Enter the serial number from the pocket watch movement below. Do not use the case number. Serial Number Tip

Pocket Watch Serial Number Lookup - Hamilton, South Bend, Illinois, Rockford, Waltham & Elgin Pocket Watches
  Serial Number:
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Hampden Pocket Watch Regulators

These are known regulators used on Hampden 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
Patent Date:c. 1755
Patent Number:
Inventor:William B. Tucker
Patent Date:Aug 27 1867
Patent Number:68324
Name:Hampden Star
Patent Date:
Patent Number:
Inventor:Charles Teske
Patent Date:Oct 5 1875
Patent Number:168429