Breguet Yellow Gold Tourbillon 'Classique', Ref. 3657

Technical characteristics

Dial

Silvered, guilloché

Type

Tourbillon wristwatch

Movement

Manual

Functions

Tourbillon, power reserve and retrograde 24 hour indication

Case number

2'664L

Case diameter

40 mm

Case material

Yellow gold

Place recorded

Switzerland

Maker / attribution

Breguet

Design

Visible features

• Silvered dial with multi-pattern guilloché and off-centred chapter ring with Roman numerals • Open aperture at 6 o'clock displaying the tourbillon cage with a horizontal bridge • Blued steel Breguet-style hands for the primary time display • Dial signed 'BREGUET' and numbered 'No 2664' flanking the tourbillon aperture • Lower dial margin marked 'SWISS GUILLOCHE MAIN'

Dial Architecture and Visible Features

The timepiece features a silvered engine-turned guilloché dial configured with an off-centred primary time display displaying Roman numerals and blued steel Breguet-style hands. At the lower portion of the dial, an open aperture at 6 o'clock reveals the tourbillon cage secured under a horizontal bridge. Flanking the tourbillon aperture, the dial is signed 'BREGUET' and numbered 'No 2664'. The lower margin is marked 'SWISS GUILLOCHE MAIN'. Complications integrated into the dial include a power reserve indicator and a retrograde 24-hour indication. A scratch is noted on the crystal near twelve o'clock, while the dial and hands are described by the auction house as showing virtually no signs of wear.

Case Construction and Exterior Hardware

This Breguet Classique reference 3657 features a 40 mm round case fashioned from yellow gold, bearing case number 2'664L and dated by the cataloguer to circa the 2000s. The cataloguing notes that the case exhibits light scratches and nicks throughout, while the hallmarks remain defined. The watch is fitted with a yellow gold Breguet deployant clasp described as showing light scratches and wear throughout, with crisp, well-defined hallmarks. The original strap is not included in the sale; instead, the piece is delivered on a Christie's branded replacement strap.

Reported Movement and Documented Limitations

The wristwatch is powered by a manual-wind movement supporting the tourbillon, power reserve, and retrograde 24-hour indication. Calibre designation, jewel count, and internal movement numbering are not recorded in the source listing. The auction house condition report notes that the movement was running at the time of cataloguing consistent with the age of the watch, but it was not tested for timekeeping accuracy and a service is recommended. Additionally, the lot includes neither manufacturer box nor papers.

Identification

Reference

3657

Serial number

2'664L

Source note

Facts transcribed from the linked source listing or collection record. Attribution and specifications are source-reported and have not been independently authenticated.

Catalogue references

No catalogue numbers recorded. Numbers are only published once transcribed from a verified edition of a standard catalogue — they are never inferred.