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The Encyclopedia of Horology

Component record · Train

Repeater Hammer

Partially verified

Weighted striker

What it does

Strikes the gong to sound the time

How it works

Evolution

Polished finish standard

Known variations

    Identification for collectors

      Common failure modes

      • Missing the gong

      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.