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The Encyclopedia of Horology

Component record · Train

Clutch Lever

Partially verified

Movable lever

What it does

Engages chronograph with train

How it works

Evolution

Standard in lateral clutch systems

Known variations

    Identification for collectors

      Common failure modes

      • Sticking

      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. de Carle, D., Practical Watch Repairing
      2. de Carle, D., Watch and Clock Encyclopedia
      3. Daniels, G., Watchmaking

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