Pocket Watch Database

Hamilton Watch Co.
Pocket Watch Regulators

These are known regulators used on Hamilton Watch Co. watch movements. The regulator is used to adjust the balance wheel's rate of oscillation in order to improve accuracy of the watch. Several varieties of watch regulators were used in movement designs, most of which were patented, often called "Patent Regulators." The best regulators offer extreme precision while adjusting the rate of oscillation. A patent regulator was often an indicator of quality.

Inventor:Joseph Bosley
Inventor:George P. Reed
Patent Date:Feb 5 1867
Patent Number:61867
Inventor:William Goldthwait
Patent Date:May 6 1890
Patent Number:427072
Name:Hamilton Spring
Inventor:(Reed Variant)
Patent Date:Feb 5 1867
Patent Number:61867