GREUBEL FORSEY – QP Balancier Calendar Gold Edition

GREUBEL FORSEY – QP Balancier Perpetual Calendar White Gold 45.1 mm Limited Edition 2025

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The Perpetual Calendar, Without Compromise 

The new QP Balancier by Greubel Forsey is the purest, most intuitive perpetual calendar ever – uniting 12 functions and indications in a single crown, with no additional pushers, no crown positions to memorise, and no risk at any time. Powered by the patented Mechanical Computer and multiple security systems, it adjusts instantly in either direction, restarts instantly after months unwound, and stays programmed until the year 2100. Featuring our 30° inclined balance wheel, it is limited to 22 timepieces in white gold.

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For centuries, the perpetual calendar has been revered as one of watchmaking’s most prestigious complications. Yet it often came with compromises: fragile mechanisms, cryptic interfaces, and laborious resets whenever the watch stopped.

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Greubel Forsey set out to change that. In 2015, the QP à Équation introduced the Mechanical Computer – our seventh Fundamental Invention – a 25-part mechanical brain that “knows” the Gregorian calendar rules, ensuring perfect synchronisation of every display.

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The new QP Balancier distills this breakthrough into its most refined form. It unites 12 indications – hours, minutes, seconds, power reserve, day, date, month, leap year, day/night, 24-hour display, calendar year, and the patented function selector – all operated by a single crown for effortless time and calendar setting. The result is the only perpetual calendar that requires no handbook to operate.

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Hidden pushers? Multiple crown positions? Forward-only adjustment? Lengthy resets? Every limitation of traditional perpetual calendars has been eliminated. The QP Balancier turns freely in both directions at any time of day, corrects instantly even after months unwound, and locks safely during the vulnerable midnight changeover, with a visible red zone for extra security. Programmed correctly until February 28, 2100, it needs only a simple Atelier adjustment to remain accurate for another century.

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Aesthetically, the QP Balancier embodies purity. Its multi-level gold dial presents day, large date, and month in a single intuitive line, flanked by leap year and day/night indicators. Every element is reduced to the essentials for instant legibility and visual harmony.

The experience goes beyond sight: the quick-correction mode transforms date-setting into a tactile pleasure, each crisp jump through the crown letting the wearer feel the mechanism come alive – a moment of connection between human and machine.

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The 45.1 mm white gold case, just 14.75 mm high, houses the 12.6 mm balance wheel inclined at 30°, a high-mass, variable-inertia balance with gold mean-time screws for superior chronometric performance.

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Each of its 612 components is hand-finished to the Atelier’s uncompromising standards – bevelled, black-polished, frosted, or straight-grained – with twin fast-rotating barrels delivering a 72-hour chronometric power reserve.

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Limited to 22 timepieces in white gold, the QP Balancier is the most practical, reliable, and user-friendly perpetual calendar ever created – without a single compromise in chronometry, craftsmanship, or beauty.

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TECHNICAL SPECIFICATIONS  

Collection  QP Balancier 

Name   Greubel Forsey QP Balancier in White Gold

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QP Balancier
In white gold
Limited edition
Hand-wound movement with 2 patents

• Bidirectional perpetual calendar 
• day, date, month, calendar year, leap year, day-and-night
• function selector 
• 30° inclined Greubel Forsey balance wheel system
• hours and minutes • small seconds • power-reserve

 

 CASE
    Material: 18-carat white gold with high domed synthetic sapphire crystal
    Diameter: 44.70mm
    Bezel diameter: 45.10mm
    Height: 10.55mm
    Height on synthetic sapphire crystals: 14.75mm
    Crown in white gold with engraved GF logo
    Transparent back with high domed synthetic sapphire crystal
    Hand-polished bezel, caseband with hand-finished straight graining
    Gold security screws
    Raised polished engraving “QP Balancier” and “Greubel Forsey” on a hand-punched background
    Water-resistant to 3atm - 30m - 100ft
DIAL
    Multi-level in gold, anthracite colour
    Gold perpetual calendar aperture with polished raised engraving
    Leap year, day-and-night, small second, power-reserve and function selector indicators in gold, circular-grained, straight-grained flanks with polished bevel
Hands
    Hours and minutes in polished steel, with Super-LumiNova
    Power-reserve and leap year in polished steel, hand-polished countersink, flat black polished head 
DISPLAYS
Hours and minutes
Small seconds on disc
72-hours power reserve on a sector
Day of the week, large date and month
Leap year
Day-and-night on disc (with red safety zone)
Function selection (QP calendar or HM time adjustment)
Calendar year (Back display)
MOVEMENT
    Hand-wound movement with 2 patents
    Diameter: 40.80mm
    Thickness: 10.40mm
    Movement parts: 612
    Escapement platform: 59 parts
    Number of jewels: 78
    Olived-domed jewels in gold chatons
    Two coaxial series-coupled fast-rotating barrels (1 turn in 3.2 hours), one of which is equipped with a slipping spring to avoid excess tension
    Balance wheel: In-house variable-inertia with 6 gold mean-time screws (12.60mm diameter)
    Frequency: 21'600 vph, 3 Hz
    Power reserve of 72 hours
Functions
    Hours and minutes
    Small seconds on disc
    72-hours power reserve on a sector
    Day of the week, large date and month
    Leap year
    Day-and-night on disc (with red safety zone)
    Function selection (QP calendar or HM time adjustment)
    Calendar year (Back display)
STRAP and CLASP
    Hand-sewn textured rubber
    White gold folding clasp, hand-engraved with the GF logo

•  🔰Limitation 
• Limited Editionof 22 pieces.

🔴 Price  On request💰first pieces will be delivered this year. 

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Press Release - 2025
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GREUBEL FORSEY SA
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
+41 32 925-4545
+41 32 925-4502
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GREUBEL FORSEY – Nano Foudroyante Tourbillon Chronograph White Gold Edition

GREUBEL FORSEY – Nano Foudroyante Tourbillon Chronograph White Gold 37,9 mm Limited Edition 2025

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WE ARE BACK WITH A PARADIGM-SHIFTING CREATION.

Greubel Forsey unveils the first official limited edition of its Nano Foudroyante: a breakthrough timepiece born from years of research, now matured beyond its Experimental Watch Technology (EWT) origins.

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Limited to just 22 timepieces, this creation marks a significant new chapter in Greubel Forsey's 10th Fundamental Invention.

FROM PROTOTYPE TO TIMEPIECE

Originally presented in 2024 as a commemorative EWT edition, the Nano Foudroyante was Greubel Forsey’s most technically radical concept to date. Today, it has evolved into a fully realized and independent creation – no longer tethered to an anniversary or prototype designation.

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The new Nano Foudroyante is crafted entirely in white gold, replacing the original combination of white gold and tantalum. It presents a different architectural identity: the gold dial is now finished in rhodium with a blue minute track, while the hands are rendered in blued steel with matching cannon pinions. 

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The foudroyante dial itself is now white with transferred numerals, enhancing legibility and echoing the crisp visual language of the tourbillon aperture. A blue textured rubber strap completes the aesthetic – a clear evolution from the original edition, and a declaration of this timepiece’s own distinct personality.

NANOMECHANICS: REINVENTING THE POSSIBLE

At the heart of this timepiece lies a disruptive idea: nanomechanics – the control of energy at the nanojoule scale inside a mechanical movement. This paradigm shift enables the Nano Foudroyante to operate its eponymous complication using just 16 nanojoules per jump, compared to 30 microjoules in traditional designs – a staggering reduction by a factor of 1,800.

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The complication divides each second into six segments using a lightweight, red-treated hand that rotates once per second, driven directly by the oscillations of the 3Hz balance wheel. There is no traditional gear train; instead, a minimalist series of low-inertia wheels efficiently distributes energy through the movement.

A COMPACT AND REFINED ARCHITECTURE

The Nano Foudroyante mechanism is embedded within Greubel Forsey’s first flying tourbillon, creating a visual and technical centerpiece. The foudroyante’s dial remains permanently oriented to twelve o’clock, even as the tourbillon rotates – ensuring optimal readability.

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The timepiece features a hand-wound flyback with 2 patents, totaling 428 components (including 142 for the tourbillon cage). Despite this complexity, the movement measures just 31.60mm in diameter and fits within a 37.90mm white gold case – Greubel Forsey’s most compact ever.

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The case is fitted with a high-domed sapphire crystal, straight-grained finishing on the caseband, and a transparent caseback. Subtle engravings – “Nano Foudroyante” and “Greubel Forsey” – stand out in polished relief over a hand-hammered background.

A NEW CHAPTER, FULLY REALISED

This timepiece embodies maturity and intent, created for 22 collectors who will experience Greubel Forsey’s most energy-efficient, compact, and conceptually advanced timepiece to date.

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 TECHNICAL DETAILS  

 Model:  Nano Foudroyante Tourbillon Chronograph White Gold

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Nano Foudroyante
In white gold
Limited Edition
Hand-wound chronograph movement with 2 patents

• Flying tourbillon with Nano Foudroyante • hours and minutes • small seconds
• 60-second tourbillon rotation • chronograph seconds (trotteuse)
• 60-minute counter • flyback function  

MOVEMENT

MOVEMENT DIMENSIONS
• Diameter: 31.60mm
• Thickness: 9.40mm
NUMBER OF PARTS
• Movement: 428 parts
• Tourbillon cage: 142 parts
• Weight of the cage: 0.835g
NUMBER OF JEWELS • 53
• Olived-domed jewels in gold chatons
CHRONOMETRIC POWER RESERVE
• One full day, with chronograph engaged
BARRELS
• Fast rotating barrel (1 turn in 3.7 hours) with a fixed main spring bridle
BALANCE WHEEL
• Variable-inertia with gold mean-time screws (10mm diameter)
FREQUENCY • 21’600 vibrations/hour
BALANCE SPRING
• Phillips terminal curve
• Geneva-style stud
BRIDGES AND MAIN PLATES
• Nickel silver, frosted and spotted with polished bevelling and countersinks, straight-grained flanks, nickel-palladium treatment
• Straight-grained and flat black polished steel chronograph mechanism, polished bevelling, straight-grained flanks
• Three-dimensional column wheel, frosted and circular-grained, polished columns
• Central seconds wheel, circular-grained, polished bevelling with relief-engraved texts
• Gold plate, circular-grained, with engraved limitation number
TOURBILLON
• Flying Tourbillon with embedded Nano Foudroyante mechanism
• Foudroyante dial, constant vertical indication
• Titanium cage bridges, polished bevelling, straight-grained flanks, with engraved GF logo
• Platinum counterweight
GEARING
• Involute circle profile
• Micro-module with reduced play
DISPLAYS
• Hours and minutes
• Small seconds
• 60-second tourbillon rotation
• Foudroyante, sixth of a second
CHRONOGRAPH
• 60-second flange
• 60-minute counter, semi-instantaneous

EXTERIOR 

CASE

• In white gold with high domed synthetic sapphire crystal
• Hand-polished bezel, caseband with hand-finished straight-graining
• Transparent back with high domed synthetic sapphire crystal
• Raised polished engraving “Nano Foudroyante” and “Greubel Forsey” on a hand-punched background
• Gold security screws
DIMENSIONS
• Caseband diameter: 37.90mm
• Bezel diameter: 38.30mm
• Case height: 10.49mm
• Height on synthetic sapphire crystals: 14.34mm
WATER RESISTANCE OF THE CASE • Water-resistant 3atm - 30m - 100ft
(standard NIHS 92-20/SN ISO 22810:2010)
CROWN AND PUSHERS
• Crown with pusher, in white gold, engraved GF logo
• Pusher in white gold, hand-polished

DIAL

• Multi-level in gold, rhodium-coloured, minute-circle with blue finish,
small seconds and chronograph minutes counter with polished bevel,
engraved and lacquered indications, with a visual opening for the tourbillon
• Foudroyante in light alloy, polished bevel with flat black polished central plate.
HANDS
• Hours and minutes in polished blued steel with Super-LumiNova, hand-polished countersink, flat black polished head
• Small seconds and chronograph hands in polished blued steel, hand-polished countersink, flat black polished head
• Tourbillon and Foudroyante in light alloy, red treatment

STRAP AND CLASP

• Hand-sewn textured rubber
• White gold pin buckle, hand-engraved GF logo

🔰 Limitation 
Limited Edition ✅ Only ❱❱❱ 22 pieces.

🔴 Price  CHF 465'000 (excl. taxes)💰

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Press Release - 2025
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-------------------------------------------------
GREUBEL FORSEY SA
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
+41 32 925-4545
+41 32 925-4502
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GREUBEL FORSEY – Balancier Contemporain Steel Edition

GREUBEL FORSEY – CONVEXE Balancier Contemporain Steel 39.6 mm Limited Edition 2025

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Greubel Forsey presents the final edition of the Balancier Contemporain, marking the definitive conclusion of this iconic calibre. 

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This timepiece is housed in a 39.6 mm stainless steel case – a material that has only been used twice before in the history of the Atelier.  

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Limited to just 33 timepieces, this edition will be built and delivered exclusively in 2025. Once complete, the Balancier Contemporain calibre will be permanently retired and will never made again.

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More than a final edition, this stainless steel interpretation is a statement of purpose – it is the rarest and most exclusive case material in the Atelier’s repertoire. Its presence here is deliberate: to honour the legacy of the Balancier Contemporain with purity, restraint, and resolve.

Compact, yet monumental

When it was introduced, the Balancier Contemporain redefined expectations – delivering the full Greubel Forsey experience in just 39.6mm. This final edition preserves that feat of engineering and design. Under its high-domed sapphire crystal, the gold dial reveals a rich interplay of levels, textures, and finishes. 

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A sunburst blue hour-ring frames the composition, while a deep blue minute-circle and sectorial indications for the small seconds and power reserve create both contrast and clarity. 

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A large visual opening draws the eye to the in-house 12.6mm balance wheel, suspended above a flat, black-polished gold plate that provides visual depth and dramatic reflection.

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The movement is composed of 256 parts, each hand-finished to the highest standard. The bridges are in nickel silver, frosted and spotted by hand, with perfectly polished bevels and countersinks, straight-grained flanks, and a subtle blue treatment unique to this edition. 

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The balance wheel bridge is flat black polished steel – one of the most demanding finishes in haute horlogerie – with hand-polished bevels that reflect light beautifully. The balance wheel itself is mounted above a flat black-polished gold plate, a surface so refined it becomes both technical and architectural. 

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The Balancier Contemporain in stainless steel is a definitive conclusion – and a confident beginning. 

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TECHNICAL SPECIFICATIONS 

Balancier Contemporain
In stainless steel
Limited edition
Hand-wound movement

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 Timepiece with four hands • hours and minutes • small seconds
• power-reserve • Greubel Forsey balance wheel system • stop balance

CASE
    Material: Stainless steel
    Hand-polished bezel, caseband with hand-finished straight-graining
    Three-dimensional, variable geometry-shaped lugs
    Diameter: 39.6 mm
    Thickness: 12.25 mm
    Crown: Stainless steel with engraved and black lacquered GF logo
    Transparent back with high domed synthetic sapphire crystal
    Raised polished engraving “Balancier” and “Greubel Forsey” on a hand-punched background
    Gold security screws
    Water-resistant to 30 meters
DIALand HANDS
    Multi-level in gold
    Sunburst blue finish hour-ring, with a visual opening for the balance wheel, minute-circle with deep blue finish, engraved and white lacquer filled, polished bevel
    Small seconds, engraved and lacquered with polished bevel
    Power-reserve, engraved and lacquered, hand matt lapped
    Hands: Hours, minutes, small seconds and power-reserve in polished steel, hand-polished countersinks
MOVEMENT
    Hand-wound movement
    Diameter: 32.40 mm
    Thickness: 9.20 mm
    Number of parts: 256
    Number of jewels: 33
    In-house variable-inertia with 6 gold mean-time screws (12.60mm diameter)
    Frequency: 3 Hz, 21'600 vph
    Power reserve of 72 hours
Functions/Indications
    Hours and minutes
    Small seconds
    72-hours power reserve on a sector
STRAP and CLASP
    Hand-sewn textured rubber
    Stainless steel pin buckle, engraved GF logo

🔰Limitation 
Limited Edition of 33 pieces.

 

🔴 Price CHF 220,000 💰 (without VAT), first pieces will be delivered this year. 

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Press Release - 2025
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GREUBEL FORSEY SA
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
+41 32 925-4545
+41 32 925-4502
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GREUBEL FORSEY – CONVEXE GMT Balancier Convexe Edition

 

GREUBEL FORSEY – CONVEXE GMT Balancier Convexe Titanium Limited Edition 2025

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 GREUBEL FORSEY UNVEILS
THE NEW GMT BALANCIER CONVEXE  

Today, Greubel Forsey has unveiled the new GMT Balancier Convexe. As the Earth takes centre stage within a newly reimagined amphitheatre, the hours, minutes, seconds, second time zone, and universal time indications become both companions and spectators to its quiet revolution.

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The new GMT Balancier Convexe replaces its predecessor entirely – not as a variation, but as a complete reinterpretation. With a redesigned case, an integrated power reserve, and enhanced ergonomics, it becomes the purest expression of our GMT complication to date – and the only GMT model in our current collection.

A refined evolution

This new creation preserves the iconic theatrical architecture of the original GMT Balancier Convexe, while refining its proportions and mechanical layout.

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• The Convexe case, still sculpted in titanium, is now more compact at 42.90 mm at the caseband for improved wearability.

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• A new 72-hour power reserve indicator is seamlessly integrated into the dial, bringing added functionality without disrupting the visual harmony.

Technical enhancements

The movement now contains 496 components, 73 more than its predecessor, attesting to a re-engineering of the calibre to accommodate new displays and improved chronometric performance. 

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Finishing remains uncompromising: the inclined escapement is suspended beneath a flat black polished and barrel polished steel bridge, resting on polished steel pillars. 

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The Terrestrial globe – one of the Atelier’s most emblematic elements – remains, rotating in real time within a layered amphitheatre of time indications.

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On the caseback, a sapphire disc engraved with 24 cities reflects both universal time and summer/winter time, with La Chaux-de-Fonds replacing Paris – a subtle but meaningful shift.

Exclusivity

This new GMT Balancier Convexe will be made in a strictly limited series of 22 timepieces.

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TECHNICAL SPECIFICATIONS

Collection:  CONVEXE

 GMT Balancier Convexe
In titanium
Limited edition
Patented hand-wound movement

• GMT 
• 2nd time zone 
• rotating globe with universal time and day-and-night 
• universal time on 24 time zones • summer and winter time 
• cities observing summer time 
• GMT pusher
• 30° inclined Greubel Forsey balance wheel system 
• hours and minutes • small seconds

Movement
Movement dimensions
• Overall diameter: 37.80mm
• Thickness: 13.80mm
Number of parts
Balance wheel: In-house variable-inertia with 6 gold mean-time screws (12.60mm diameter)
Olived-domed jewels in gold chatons
Number of parts: 496
Escapement platform: 59 parts
Barrels: Two series-coupled fast-rotating barrels (1 turn in 3.2 hours), one of which is equipped with a slipping spring to avoid excess tension
Power reserve of 72 hours
Escapement platform
• Inclined at a 30° angle
• Flat black polished steel, polished bevelling and countersinks, straightgrained flanks
• Polished steel pillars
• Flat black polished and barrel polished steel balance wheel bridge
Gearing
• Involute circle profile
• Inclined gear with profiled teeth on fourth wheel
Displays
 Hours and minutes
 Small seconds
 2nd time zone GMT
 Rotating globe with universal time
 Day-and-night
24 time zones universal time
Summer time, winter time
72-hours power reserve on a sector
Exterior
Case
Titanium with curved sapphire crystal
• Three-dimensional, variable geometry-shaped bezel, hand-polished withhand-finished straight graining
• Profiled lugs, screwed fixing
• Transparent back with curved and high domed synthetic sapphire crystal
• Engraved GMT pusher
• Titanium security screws
• Raised engraving “GMT” and “Greubel Forsey”
Case dimensions
• Caseband diameter: 42.90mm
• Bezel diameter: 44.90mm
• Case height: 15.10mm
• Height on synthetic sapphire crystals: 17.40mm
Water resistance of the case
• Water-resistant 5atm - 50 m - 164f (standard NIHS 92-20/SN ISO 22810:2010)
Crown
• Titanium, polished, frosted and straight-grained, with GF logo
Dial side
Terrestrial globe in titanium, relief-engraved continents, ocean blue treatment
Day-and-night UTC indicator in titanium, engraved and lacquered
GMT indicator in gold
Amphitheatre hour-ring with engraved and lacquered minute-circle
Small seconds indicator in gold
Movement side
• Synthetic sapphire disc displaying city names surrounded by 2 rings (UTC and summer time)
engraved and lacquered, hand matt lapped
• Gold “summer time” plate with limitation number, raised engraving, hand matt lapped
Hands
Hours and minutes, red triangles with Super-LumiNova
2nd time zone GMT indicator, red triangle
Small seconds in polished blued steel, flat black polished head
Strap and clasp
Hand-sewn textured rubber or rubber with text in relief
Titanium folding clasp, engraved GF logo
On demand: 3-row metal bracelet in titanium, folding clasp with integrated fine adjustment, engraved GF 

🔴 Price  (without VAT), first pieces will be delivered this year.

Rubber strap – EUR 420,760 💰

🔰Limitation 
Limited Edition of 22 pieces.

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Press Release - 2025
-----------------------------
-------------------------------------------------
GREUBEL FORSEY SA
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
+41 32 925-4545
+41 32 925-4502
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