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The Encyclopedia of Horology

Geneva, Switzerland

Isaac Soret et Fils

Partially verified

Standardized watch movements and calendar timepieces

History

Isaac Soret established a watchmaking manufactory in Geneva during the early eighteenth century.

Following the founder, the firm was managed by his sons and grandson until the end of the 1700s under the name Isaac Soret et Fils. The company gained prominence for its specialized production of standardized timepieces, utilizing consistent movement sizes across multiple generations of makers. In addition to their standard pocket watches, the workshops produced complex calendar watches featuring multiple dials.

The extended history summarises the open references listed under Sources; each statement was checked against the cited passage. Confirm key dates in period documents before relying on them.

Key models

Calendar watch
This model featured a complex face with four small dials indicating temporal and calendar information.

Major innovations

  • The firm implemented standardized manufacturing processes to improve efficiency in response to growing market demand.
  • Three generations of the Soret family maintained a production standard by utilizing identical 35 mm movement dimensions.

Known markings

  • The firm signed their pieces as Isaac Soret & Fils.

Serial numbers

No serial-number system for this maker is recorded in the cited references.

Collecting significance

The catalogued pieces listed on this page show the kinds of objects auction houses, dealers and museums attribute to this maker; each attribution is the source's own.

In the object catalogue

2 catalogued objects are recorded under Isaac Soret et Fils. Attributions are as given by each source and are not independent authentication.

  • The reverse of the consular gold case, featuring an oval tri-color gold cartouche with floral and bird motifs.
  • Front view of the Isaac Soret et Fils quarter-repeating watch showing the eccentric dial layout, moon phase, date subsidiary, and outer case tortoiseshell border.

Sources & references

  1. Watch | Soret, Isaac | V&A Explore The Collections, Victoria and Albert Museum, retrieved 2026-11-03 (paraphrased; text © the publisher)
  2. Pair-case Watch – Works – Munson, munson.emuseum.com, retrieved 2026-11-03 (paraphrased; text © the publisher)
  3. Taschenuhr „Nr. 16959“ von Isaac Soret & Fils, Genf – Wien Museum Online Sammlung, sammlung.wienmuseum.at, retrieved 2026-11-03 (paraphrased; text © the publisher)

Where sources disagree, the disagreement is stated rather than resolved silently.