Waltham, United States · 1821 – 1888
Charles Vander Woerd
Partially verifiedWatch factory engineering
Life & work
Mechanical superintendent at Waltham; designed the first automatic screw machine.
Training, contributions & innovations
- Automated the production of watch screws and pinions
Inventions & patents
- Patents for watchmaking machinery
Signatures & markings on surviving work
- Waltham
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
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
- Britten, F. J., Old Clocks and Watches and Their Makers
- Loomes, B., The Early Clockmakers of Great Britain
- Ehrhardt, R., American Pocket Watch Identification and Price Guide
- Museum catalogue records
Where sources disagree, the disagreement is stated rather than resolved silently.