Technique

Brand  : Greubel Forsey
Collection  : Double Tourbillon 30°
Model  : Technique
Reference  :
Complement : White gold case
On sale : 2011

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  • Brand  : Greubel Forsey
    Collection  : Double Tourbillon 30°
    Model  : Technique
    Reference  :
    Complement : White gold case
    On sale : 2011
    List Price : On request
    Diameter : 47.50 mm
    Thickness : 16.84 mm
    Styles : Atypical
    High Horology
    Types : Hand-winding
    Calibre : GF 02s
    Complication : 4-Minute Indicator
    Small Seconds
    Power Reserve Indicator
    Case material : White gold
    Case peculiarity : Sapphire caseback
    Shape : Round
    Water-resistance : 30 meters
    Dial color : Transparent
    Display : Openworked hands
    Indexes : Baton-type
    Arabic numerals
    Glass : Sapphire
    Strap material : Alligator leather
    Strap color : Black
    Strap clasp : Folding buckle
    + More characteristics : 30 ° inclined Double Tourbillon
    Outer Tourbillon 4-minute rotation indicator

    Movement
    385 parts
    2 Tourbillon cages : 128 parts
    Weight of the two cages : 1.17 g
    43 jewels
    Olive-domed jewels in gold chatons
    Power reserve : 120 hours
    Frequency :
    21 600 vibrations/hour
    Four coaxial series-coupled fast-rotating barrels. equipped with a slipping spring to avoid excess tension
    Balance wheel free sprung balance with white gold mean-time screws
    Main Plates frosted nickel silver. polished bevelling. black chromed finish
    Bridges Frosted nickel silver. polished bevelling. nickel-palladium finish
    Involute circle profile
    Conical gearing with corrected profile
    Inner Tourbillon
    Outer Tourbillon

    Raised polished engraving of the name of the Invention on a hand-punched background
    Gold security screws
    Nameplates with text screwed to the sides
    Three-dimensional lugs secured
    Hand-engraved individual number
    Sapphire hour markers
    Small seconds and power-reserve indicators in gold

    Hand-sewn strap
    Folding clasp engraved with the Greubel Forsey logo

DESCRIPTION

  • Double Tourbillon Technique

    a Journey into the heart of the mechanism

    The Double Tourbillon Technique is an entirely original and innovative interpretation of Greubel Forsey’s first fundamental invention, the Double Tourbillon 30°. It is a timepiece with a boldly assertive character and a totally unique architecture.

    The Double Tourbillon Technique is a case study in precision mechanical watchmaking with the sapphire crystal acting as a portal through which to observe the mesmerising workings of the intricately interlocking parts. The eye is naturally drawn from one gear to the next, enabling careful observation of each separate element.

    A true work of technical art

    With the Double Tourbillon Technique, Robert Greubel and Stephen Forsey have created a truly stunning timepiece that is faithful to their philosophy of technical visibility. Each and every element of the mechanism is enhanced and displayed without overshadowing others.

    At the heart of the timepiece is the Double Tourbillon 30° mechanism ; however, to perpetuate the art of horology and contribute to its 21st century development, several additional technical elements have been added, including four fastrotating co-axial barrels guaranteeing 120 hours of autonomy. Admirers can even enjoy the sight of the barrels rotating while winding and unwinding. Coupled to these barrels is the visible spherical differential that drives the power reserve indicator. The hours are displayed on a transparent sapphire crystal ring fitted inside the inner circumference of the bezel to ensure full visual access to the astonishingly three-dimensional depth of the mechanism. Transparency is also reflected in the luminous openworked signature Greubel Forsey hands and both the power reserve indicator at 3 o’clock and sub-seconds dial at 9 o’clock are strikingly enhanced by their red triangular pointers.

    A powerful personal message

    By virtue of its fully visible mechanism, the Double Tourbillon Technique is a showcase for Robert Greubel and Stephen Forsey’s unique blend of technical mastery coupled with superb aesthetic finishing. The timepiece reinforces their commitment to absolute quality and fine craftsmanship, also expressed in the discreet message from the inventor watchmakers engraved around the case band.

    These highly personal words convey Robert Greubel and Stephen Forsey’s total dedication to their art and their contribution to horological advancement through fundamental research, the sophisticated architecture of their movements and their relentess pursuit of optimal timekeeping.
  • Double Tourbillon Technique

    a Journey into the heart of the mechanism

    The Double Tourbillon Technique is an entirely original and innovative interpretation of Greubel Forsey’s first fundamental invention, the Double Tourbillon 30°. It is a timepiece with a boldly assertive character and a totally unique architecture.

    The Double Tourbillon Technique is a case study in precision mechanical watchmaking with the sapphire crystal acting as a portal through which to observe the mesmerising workings of the intricately interlocking parts. The eye is naturally drawn from one gear to the next, enabling careful observation of each separate element.

    A true work of technical art

    With the Double Tourbillon Technique, Robert Greubel and Stephen Forsey have created a truly stunning timepiece that is faithful to their philosophy of technical visibility. Each and every element of the mechanism is enhanced and displayed without overshadowing others.

    At the heart of the timepiece is the Double Tourbillon 30° mechanism ; however, to perpetuate the art of horology and contribute to its 21st century development, several additional technical elements have been added, including four fastrotating co-axial barrels guaranteeing 120 hours of autonomy. Admirers can even enjoy the sight of the barrels rotating while winding and unwinding. Coupled to these barrels is the visible spherical differential that drives the power reserve indicator. The hours are displayed on a transparent sapphire crystal ring fitted inside the inner circumference of the bezel to ensure full visual access to the astonishingly three-dimensional depth of the mechanism. Transparency is also reflected in the luminous openworked signature Greubel Forsey hands and both the power reserve indicator at 3 o’clock and sub-seconds dial at 9 o’clock are strikingly enhanced by their red triangular pointers.

    A powerful personal message

    By virtue of its fully visible mechanism, the Double Tourbillon Technique is a showcase for Robert Greubel and Stephen Forsey’s unique blend of technical mastery coupled with superb aesthetic finishing. The timepiece reinforces their commitment to absolute quality and fine craftsmanship, also expressed in the discreet message from the inventor watchmakers engraved around the case band.

    These highly personal words convey Robert Greubel and Stephen Forsey’s total dedication to their art and their contribution to horological advancement through fundamental research, the sophisticated architecture of their movements and their relentess pursuit of optimal timekeeping.
  • Brand  : Greubel Forsey
    Collection  : Double Tourbillon 30°
    Model  : Technique
    Reference  :
    Complement : White gold case
    On sale : 2011
    List Price : On request
    Diameter : 47.50 mm
    Thickness : 16.84 mm
    Styles : Atypical
    High Horology
    Types : Hand-winding
    Calibre : GF 02s
    Complication : 4-Minute Indicator
    Small Seconds
    Power Reserve Indicator
    Case material : White gold
    Case peculiarity : Sapphire caseback
    Shape : Round
    Water-resistance : 30 meters
    Dial color : Transparent
    Display : Openworked hands
    Indexes : Baton-type
    Arabic numerals
    Glass : Sapphire
    Strap material : Alligator leather
    Strap color : Black
    Strap clasp : Folding buckle
    More characteristics : 30 ° inclined Double Tourbillon
    Outer Tourbillon 4-minute rotation indicator

    Movement
    385 parts
    2 Tourbillon cages : 128 parts
    Weight of the two cages : 1.17 g
    43 jewels
    Olive-domed jewels in gold chatons
    Power reserve : 120 hours
    Frequency :
    21 600 vibrations/hour
    Four coaxial series-coupled fast-rotating barrels. equipped with a slipping spring to avoid excess tension
    Balance wheel free sprung balance with white gold mean-time screws
    Main Plates frosted nickel silver. polished bevelling. black chromed finish
    Bridges Frosted nickel silver. polished bevelling. nickel-palladium finish
    Involute circle profile
    Conical gearing with corrected profile
    Inner Tourbillon
    Outer Tourbillon

    Raised polished engraving of the name of the Invention on a hand-punched background
    Gold security screws
    Nameplates with text screwed to the sides
    Three-dimensional lugs secured
    Hand-engraved individual number
    Sapphire hour markers
    Small seconds and power-reserve indicators in gold

    Hand-sewn strap
    Folding clasp engraved with the Greubel Forsey logo