, polished flanks
• Nickel silver, frosted and spotted with polished bevelling and countersinks, straight-grained flanks, nickel-palladium treatment
• Gold plate engraved with the individual number

Inner tourbillon
• Inclined at a 30° angle, 1 rotation per minute

Outer tourbillon
• 1 rotation in 4 minutes
• Hand-bevelled and open-worked cage pillars
• Gold counterweight

Gearing
• Involute circle profile
• Conical gearing with profiled teeth

Displays
Hours and minutes
Small seconds
120-hours power reserve on a sector
4-minutes outer tourbillon rotation
60-seconds inner tourbillon rotation

Case
Ceramic
Diameter: 48.40 mm
Height: 17.77 mm
Caseback, bezel and caseband machined from a block of ceramic, polished and straight grained, hand-finished
Three-dimensional, variable geometry-shaped lugs
Engraving “Double Tourbillon 30°” and “Greubel Forsey”
Engraved individual number
Water-resistant 3 atm – 30 m – 100 ft (standard NIHS 92-20/SN ISO 22810:2010)
Crown: Ceramic with engraved GF logo

Dial
Multi-level synthetic sapphire hour-ring, galvanic growth hour indexes, engraved and lacquered inner tourbillon rotation indicator
Small seconds and power-reserve indicators in gold, blue finish

Hands
Hours and minutes in polished gold, with Super-LumiNova
Small seconds, power-reserve (red triangles)
Engraved synthetic sapphire 4-minutes indicator

Strap and clasp
Rubber
Titanium folding clasp, engraved with the GF logo