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The Encyclopedia of Horology

Wall regulator clock · United States

Seth Thomas Regulator No. 2

Needs research

A widely produced American precision wall regulator commonly used in period offices, railroad stations and schools as a visible accurate time reference; its long production run and broad presence make individual dating and specification confirmation essential rather than assuming a single fixed specification across the whole run.

Technical facts

Escapement
Deadbeat
Pendulum
Wood-rod or mercury-compensated pendulum depending on grade and period

Historical significance

  • A widely produced American precision wall regulator commonly used in period offices, railroad stations and schools as a visible accurate time reference; its long production run and broad presence make individual dating and specification confirmation essential rather than assuming a single fixed specification across the whole run.

Related photographs

Graham Escapement
Graham Escapement — Frederick J. Britten, Public domain. Wikimedia Commons file page

No confidently matched photograph of this subject has been found yet. These photographs show a closely related record, and are not examples of the type described on this page.

Sources & references

  1. NAWCC Bulletin, articles on Seth Thomas regulator production

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