Waltham, United States · 1833 – 1917
Ambrose Webster
Partially verifiedWatch factory machinery
Life & work
A key mechanical mind at Waltham; co-founded the American Watch Tool Company.
Training, contributions & innovations
- Advanced the design of watchmaking lathes
Inventions & patents
- Patents for precision lathes
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.