Novedad SIHH 2011: Greubel Forsey Invention Piece 2
Sólo 11 piezas en platino y 11 piezas en oro rosa.
Aquí está la maravilla:
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Cuadruple tourbillon, horas y minuos, pequeño indicador de segundos e indicador de reserva de marcha.
Movement dimensions
• Diameter: 37.0 mm
• Cage diameter: 36.40 mm
• Thickness : 11.87 mm
Number of parts
• Complete movement: 594 composants
• 1 double tourbillon cage: 129 composants
• Weight of one double cage: 1.17 g
Number of jewels
• 64
• Olived-domed jewels in gold chatons
Power reserve
56 hours
Barrels
• Rapid rotating triple barrels (1 turn in 3.2 hours)
• equipped with a slipping spring to avoid excess tension
Balance wheel
Free sprung balance 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, spotted nickel-palladium finish, hand bevelled, straight-grained flanks, polished counter-sinks
Bridges
• Nickel silver bridge, frosted, spotted with polished bevelling, nickel-palladium finish
• Gold nameplate bearing the individual number of the timepiece
• 4 steel Double Tourbillon bridges hand-bevelled, flat black polished with polished counter-sinks
Gearing
• Involute circle profile
• Conical gearing with corrected profiles
Inner Tourbillon
Inclined at a 30°angle, 1 rotation per minute
Outer Tourbillon
• 1 rotation in 4 minutes
• Hand-bevelled and openworked cage pillars
• 1 gold Greubel Forsey counterweight per cage
Displays
• Hours and minutes
• Small seconds sub dial (mean performance)
• 56-hour power reserve on a sector
• Tourbillon rotation sapphire crystal indicator (outer cage) in 4 minutes at 1 o'clock
Exterior
Case
• Platinum 950 or 18k 5N red gold with asymmetrical convex sapphire crystal
• Transparent back with asymmetrical convex sapphire crystal
• Lateral window with shaped sapphire crystal
• Gold security screws
• Polished bezel and centre band with hand-finished straight graining
• Hand-engraved individual number
• Raised engraving of the name of the Inventors on a hand-punched background
• Unique edition of 11 pieces in platinum and 11 pieces in 5N red gold
Case dimensions
• Diameter: 43.50 mm
• Thickness: 16.28 mm
Water resistance of the case
3 atm - 30 m - 100 ft
Crown
Platinum or 5N red gold with engraved and black lacquered GF logo
Dial
• 22k gold hour indicators with red triangle
• 22k gold Greubel Forsey initials in centre
Hands
• Minute-indicator: rotating disc with fixed blue triangle
• Small second in flame-blued polished steel
• Power-reserve in flame-blued polished steel
• Sapphire crystal 4-minute indicator
Strap and clasp
• Hand-sewn black alligator
• Platinum 950 or 18k 5N red gold folding clasp, hand-engraved with the Greubel Forsey logo
