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The Encyclopedia of Horology

Wristwatch · Quadruple tourbillon wristwatch

Greubel Forsey Quadruple Tourbillon in platinum, No. 35

Partially verified

Source reports describe this Greubel Forsey Quadruple Tourbillon wristwatch, numbered 35 and dating to circa 2009, as cased in a four-part platinum case measuring 43.5 mm in diameter. It is powered by the manually wound calibre GF03 frosted movement equipped with 63 jewels, twin barrels with slipping spring, and a quadruple tourbillon regulator linked by a spherical differential. The dial architecture features an eccentric time display, small seconds, and a power reserve indicator. The watch is completed by a screwed transparent display back and a platinum GF deployant clasp.

Greubel Forsey Quadruple Tourbillon in platinum, No. 35, showing both dial side and sapphire display back
Greubel Forsey Quadruple Tourbillon in platinum, No. 35, showing both dial side and sapphire display back — Christie's. Rights pending — permission not yet requested. Original source

Catalogue identity

Source
www.christies.com
Category
Wristwatch · Quadruple tourbillon wristwatch
Maker / attribution
Greubel Forsey
Reference
Not recorded
Catalogue / lot identifier
3936
Source-reported date
circa 2009
Country
Switzerland
Source-reported serial
No. 35

Source-reported attribution and specifications are not independent authentication. A listing does not establish present ownership, current display, availability or permission to reproduce.

Object description

Identity and Case Construction

This Greubel Forsey Quadruple Tourbillon wristwatch, catalogued under Lot 3936 and numbered 'No. 35', is catalogued by Christie's with an approximate date of circa 2009. The case is described as a four-part platinum construction measuring 43.5 mm in diameter, with an asymmetrical profile, a winding crown showing the raised 'GF' logo, and a platinum GF deployant clasp.

The reverse features a screwed transparent display back. Direct observation of the imagery confirms the display back rim is engraved with '01 494', while the frosted movement visible beneath is engraved with 'No 35'.

Evidence for this section
  • “Diameter: 43.5 mm.”
  • “four-part platinum case, screwed transparent case back, platinum GF deployant clasp”
  • “Asymmetrical platinum case with winding crown bearing the raised 'GF' logo.”
  • “Case back rim visible with engraved number '01 494'.”

Dial Display and Visible Architecture

The front layout incorporates an off-centre dial plate with an eccentric time display, an applied Roman numeral XII, faceted hour markers, a power reserve indicator, and small seconds.

Twin front-facing tourbillon apertures are prominently integrated on the dial side and labelled 'QUADRUPLE TOURBILLON À DIFFÉRENTIEL'. Visible mechanical elements within the apertures include two tourbillon assemblies and open gearwork.

Evidence for this section
  • “eccentric time display, four-part platinum case”
  • “small seconds, power reserve indicator”
  • “Off-centre dial plate featuring applied Roman numeral XII, faceted hour markers, and power reserve indication.”
  • “Twin front-facing tourbillon apertures labelled 'QUADRUPLE TOURBILLON À DIFFÉRENTIEL'.”

Mechanism and Documentation Limits

The watch is powered by the manually wound Calibre GF03, stated in the source description to feature a frosted movement, 63 jewels, twin barrels with slipping spring, and a quadruple tourbillon regulator. Visual examination through the sapphire display back shows frosted movement architecture, blued screws, and mechanical train components.

Christie's records that the lot is accompanied by a Greubel Forsey presentation box and outer packaging. The catalogue notes that the case, dial, and movement are signed, though the relationship between the movement/dial designation 'No 35' and the case-back number '01 494' is not clarified in the text.

Evidence for this section
  • “Calibre GF03, frosted movement, 63 jewels, quadruple tourbillon regulator, twin barrels with slipping spring”
  • “case, dial and movement signed”
  • “With Greubel Forsey presentation box and outer packaging.”
  • “Display case back revealing frosted movement architecture engraved with 'No 35', blued screws, and mechanical train components.”

Open research questions

  • What is the relationship between the case back rim engraving '01 494' and the piece number 'No 35' in Greubel Forsey's numbering system?
  • Does original manufacture or warranty paperwork accompany the lot to confirm the precise date of manufacture beyond the estimated circa 2009 date?

Source evidence

Recorded claims and source quotations for Greubel Forsey Quadruple Tourbillon in platinum, No. 35
FieldSource-reported valueSource quotation
CalibreCalibre GF03“Calibre GF03, frosted movement, 63 jewels, quadruple tourbillon regulator”
Case materialFour-part platinum case“four-part platinum case”
Case diameter43.5 mm“Diameter: 43.5 mm.”
Jewel count63 jewels“63 jewels”
ComplicationsQuadruple tourbillon regulator, small seconds, power reserve indicator“quadruple tourbillon regulator, twin barrels with slipping spring, small seconds, power reserve indicator”
Included packagingGreubel Forsey presentation box and outer packaging“With Greubel Forsey presentation box and outer packaging.”
SignaturesCase, dial, and movement signed“case, dial and movement signed”
Winding and powerTwin barrels with slipping spring“twin barrels with slipping spring”

Visible details

  • Asymmetrical platinum case with winding crown bearing the raised 'GF' logo.
  • Off-centre dial plate featuring applied Roman numeral XII, faceted hour markers, and power reserve indication.
  • Twin front-facing tourbillon apertures labelled 'QUADRUPLE TOURBILLON À DIFFÉRENTIEL'.
  • Display case back revealing frosted movement architecture engraved with 'No 35', blued screws, and mechanical train components.
  • Case back rim visible with engraved number '01 494'.

Research qualifications

  • Circa 2009 dating and technical specifications are source-reported by Christie's.
  • Movement number '01 494' is visible on the case bevel but not explicitly indexed in the catalogue's primary heading.

Photograph identity and source facts were screened before import; rights clearance remains pending.

Consulted source

GREUBEL FORSEY, QUADRUPLE TOURBILLONPLATINUM MANUALLY-WOUND QUADRUPLE TOURBILLON WRISTWATCH WITH POWER RESERVE INDICATION, NO. 35, CIRCA 2009 | Christie's

Reviewed 2026-10-21 · Record bc1161a029

Terms in this record

Glossary explanations for terms named in this object’s record.