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The Encyclopedia of Horology

Component record · Escapement

Diashock Spring

Partially verified

Circular spring

What it does

Seiko shock protection system

How it works

Evolution

Seiko proprietary

Known variations

    Identification for collectors

      Common failure modes

      • Rust

      Diagram

      top plate or bridgespillar platebalance and cockwheel train between the plates
      Schematic: plate and bridge layout. 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.