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The Encyclopedia of Horology

Wristwatch · Self-winding chronometer wristwatch

Franck Muller Cintrée Curvex Chronometro Ref. 2852

Partially verified

This Franck Muller wristwatch, identified as reference 2852, belongs to the Cintrée Curvex collection and was manufactured in the 1990s. The timepiece is housed in a curved, tonneau-shaped, two-body stainless steel case measuring 31 x 43 mm with a thickness of 10 mm. The case features polished and brushed surfaces, a rounded bezel, and a transparent exhibition case back secured by four screws. The dial is silver-finished with a guilloché pattern, featuring radial black painted Arabic numerals on a plain reserve and an outer minute track. It is powered by the self-winding Caliber 2800, which includes 21 jewels, a monometallic balance adjusted to eight positions, a shock-absorber system, a micrometer regulator, a hack mechanism, and a solid platinum rotor. The watch is completed by blued steel spade hands and comes with a stainless steel buckle.

Front view of the Franck Muller Cintrée Curvex reference 2852 on a black leather strap.
Front view of the Franck Muller Cintrée Curvex reference 2852 on a black leather strap. — Antiquorum. Rights pending — permission not yet requested. Original source

Catalogue identity

Source
catalog.antiquorum.swiss
Category
Wristwatch · Self-winding chronometer wristwatch
Maker / attribution
Franck Muller
Reference
2852
Catalogue / lot identifier
610
Source-reported date
1990s
Source-reported place
Switzerland
Source-reported serial
20

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 and Dial

The timepiece features a tonneau-shaped, curved stainless steel case, characterized by a dual-body construction that incorporates both polished and brushed finishes. The design includes a rounded bezel and a case back fitted with a transparent sapphire crystal panel held in place by four screws, allowing for visibility of the internal movement.

The silvered dial is detailed with a guilloché pattern and displays radial black painted Arabic numerals positioned upon a smooth, plain reserve. An outer minute track surrounds the periphery of the dial. Time is indicated by a pair of blued steel spade hands, which contrast against the silvered background.

Evidence for this section
  • “curved tonneau-shaped”
  • “Two body, polished and brushed, rounded bezel”
  • “transparent back with 4 screws, sapphire crystals”
  • “Guilloché silver with radial painted black Arabic numerals on a plain reserve”

Movement and Escapement

The watch is powered by the self-winding Caliber 2800, a movement finished with rhodium plating and fausses cotes decoration. The mechanical assembly utilizes a straight-line lever escapement and incorporates a monometallic balance that is adjusted to 8 positions.

Further technical components include a shock-absorber system, a self-compensating flat balance-spring, and a micrometer regulator for adjustment. The movement also features a hack mechanism to stop the seconds hand during time-setting and is equipped with a solid platinum rotor, which is visible through the exhibition case back.

Evidence for this section
  • “Cal. 2800 rhodium plated, fausses cotes decoration”
  • “straight-line lever escapement, monometallic balance adjusted to 8 positions”
  • “solid platinum rotor, hack mechanism”

Signatures and Condition

The watch is signed on the dial, the case, and the movement. According to the auction report, the dial is in 'as new' condition, while the hands are described as original.

The piece is identified as number 20, with reference 2852, and is noted as a water-resistant chronometer wristwatch.

Evidence for this section
  • “Dial, case and movement signed.”
  • “Grading System Grade: A Good Case: 3 Good Movement: 2* Very good”
  • “Overhaul recommended, at buyer's expense”
  • “Dial: 1-01 As new”

Open research questions

  • What is the specific manufacturer-confirmed production year within the 1990s?
  • Does the 'Chronometro' designation on the dial imply a specific chronometric certification beyond the watch being a 'chronometer'?

Source evidence

Recorded claims and source quotations for Franck Muller Cintrée Curvex Chronometro Ref. 2852
FieldSource-reported valueSource quotation
MakerFranck Muller“Franck Muller, Genève”
Case materialStainless steel“stainless steel chronometer wristwatch”
Movement caliberCal. 2800“M. Cal. 2800”
Case dimensions31 x 43 mm“Dim. 31 x 43 mm.”
Rotor materialPlatinum“solid platinum rotor”
Number of jewels21“21 jewels”
Adjustment8 positions“monometallic balance adjusted to 8 positions”

Visible details

  • Tonneau-shaped case design
  • Guilloché patterned dial center
  • Visible platinum rotor through case back
  • Arabic numeral hour markers

Research qualifications

  • Overhaul recommended by auction house
  • Specific production year within the 1990s not provided

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

Consulted source

Cintrée Curvex Chrono-metro Franck Muller, Genève, "Cintrée Curvex Chronometro", N° 20, Ref. 2852. Made in the 1990s. Very fine, curved tonneau-shaped, selfwinding, water-resistant, center-seconds, stainless steel chronometer wristwatch with a stainless steel buckle.

Reviewed 2026-10-26 · Record 8533b33066

Terms in this record

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

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