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The Encyclopedia of Horology

Component record · Train

Offset Cannon Pinion

Partially verified

Specialized pinion

What it does

Drives the hands from an off-center position

How it works

Evolution

Used in movements where center wheel is not centered

Known variations

    Identification for collectors

      Common failure modes

      • Loose friction

      Diagram

      barrelcentre wheelthird wheelfourth wheelescape wheel
      Schematic: the going train. 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.