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The Encyclopedia of Horology

Vienna, Austria · 20th century

Reinhold Sayko

Partially verified

Horological research

Life & work

Austrian researcher specializing in precision pendulum clocks.

Training, contributions & innovations

  • Advanced the study of Shortt-Synchronome clocks

Inventions & patents

  • N/A

Signatures & markings on surviving work

  • Reinhold Sayko

Collecting significance

Authenticity depends on signatures and movement quality. For 19th-century makers, serial numbers often allow for precise dating. For modern independents, documentation from the maker is key.

Related photographs

Standard Electric Time Co. Electromechanical Master Clock 02
Standard Electric Time Co. Electromechanical Master Clock 02 — Elecclock, CC BY-SA 3.0. Wikimedia Commons file page
Standard Electric Time Co. Electromechanical Master Clock 01
Standard Electric Time Co. Electromechanical Master Clock 01 — Elecclock, CC BY-SA 3.0. 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. Britten, F. J., Old Clocks and Watches and Their Makers
  2. Loomes, B., The Early Clockmakers of Great Britain
  3. Ehrhardt, R., American Pocket Watch Identification and Price Guide
  4. Museum catalogue records

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