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The Encyclopedia of Horology

Component record · Train

Repeater Snail

Partially verified

Stepped cam

What it does

Determines the number of strikes

How it works

Evolution

Hour, quarter, and minute snails

Known variations

    Identification for collectors

      Common failure modes

      • Wear on steps

      Diagram

      count wheel or rackdetenthammer and gongwarning piece
      Schematic: striking and sounding work. 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.