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The Encyclopedia of Horology

Le Brassus, Switzerland

Frédéric Piguet (Piguet Frères)

Partially verified

Ultra-thin and chronograph calibres

History

Vallée de Joux movement maker known for very thin and complicated calibres.

Major innovations

    Known markings

    • 'F. Piguet'

    Serial numbers

    This archive holds no verified serial-number table for this maker. Do not date a piece from its serial number alone; use case hallmarks, movement construction, trade directories and documented comparison examples.

    Collecting significance

    Originality of dial, hands, case and movement is the main consideration. Confirm that the movement belongs to the case and that the dial has not been refinished, and record what is verified separately from what is inferred.

    Diagram

    driving wheelcoupling clutchcolumn wheelpusher
    Schematic: chronograph control. An outline schematic drawn to show the arrangement of the parts discussed here. It is not a dimensioned working drawing and does not depict a particular maker's calibre.

    Sources & references

    1. Kathleen H. Pritchard, Swiss Timepiece Makers 1775–1975
    2. Brian Loomes, Watchmakers and Clockmakers of the World
    3. Mikrolisk trademark and maker index
    4. Published trade directories and period material catalogues

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