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The Encyclopedia of Horology

Wristwatch · Tourbillon wristwatch

Chronoswiss Regulateur Tourbillon Reference CH 3121

Partially verified

This Chronoswiss Regulateur Tourbillon is a manual-winding wristwatch housed in an 18k yellow gold case, measuring 38 mm in diameter and weighing 89 grams. The design features a fluted case band and matching fluted crown. The dial is executed in silver with guilloché decoration and is arranged in a regulator-style, featuring a sub-dial for hour indication at the 12 o'clock position and a visible tourbillon assembly positioned at 6 o'clock. Time is indicated by blue steel hands. The watch is powered by the calibre 361 manual mechanical movement. It is fitted with a leather strap accompanied by an 18k yellow gold buckle signed by the maker. The case, dial, and movement are signed.

Chronoswiss Regulateur Tourbillon in 18k yellow gold showing the silver guilloché dial and the tourbillon aperture at 6 o'clock.
Chronoswiss Regulateur Tourbillon in 18k yellow gold showing the silver guilloché dial and the tourbillon aperture at 6 o'clock. — Antiquorum. Rights pending — permission not yet requested. Original source

Catalogue identity

Source
catalog.antiquorum.swiss
Category
Wristwatch · Tourbillon wristwatch
Maker / attribution
Chronoswiss
Reference
CH 3221
Catalogue / lot identifier
178
Source-reported date
Circa 2002
Source-reported place
Not established
Source-reported serial
04

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 Construction

The watch is constructed with a circular 18k yellow gold case measuring 38 millimeters in diameter. The aesthetic is defined by its fluted case band and matching fluted winding crown, which distinguish the profile of the piece. The watch is worn on a leather strap secured by an 18k yellow gold buckle, which bears the signature of the maker.

The dial is finished with a silver guilloché pattern and is configured in a regulator style. This layout separates the timekeeping elements, with an offset sub-dial indicating the hours at the 12 o'clock position. The primary time display is complemented by blue steel hands. At the 6 o'clock position, the dial is open to reveal the tourbillon assembly.

Evidence for this section
  • “Boîtier rond. Carrure et couronne cannelées.”
  • “Cadran argent guilloché régulateur avec lecture des heures à midi. Tourbillon apparent à 6h. Aiguilles en acier bleu.”

Movement and Technical Specifications

Internally, the watch is equipped with the calibre 361, a manual-winding mechanical movement. This movement incorporates a tourbillon mechanism, which is visually exposed through the aperture in the dial at the bottom of the case. The movement is signed by the manufacturer, adhering to the standard branding visible across the other primary components of the watch.

This detail suggests that while the timepiece is functional, service history may be required to maintain performance standards for its mechanical systems.

Evidence for this section
  • “Movement: 2* Very good Overhaul recommended, at buyer's expense”

Signatures and Accompaniments

The watch is explicitly signed by the maker on the case, the dial, and the internal movement. The specific case number for this individual example is recorded as 04. These identifiers confirm the manufacturer's authentication and help in the tracking of the individual reference model within the Chronoswiss production series.

The watch is sold as a complete set, including the original fitted box provided by the manufacturer. These accessories are included as part of the total lot presented for inspection.

Evidence for this section
  • “Signature Case, dial and movement”
  • “Case No. 04”
  • “Accessories Original fitted box, guarantee, booklet, loupe”

Open research questions

  • What is the specific production date range for the calibre 361 used in the CH 3221 reference?
  • Are there known production limitations for the serial number 04 of this reference?

Source evidence

Recorded claims and source quotations for Chronoswiss Regulateur Tourbillon Reference CH 3121
FieldSource-reported valueSource quotation
MakerChronoswiss“CHRONOSWISS”
ReferenceCH 3221“REF. CH 3221”
Case Material18k yellow gold“18k yellow gold tourbillon wristwatch”
Case Number04“Case No. 04”
YearCirca 2002“Circa 2002”
Dimensions38 mm“Dimensions 38 mm”
SignatureCase, dial and movement“Signature Case, dial and movement”

Visible details

  • Fluted case band and crown
  • Guilloché silver dial with regulator layout
  • Tourbillon cage visible at 6 o'clock
  • Blue steel hands for hour and minute indication

Research qualifications

  • Movement condition is reported as needing an overhaul
  • Case condition is noted as having slight scratches

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

Consulted source

CHRONOSWISS, REF. CH 3221, REGULATEUR TOURBILLON, YELLOW GOLD

Reviewed 2026-10-26 · Record bbce1d9e09

Terms in this record

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

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