Quadruple Tourbillon Secret
| Brand : | Greubel Forsey |
| Collection : | Quadruple Tourbillon |
| Model : | Quadruple Tourbillon Secret |
| Nber of pieces : | 8 |
| Complement : | Platinum |
| On sale : | 2012 |
PDF INDEX CARD
-
Brand : Greubel Forsey Collection : Quadruple Tourbillon Model : Quadruple Tourbillon Secret Nber of pieces : 8 Complement : Platinum On sale : 2012 List Price : On request Diameter : 43.50 mm Thickness : 16.11 mm Styles : Atypical High Horology Types : Hand-winding Calibre : GF03j Calibre distinction : Circular Graining Complication : Tourbillon Small Seconds Power Reserve Indicator Case material : Platinum Case peculiarity : Sapphire caseback Three-dimensional variable geometry-shaped lugs Polished bezel and centre band with hand-finished straight graining Crown in platinum with engraved and black lacquered GF logo Gold security screws Shape : Other Water-resistance : 30 meters Dial color : Silver Display : 4-minute and power-reserve in polished gold GGHour and minute and small second in black steel Indexes : Baton-type Arabic numerals Applied gold GF logo Glass : Domed Sapphire Strap material : Alligator leather Strap color : Black Strap clasp : Folding buckle + More characteristics : Movement
63 jewels
519 parts
Diameter : 36.40 mm
Thickness : 9.85 mm
Olived-domed jewels in gold chatons
Frequency :
21 600 vibrations/hour
Power reserve of 50 hours
Rapid rotating twin barrels (1 turn in 3.2 hours). one of which is equipped with a slipping spring to avoid excess tension
Free sprung variable-inertia balance with gold mean-time screws
(10 mm diameter)
Phillips terminal curve
Geneva-style stud
Main plates :
Nickel silver
Spotted with polished bevelling
Straight-grained flanks
Nickel-palladium treatment
Bridges :
Nickel silver
Frosted
Spotted with polished bevelling
Nickel-palladium treatment
Gold plate engraved with the individual number
Two steel tourbillon bridges (movement side) : hand-bevelled. flat black polished with polished countersinks
Two nickel silver tourbillon bridges
(dial side)
Gearing :
Involute circle profile
Conical gearing with corrected profiles
Tourbillon
Total weight of the cages : 2.35 g
Inner tourbillons :
Inclined at a 30° angle
1 rotation per minute
Outer tourbillons :
1 rotation in 4 minutes
Hand-bevelled and openworked cage pillars
1 gold counterweight per double cage
Case
Platinum 950
Lateral window with shaped synthetic sapphire crystal
Hand-engraved individual number
Raised polished engraving 'Quadruple Tourbillon' on a hand-punched background
Dial
Gold display sectors
Strap
Hand-sewn
Platinum 950 folding clasp
Hand-engraved with the Greubel Forsey logo
DESCRIPTION
- Greubel Forsey presents the Quadruple Tourbillon Secret
The Quadruple Tourbillon Secret represents a special link between Robert Greubel, Stephen Forsey and the collector. The ultimate refinement, this timepiece evokes to the passionate enthusiast the promise of an exceptional movement in which, a magical mechanical ballet plays out on a hidden stage visible only through the display back. The dial side redefines the expression of telling the time with its harmonious arrangement of multiple dials. Ultra-exclusive, the Quadruple Tourbillon Secret comes in a unique edition of eight pieces in 5N red gold and eight pieces in platinum.
Conceal . . .
The Quadruple Tourbillon Secret redetermines the expression of time which plays out its many paradoxes. A play of seduction in which fantastic mechanisms are subtly revealed by indications imperturbably bearing witness to their existence; a play in which a contemporary dynamic is created by overlapping curves within curves, in which symmetry gives way to asymmetry.
. . . to better reveal
The ultimate in refinement, the ballet of the tourbillons is visible only through the synthetic sapphire crystal display back. This private micro-mechanical performance becomes a witness to the bond that unites the owner with the values of Greubel Forsey. A bond further strengthened by the precious exclusivity of the Quadruple Tourbillon Secret.
The Quadruple Tourbillon
This timepiece houses Greubel Forsey’s second fundamental invention, the Quadruple Tourbillon : a reliable high-performance mechanism comprising four tourbillons configured in independent pairs, which are linked by a spherical differential that averages out any timing errors between the two regulators. Particularly in stable positions, timekeeping accuracy is improved by the Quadruple Tourbillon.
- Greubel Forsey presents the Quadruple Tourbillon Secret
The Quadruple Tourbillon Secret represents a special link between Robert Greubel, Stephen Forsey and the collector. The ultimate refinement, this timepiece evokes to the passionate enthusiast the promise of an exceptional movement in which, a magical mechanical ballet plays out on a hidden stage visible only through the display back. The dial side redefines the expression of telling the time with its harmonious arrangement of multiple dials. Ultra-exclusive, the Quadruple Tourbillon Secret comes in a unique edition of eight pieces in 5N red gold and eight pieces in platinum.
Conceal . . .
The Quadruple Tourbillon Secret redetermines the expression of time which plays out its many paradoxes. A play of seduction in which fantastic mechanisms are subtly revealed by indications imperturbably bearing witness to their existence; a play in which a contemporary dynamic is created by overlapping curves within curves, in which symmetry gives way to asymmetry.
. . . to better reveal
The ultimate in refinement, the ballet of the tourbillons is visible only through the synthetic sapphire crystal display back. This private micro-mechanical performance becomes a witness to the bond that unites the owner with the values of Greubel Forsey. A bond further strengthened by the precious exclusivity of the Quadruple Tourbillon Secret.
The Quadruple Tourbillon
This timepiece houses Greubel Forsey’s second fundamental invention, the Quadruple Tourbillon : a reliable high-performance mechanism comprising four tourbillons configured in independent pairs, which are linked by a spherical differential that averages out any timing errors between the two regulators. Particularly in stable positions, timekeeping accuracy is improved by the Quadruple Tourbillon.
-
Brand : Greubel Forsey Collection : Quadruple Tourbillon Model : Quadruple Tourbillon Secret Nber of pieces : 8 Complement : Platinum On sale : 2012 List Price : On request Diameter : 43.50 mm Thickness : 16.11 mm Styles : Atypical High Horology Types : Hand-winding Calibre : GF03j Calibre distinction : Circular Graining Complication : Tourbillon Small Seconds Power Reserve Indicator Case material : Platinum Case peculiarity : Sapphire caseback Three-dimensional variable geometry-shaped lugs Polished bezel and centre band with hand-finished straight graining Crown in platinum with engraved and black lacquered GF logo Gold security screws Shape : Other Water-resistance : 30 meters Dial color : Silver Display : 4-minute and power-reserve in polished gold GGHour and minute and small second in black steel Indexes : Baton-type Arabic numerals Applied gold GF logo Glass : Domed Sapphire Strap material : Alligator leather Strap color : Black Strap clasp : Folding buckle More characteristics : Movement
63 jewels
519 parts
Diameter : 36.40 mm
Thickness : 9.85 mm
Olived-domed jewels in gold chatons
Frequency :
21 600 vibrations/hour
Power reserve of 50 hours
Rapid rotating twin barrels (1 turn in 3.2 hours). one of which is equipped with a slipping spring to avoid excess tension
Free sprung variable-inertia balance with gold mean-time screws
(10 mm diameter)
Phillips terminal curve
Geneva-style stud
Main plates :
Nickel silver
Spotted with polished bevelling
Straight-grained flanks
Nickel-palladium treatment
Bridges :
Nickel silver
Frosted
Spotted with polished bevelling
Nickel-palladium treatment
Gold plate engraved with the individual number
Two steel tourbillon bridges (movement side) : hand-bevelled. flat black polished with polished countersinks
Two nickel silver tourbillon bridges
(dial side)
Gearing :
Involute circle profile
Conical gearing with corrected profiles
Tourbillon
Total weight of the cages : 2.35 g
Inner tourbillons :
Inclined at a 30° angle
1 rotation per minute
Outer tourbillons :
1 rotation in 4 minutes
Hand-bevelled and openworked cage pillars
1 gold counterweight per double cage
Case
Platinum 950
Lateral window with shaped synthetic sapphire crystal
Hand-engraved individual number
Raised polished engraving 'Quadruple Tourbillon' on a hand-punched background
Dial
Gold display sectors
Strap
Hand-sewn
Platinum 950 folding clasp
Hand-engraved with the Greubel Forsey logo