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Enter the serial number from the pocket watch movement below. Do not use the case number. Tips for looking up your watch

How to Find Info About Your Pocket Watch

The Pocket Watch Database has compiled data covering the major American pocket watch manufacturers and created an easy way to find information using the serial number on the watch movement. Here are a few tips to find information about your pocket watch:

  1. Always input the serial number from the pocket watch movement (the "guts" of the watch).
  2. Never use the serial number from the case or any other part.
  3. If the serial number includes a letter, enter it along with the number when using the lookup feature.
  4. Many pocket watch case backs screw off. Others may require a dull wide blade to pry or pop the cover. Be careful not to scratch or damage the movement.
  5. Always select the correct manufacturer, which is usually stamped on the watch movement.
  6. If the manufacturer is not listed on the site, you may have a "private label" watch or it may not be American-made.
  7. Understand that many companies did not keep accurate or complete records. As a result, information displayed on this site may have inaccuracies. This is to be expected, and we have included an option to report inaccurate information on the result pages so the database can be continually improved.
Pocket Watch Serial Number Lookup - Hamilton, South Bend, Illinois, Rockford, Waltham & Elgin Pocket Watches
  Serial Number:
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Hamilton Grade 940 Pocket Watch
Hamilton Grade 940 Pocket Watch

Grade: 940

Manufacturer: Hamilton
Manufacturer Location: Lancaster, Pennsylvania
Movement Serial Number: 156623
Grade: 940
Model: 1
To Finishing Dept: Mar 26, 1901
Run Quantity: 1,000
Total Production: 210,596
Size: 18s
Jewels: 21j
Jewel Material: Ruby
Jewel Setting: Gold Settings (Screw-Set)
Movement Configuration: Openface
Movement Finish: Nickel
Finish Pattern: Damaskeened
Movement Inlay Color: Gilt
Movement Setting: Lever
Plate: Full Plate
Barrel: Going
Regulator: Goldthwait
Hairspring: Breguet
Standard Dial Type: Double-Sunk
Adjusted: Yes
Adjusted to Position: Yes
Adjusted # of Positions: 5
Adjusted to Temperature: Yes
Adjusted to Isochronism: Yes
Railroad Grade: Yes
U.S. Patents: 832672, 427072
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Data Confidence Rating:

Verifications & Observations

156001
Verification Serial Map
157000
  • July 17, 2018:
    Serial Number 156068 was reported as accurate
  • May 22, 2018:
    Serial Number 156159 was reported as accurate
  • April 24, 2017:
    Serial Number 156159 was reported as accurate
  • May 21, 2016:
    Serial Number 156366 was reported as accurate
  • April 19, 2015:
    Serial Number 156282 was reported as inaccurate
    No further details were submitted with the report.
  • April 17, 2015:
    Serial Number 156492 was reported as accurate
  • March 27, 2015:
    Serial Number 156297 was reported as accurate
  • March 23, 2015:
    Serial Number 156297 was reported as accurate
  • March 12, 2015:
    Serial Number 156297 was reported as accurate
  • February 9, 2015:
    Serial Number 156872 was reported as accurate
  • May 6, 2014:
    Serial Number 156666 was reported as accurate
  • September 23, 2013:
    Serial Number 156072 was reported as accurate
  • May 11, 2013:
    Serial Number 156128 was reported as accurate
  • May 8, 2013:
    Serial Number 156901 was reported as accurate
  • March 30, 2013:
    Serial Number 157000 was reported as accurate
  • March 4, 2013:
    Serial Number 156492 was reported as accurate
  • March 3, 2013:
    Serial Number 156492 was reported as accurate
  • March 2, 2013:
    Serial Number 156492 was reported as accurate
  • November 28, 2012:
    Serial Number 156580 was reported as accurate
  • May 18, 2012:
    Serial Number 156241 was reported as accurate
  • May 18, 2012:
    Serial Number 156241 was reported as accurate
  • May 18, 2012:
    Serial Number 156241 was reported as inaccurate
    Note: this watch has a full plate.
    Changes since this report was submitted:
    Plate changed from Unknown to Full
  • May 15, 2012:
    Serial Number 156241 was reported as accurate
  • April 30, 2012:
    Serial Number 156241 was reported as accurate
1
Hamilton Grade 940 Pocket Watch
Hamilton Grade 940 Pocket Watch