Greubel Forsey – Signature 1 Tourbillon

GREUBEL FORSEY – Signature 1 Tourbillon Silvered dial White Gold Unique Edition NEW

Equation solved

Greubel Forsey continues in its quest for new chal-lenges. How does one combine simplicity and extreme sophistication? It took six years of study tosolve this delicate equation! The Signature 1, a Time-piece featuring pure lines, is the solution. It will alsobroaden our circle of enthusiastic collectors.

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For each of these new Signature creations, one tal-ented watchmaker will elaborate his or her Time-piece within Greubel Forsey’s universe. Drawing onour resources such as components, the watchmakerwill operate following Greubel Forsey’s philosophy,and benefit from the skills and expertise specific toour watchmaking Atelier.

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This framework will guar-antee our characteristic standards of excellence,both in terms of technical craftsmanship and aes-thetics. The watchmaker will therefore express himor herself within this structure, while enjoying a con-siderable amount of freedom, particularly regardingtechnical, architectural and decorative aspects of theTimepiece. This watchmaker will co-sign the creationwith Robert Greubel and Stephen Forsey.

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This new adventure once again testifies to Robert Greubel and Stephen Forsey’s commitment to in-scribe their approach of contemporary watchmakingwith a project aimed at preserving the heritage ofwatchmaking excellence by passing on knowledge.The “Naissance d’une Montre” project is also aimedat perpetuating expertise that has been passed downthrough generations.

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The Signature project intendsto further extend this desire to convey our particularvision of fine watchmaking to future generations: thatof Timepieces primarily produced by visionary menand women, served by excellent technology and expertise, which must be preserved.

The creation – Signature 1

Didier J.G. Cretin – a brilliant watchmaker and long-time team member at Greubel Forsey – is introducing this new line with a unique and original Timepiece, the Signature 1. For the first time in the history of Greubel Forsey, he has created a manually wound watch with three hands, featuring an exclusively designed Greubel Forsey balance wheel and a gold dial.

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The hands are finished and countersunk by hand. This Timepiece will be released in a unique edition of 33 pieces in gold and platinum. In addition to this, 33 steel-cased pieces are available by advance order, thereby maintaining and reaffirming the rarity of our Timepieces.


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Technical Specifications

Collection: Signature 1 Tourbillon / Unique Edition to 11 exemplaires

11 pieces in white gold, 11 pieces in 5N red gold,
11 pieces in platinum and 33 pieces in steel

Hand-wound Calibre GFS1 movement Greubel Forsey timepiece with 3 hands (hour, minute and small second) co-created with Didier J. G. Cretin • GREUBEL FORSEY balance wheel system

Ref: GFS1
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Movement
Movement dimensions
• Diameter : 34.40 mm
• Thickness : 7.40 mm
Number of parts
• Complete movement : 190 parts
• Escapement platform : 61 parts
Number of jewels
• 21
• Olived-domed jewels in gold chatons
Power reserve • 54 hours
Barrel • Barrel equipped with a fixed mainspring-bridle
Winding system with sliding click
• Black polished click incorporated into the barrel bridge
• Snailed click wheel and ratchet, polished and bevelled ratchet teeth
Balance
• In-house variable-inertia with 6 gold mean-time screws (12.60 mm diameter)
Frequency • 18’000 vibrations/hour
Balance spring
• Phillips terminal curve
• Geneva-style stud
Main plates
• Nickel silver, frosted and spotted, with straight-grained flanks, polished bevelling and countersinks, large polished inclined facets, black PVD treatment
Bridges
• Nickel silver, Côtes de Genève, frosted and spotted, with straight-grained flanks, polished bevelling
and countersinks, large polished inclined facets, nickel-palladium treatment
• Circular-grained steel barrel bridge, hand-polished bevelling and countersinks
• Gold plate engraved with the individual number
Escapement platform
• Straight graining steel escapement platform,
hand-polished bevelling and countersinks
• Polished steel pillars
• Flat black polished steel balance wheel bridge,
hand-polished bevelling and countersinks
Gearing • Involute circle profile
Displays
• Hours and minutes
• Small seconds
Exterior
Case
• In 18k gold, platinum 950 or steel with convex synthetic sapphire crystal
• Transparent back with synthetic sapphire crystal
• Raised engraving “Signature 1” and “Greubel Forsey”
• Gold security screws
• Polished and straight-grained bezel
• Polished and straight-grained caseband
• Hand-engraved individual number
(for the 18k gold and platinum 950 versions)
Case dimensions
• Diameter : 41.40 mm
• Thickness : 11.70 mm
Water resistance of the case
• Water-resistant 3 atm - 30 m - 100 ft
(standard NIHS 92-20/SN ISO 22810:2010)
Crown • In 18k gold, platinum 950 or steel with engraved and black lacquered GF logo
Dial
• 18k gold and steel versions : white silvered gold, GREUBEL FORSEY, hours and minutes in black, diamond finished bevel
• Platinum 950 version : black-anthracite gold dial, GREUBEL FORSEY, hours and minutes in white,
diamond finished bevel
• Small second in white silvered gold, diamond finished bevel
Hands
• 18k gold and steel versions : hour and minute hands in polished blued steel, hand-polished
countersinks
• Platinum 950 version : hour and minute hands in polished gold, hand-polished countersinks
• Small second in polished blued steel, hand-polished countersink
Strap and clasp
• Hand-sewn, alligator and leather
• 18k gold, platinum 950 or steel pin buckle, hand-engraved Greubel Forsey logo
(for the 18k gold and platinum 950 versions)


Year: 2016

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Press release
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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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