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The Encyclopedia of Horology

Wristwatch · Tourbillon wristwatch

Greubel Forsey Tourbillon 24 Secondes Incliné, No. 53

Partially verified

The Greubel Forsey Tourbillon 24 Secondes Incliné, No. 53, is an asymmetrical platinum wristwatch dated circa 2013. The watch is powered by the mechanical caliber GF01 movement with 36 jewels, featuring a fast-rotating 24-second tourbillon carriage inclined at a 25-degree angle. Its 18k gold anthracite dial features applied Arabic and baton numerals, an outer five-minute track, subsidiary seconds, and a fan-form 72-hour power reserve indicator. Measuring 43.5 mm wide, the circular platinum case incorporates an asymmetrical contour and a partially glazed band allowing side views of the inclined tourbillon.

Front view of the Greubel Forsey Tourbillon 24 Secondes Incliné dial and case
Front view of the Greubel Forsey Tourbillon 24 Secondes Incliné dial and case — Christie's. Rights pending — permission not yet requested. Original source

Catalogue identity

Source
www.christies.com
Category
Wristwatch · Tourbillon wristwatch
Maker / attribution
Greubel Forsey
Reference
Not recorded
Catalogue / lot identifier
2287
Source-reported date
circa 2013
Source-reported place
Switzerland
Source-reported serial
Case no. 02 085, Movement no. 1 022

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

Case Architecture and Visible Construction

The timepiece features a circular platinum case catalogued at 43.5 mm wide, with an asymmetrical case band expansion. Visible inspection shows the asymmetric flank designed to house the inclined regulator, along with curved lugs holding a black leather strap.

The cataloguer describes the case as having a "partially glazed band to view the inclined tourbillon" and a "glazed display back secured by six screws". The rear glazed case back and the catalogued platinum double deployant clasp are not visible in the front photograph.

Evidence for this section
  • “43.5 mm. wide”
  • “partially glazed band to view the inclined tourbillon”
  • “glazed display back secured by six screws”
  • “Polished platinum case with an asymmetrical case band expansion accommodating the tourbillon assembly”
  • “Visible segment of a black leather strap attached via curved lugs”

Dial Display and Tourbillon Aperture

The source documents an "18k gold anthracite dial" fitted with applied Arabic and baton numerals and an "outer ring for five minutes divisions". Direct observation shows the applied Arabic "12", baton hour markers, and arrow-tipped hands against the anthracite surface.

A wide dial aperture exposes the inclined tourbillon bridge and carriage. The dial plane also incorporates a semicircular subsidiary seconds track nested near the tourbillon opening, alongside a catalogued "fan-form sector for 72 hours power reserve indication".

Evidence for this section
  • “18k gold anthracite dial”
  • “applied Arabic and baton numerals”
  • “outer ring for five minutes divisions”
  • “fan-form sector for 72 hours power reserve indication”
  • “subsidiary seconds”
  • “Anthracite dial with applied Arabic '12' and baton indexes, along with arrow-tipped hour and minute hands”
  • “Semicircular subsidiary seconds track nested near the tourbillon aperture”
  • “Large dial aperture revealing the 25-degree inclined tourbillon carriage and bridge”

Movement Details and Documentation Limits

Auction documentation records the movement as a "Cal. GF01 mechanical movement" with "36 jewels" and an "inclined at 25° angle and 24 seconds rotation tourbillon carriage". The piece is catalogued as model "NO. 53", with "MOVEMENT NO. 1 022" and "CASE NO. 02 085".

The listing provides an approximate date of "CIRCA 2013" and notes that the case, dial, and movement are signed. Because the movement rear, inner caliber plates, and clasp are not depicted in the image, verification of these internal specifications and numbers relies on the Christie's catalogue entry.

Evidence for this section
  • “Cal. GF01 mechanical movement”
  • “36 jewels”
  • “inclined at 25° angle and 24 seconds rotation tourbillon carriage”
  • “NO. 53, MOVEMENT NO. 1 022, CASE NO. 02 085, CIRCA 2013”
  • “case, dial and movement signed”
  • “platinum Greubel Forsey double deployant clasp”

Open research questions

  • What specific hallmarks and serial engravings are visible on the perimeter of the six-screw glazed display back?
  • Does accompanying documentation confirm whether the strap material corresponds to the endangered species import notice provided in the Christie's catalogue?

Source evidence

Recorded claims and source quotations for Greubel Forsey Tourbillon 24 Secondes Incliné, No. 53
FieldSource-reported valueSource quotation
CaliberCal. GF01“Cal. GF01 mechanical movement”
Jewels36 jewels“36 jewels”
Tourbillon Specification25° inclined angle, 24-second rotation“inclined at 25° angle and 24 seconds rotation tourbillon carriage”
Case Width43.5 mm“43.5 mm. wide”
Case Number02 085“CASE NO. 02 085”
Movement Number1 022“MOVEMENT NO. 1 022”
Dial Material18k gold anthracite“18k gold anthracite dial”
Case Back ClosureGlazed display back secured by six screws“glazed display back secured by six screws”
Clasp TypePlatinum Greubel Forsey double deployant clasp“platinum Greubel Forsey double deployant clasp”
SignaturesCase, dial, and movement signed“case, dial and movement signed”

Visible details

  • Large dial aperture revealing the 25-degree inclined tourbillon carriage and bridge
  • Anthracite dial with applied Arabic '12' and baton indexes, along with arrow-tipped hour and minute hands
  • Polished platinum case with an asymmetrical case band expansion accommodating the tourbillon assembly
  • Semicircular subsidiary seconds track nested near the tourbillon aperture
  • Visible segment of a black leather strap attached via curved lugs

Research qualifications

  • Glazed case back and movement rear are obscured from view in this photograph
  • Platinum double deployant clasp cited in the auction listing is not shown in the image

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

Consulted source

GREUBEL FORSEY. A VERY FINE, IMPORTANT AND VERY RARE PLATINUM ASYMMETRICAL 25° INCLINED 24 SECONDS TOURBILLON WRISTWATCH WITH 72 HOURS POWER RESERVE, SIGNED GREUBEL FORSEY, TOURBILLON 24 SECONDES INCLINÉ MODEL, NO. 53, MOVEMENT NO. 1 022, CASE NO. 02 085, CIRCA 2013 | Christie's

Reviewed 2026-10-21 · Record 911b3adfeb

Terms in this record

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

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