GREUBEL FORSEY – Quantieme Perpetuel a Equation Tourbillon 24 Secondes

GREUBEL FORSEY – Quantième Perpétuel à Équation Tourbillon 24 Secondes NEW


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Greubel Forsey has pushed beyond the previous limits of watchmaking, with no fewer than six major inventions, and a focus on ground-breaking inclined tourbillons.

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Now it’s time to reinvent the horological complication in the original sense of the term, and to show that in this area as well, watchmaking is in a perpetual state of evolution.

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The technically and ergonomically innovative Double Balancier 35° and GMT provided the springboard for this new take on the time-honoured perpetual calendar.

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ÉQUATION in white gold measures 43.5mm in diameter and is 16mm high. It includes a fourth patentthe 24-second Tourbillon inclined at 25°,.

The balance oscillates at 21,600v/h and the power reserve is 72 hours from two fast-rotation superimposed barrels that feature protection against excess tension. This leaves space for a large free-sprung balance.

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The movement diameter is 37mm (16.41 lignes), height 9.55mm and comprises 570 components and 65 jewels.

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Technical Specifications 

Quantième Perpétuel à Équation Tourbillon in white gold
Big directional Perpetual calendar, Equation of Time Tourbillon 24 Seconds
Hours, minutes, small seconds - indicator of power reserve
Day, date, month, calendar year, a leap year indicator, day / night (24h with red zone)
Selection function - equation of time - indicating the months, seasons, solstices and equinoxes
 Mouvement 
Dimensions of the movement:
    Diameter: 36.40 mm
    Thickness: 9.60 mm 
Number of components:
    Full motion 570 components
    Tourbillon carriage 86 components
    Weight of the cage: 0.37 g 
Number of jewels: 65
    Ruby mid-ice in gold chatonsChronometer 
Power reserve: 72 hours 
Barrel:
    Two coaxial barrels in Rapid rotating (1 turn in 3.2 hours), equipped with a slipping spring to avoid surges 
Balance:
    A manipulated variable inertia with gold screws (diameter 10 mm) 
Frequency: 21,600 vibrations / hour 
Spiral:
    Phillips terminal curve
    Piton de Genève 
Turntables: Nickel silver, grained, polished bevelling, pearl 
Bridges:
    Grained nickel silver and beaded, nickel-palladium treatment, polished bevelling
    4 pads in gold, engraved, one with the Individual number.
    Polished steel tourbillon bridge
    Mobile encoder sapphire bridges 
Tourbillon cage:
    Inclined at 25 °, one rotation in 24 seconds
    Cage pillars Avional
    Titanium bridges
    Gold balance weight 
Workings:
    Involute profile
    Tangential inclined gear with profiled teeth on fixed wheel and escape pinion 
Dial side views:
    Hours and minutes
    Small second
    Sectoral indicator of 72-hour power reserve
    Indicator of the day, date, month
    Indicator leap years
    Day / night (with 24 red zone)
    Indicator function selection 
Bottom side views:
    Year indicator by discs.
    Equation of time with indications of the seasons, solstices and equinoxes 
Dressing Housing:
    White gold with asymmetrical convex sapphire crystal
    Transparent back with sapphire asymmetrical flat ice
    Polished bezel and satin-finished by hand breadth
    Horned geometry in three dimensions
    Carvings in relief, polished "QP to EQUATION" and "GREUBEL FORSEY" amid hand-hammered
    Individual number engraved by hand on the bottom
    Gold security screws 
Case dimensions:
    Diameter: 43.50 mm
    Height: 16.00 mmSealing of housing:
    Waterproof 3 ATM - 30 m - 100 ft (NIHS 92-20 / SN ISO 22810: 2010) 
Push out crown:
    White gold with GF logo engraved and black lacquered 
Dial:  Dial multilevel gold 
Hands:
    Hours and minutes in polished gold with SuperLumiNova
    Small second polished gold
    Power reserve polished gold
    Needle leap years polished blackened steel 
Strap and buckle:
    Black alligator, hand-stitched
    Clasp in white gold, Greubel Forsey logo engraved by hand

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For further information: 
Communication Department 
press@greubelforsey.com – +41 79 194 2884
Eplatures-Grise -16 P.O. Box 670 2301
La Chaux-de-Fonds- Switzerland
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