subject: Greubel Forsey Double Tourbillon 30° Edition Historique New Watch [print this page] To commemorate end of the Double Tourbillon 30 Contemporaine line at the end of 2010, Greubel Forsey has launched the exclusive Double Tourbillon 30 Edition Historique.
Greubel Forsey Double Tourbillon 30 Edition Historique features structured text on the dial and decorative hand-engraved plates on the sides of the case.
Since the debut of Greubel Forsey's adventure in 2004, there have been three lines of the Double Tourbillon 30: Contemporaine (Vision and Secret); Invention (Invention Piece 1); and Technique (Double Tourbillon 30 Technique). In 2010, Greubel Forsey will close the Double Tourbillon 30 Contemporaine line - thus ensuring its exclusivity - with this new Double Tourbillon 30 Edition Historique.
The complexity of this timepiece is visible in its intricate tourbillon system and gold dial with three sapphire crystal plates featuring the story of the Double Tourbillon 30 in structured three-dimensional text. Bevelled relief on the case side provides another distinctive feature.
The Edition Historique is available in two unique series of 11 pieces in 5N red gold and 11 pieces in platinum.
Greubel Forsey Double Tourbillon 30 Edition Historique Red Gold Version
Patented Movement
Movement dimensions
Diameter : 36.40 mm
Thickness : 9.65 mm
Number of parts
Complete movement : 303 parts
2 Tourbillon cages : 130 parts
Weight of the two cages : 1.17 g
Number of jewels 39
Olive-domed jewels in gold chatons
Power reserve 72 hours
Barrels Rapid rotating twin barrels (1 Turn in 3.2 hours), one of which equipped with a slipping spring so as to avoid excess tension
Balance wheel Variable-inertia with 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 circular graining and hand-bevelled, finished in "Nickel Palladium"
Bridges Nickel silver frosted and hand-bevelled, finished in "Nickel Palladium"
Gearing
Involute circle profile
Conical gearing with corrected profile
Inner Tourbillon : Inclined at a 30 angle, 1 rotation per minute
Outer Tourbillon : 1 rotation in 4 minutes
Hand-bevelled and openworked cage pillars
Gold counterweight
Displays
Hours and minutes
Small seconds
4-minute Outer Tourbillon rotation indicator
72-hour power reserve on a sector
Exterior
Case material and finishes
In 18k 5N red gold with convex sapphire crystal
Transparent back with convex sapphire crystal
Raised polished engraving of the name of the Invention on a hand-punched background
Gold security screws
Three-dimensional, variable geometry-shaped lugs
Four 5N red gold ingraved plates bearing text screwed to the caseband
Hand-engraved individual number on the caseback
Unique edition of 11 pieces in 5N red gold numbered from 165 to 175
Case dimensions
Diameter : 44.50 mm plates included, 43.50 on bezel
Thickness : 16.11 mm
Water resistance of the case 3 ATM - 30 M - 100 FT
Crown 5N red gold with engraved and black lacquered GF logo
Dial
18k gold dial, anthracite colour
Sapphire-crystal plates with 3D structured text
Hour markers in gold
Gold plate with the individual number
Gold security screws
Hours, minutes, small seconds, and power reserve in polished gold Sapphire 4-minute engraved indicator
Strap and clasp Hand-sewn black alligator.
18k 5N red gold folding clasp, hand-engraved with the Greubel Forsey logo
Greubel Forsey Double Tourbillon 30 Edition Historique Platinum Version
Patented Movement
Movement dimensions
Diameter : 36.40 mm
Thickness : 9.65 mm
Number of parts
Complete movement : 303 parts
2 Tourbillon cages : 130 parts
Weight of the two cages : 1.17 g
Number of jewels : 39
Olive-domed jewels in gold chatons
Power reserve 72 hours
Barrels Rapid rotating twin barrels (1 Turn in 3.2 hours), one of which equipped with a slipping spring so as to avoid excess tensionBalance wheel Variable-inertia with 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 circular graining and hand-bevelled, finished in "Nickel Palladium"
Bridges Nickel silver frosted and hand-bevelled, finished in "Nickel Palladium"
Gearing
Involute circle profile
Conical gearing with corrected profile
Inner Tourbillon : Inclined at a 30 angle 1 rotation per minute
Outer Tourbillon : 1 rotation in 4 minutes
Hand-bevelled and openworked cage pillars
Gold counterweight
Displays
Hours and minutes
Small seconds
4-minute Outer Tourbillon rotation indicator
72-hour power reserve on a sector
Exterior
Case material and finishes
In platinum 950 with convex sapphire crystal
Transparent back with convex sapphire crystal
Raised polished engraving of the name of the Invention on a hand-punched background
Gold security screws
Three-dimensional, variable geometry-shaped lugs
Four platinum ingraved plates bearing text screwed to the caseband
Hand-engraved individual number on the caseback
Unique edition of 11 pieces in platinum numbered from 176 to 186
Case dimensions
Diameter : 44.50 mm plates included, 43.50 on bezel
Thickness : 16.11 mm
Water resistance of the case 3 ATM - 30 M - 100 FT
Crown Platinum with engraved and black lacquered GF logo
Dial
18k gold dial, anthracite colour
Sapphire-crystal plates with 3D structured text
Hour markers in gold
Gold plate with the individual number
Gold security screws
Hands
Hours, minutes, small seconds, and power reserve in polished gold
Sapphire 4-minute engraved indicator
Strap and clasp Hand-sewn black alligator.
Platinum folding clasp, hand-engraved with the Greubel Forsey logo
Greubel Forsey Double Tourbillon 30 Edition Historique New Watch
