Greubel Forsey Art Piece 2 – Edition 2
The expression Art of Invention testifies to a forward-looking philosophy that has long been a driving force for Robert Greubel and Stephen Forsey, both in the field of scientific research as applied to fine watchmaking, and in that of aesthetic innovation. This art of invention is particularly present when it comes to the stunning Art Piece series. The Greubel Forsey Art Piece 2 – Edition 2 pushes back the boundaries of creativity even further.
In this first Art Piece produced without an optical system (and therefore without a micro-sculpture or nano-engraving), the Double Tourbillon 30° appears to be a moving sculpture.
Here, the indication of time is secondary: a push-piece that controls a bistable mechanism needs to be activated in order to obtain an indication of the hours and minutes.
The power reserve takes precedence over all other information with the aim of altering our relationship with temporality: it is not the current time that we contemplate, but the time remaining. This subtle metaphysical shift is naturally reminiscent of memento mori.
The Art Piece 2 – Edition 2, signed by Robert Greubel and Stephen Forsey, will be realised in a limited edition of only a few pieces per year.
Technical details
Model: Greubel Forsey Art Piece 2 – Edition 2
In white gold – Millésimé
Movement specifications
Hand-wound movement with patented tourbillon
Double Tourbillon 30°
Hours and minutes on demand
Power-reserve
Movement dimensions
Diameter: 36.40 mm
Thickness: 10.90 mm
Number of parts
Complete movement: 412 parts
Two tourbillon cages: 130 parts
Total weight of the two cages: 1.13 g
Number of jewels
35
Olived-domed jewels in gold chatons
Chronometric power reserve
72 hours
Barrels
Two series-coupled fast-rotating barrels, one of which is equipped with a slipping spring to avoid excess tension
Balance wheel
Variable-inertia 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, with straight-grained flanks, nickel-palladium treatment
Bridges
Nickel silver, frosted and spotted with polished bevelling and countersinks, straight-grained flanks, nickel-palladium treatment
Founders’ signature in relief by galvanic growth
Flat black polished steel tourbillon bridges, hand-polished bevelling and countersinks
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
Gearing
Involute circle profile
Conical gearing with profiled teeth
Displays
Hours and minutes on demand on discs
72 hours sectorial power reserve
Exterior
Case
In white gold with convex synthetic sapphire crystal
Transparent back with asymmetrical synthetic sapphire crystal
Three-dimensional, variable geometry-shaped lugs
Raised polished engraving «Art Piece 2» and «Greubel Forsey» on a hand-punched background
Gold security screws
Polished bezel, caseband with hand-finished straight graining
White gold plates, engraved, hand-finished with texts, screwed to the caseband
White gold pusher, hand-punched background
Hand-engraved individual number
Case diameter: 44.00 mm
Case height: 16.18 mm
Water resistance: 3 atm – 30 m – 100 ft (standard NIHS 92-20/SN ISO 22810:2010)
Crown: In white gold with engraved and black lacquered GF logo
Dial
Multi-level gold dial, with window, relief-engraved zone of text, blue PVD treatment
Engraved and polished applied gold plates highlighting the indications
Enhanced power reserve indication
Metallised synthetic sapphire shutter, operated by a bistable system hiding or revealing the time indications
Hands
Power-reserve in polished gold
Strap and clasp
Hand-sewn alligator
White gold folding clasp, hand-engraved with the GF logo
