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 "mechanism" of the watch).
  2. Never use the serial number from the case or any other part.
  3. Always select the correct manufacturer, which is usually stamped on the watch movement or dial.
  4. If the manufacturer is not listed on the site, you may have a "private label" watch or it may not be American-made.
  5. If the serial number includes a letter, enter it along with the number when using the lookup feature.
  6. 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.
  7. Consider uploading images of your watch by creating a collection account on the website. This is compeltely free and assists in promoting research in American horology.
  8. 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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Grade: 946

Manufacturer: Hamilton
Manufacturer Location: Lancaster, Pennsylvania
Movement Serial Number: 493768
Grade: 946
Model: 1
To Finishing Dept: Mar 27, 1908
Run Quantity: 1,000
Total Production: 10,692
Size: 18s
Jewels: 23j
Jewel Material: Ruby & Sapphire
Jewel Setting: Gold Settings (Screw-Set)
Movement Configuration: Openface
Movement Finish: Nickel
Movement Inlay Color: Gilt
Movement Setting: Lever
Plate: Full Plate
Barrel: Patent Motor
Regulator: Goldthwait
Hairspring: Breguet
Pallet Jewel Material: Sapphire
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
Quality Rating:
Dial Feet Locations: 2.6, 18.0, 38.2
U.S. Patents: 832672, 427072
Data Research: 1953 Hamilton Serial List
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Data Confidence Rating:

Verifications & Observations

Verification Serial Map
  • May 28, 2019:
    Serial Number 493352 was reported as accurate
  • March 8, 2018:
    Serial Number 493342 was reported as accurate
  • August 16, 2016:
    Serial Number 493050 was reported as accurate
  • June 15, 2016:
    Serial Number 493311 was reported as accurate
  • June 7, 2016:
    Serial Number 493534 was reported as accurate
  • April 29, 2016:
    Serial Number 493906 was reported as accurate
  • January 12, 2016:
    Serial Number 493534 was reported as accurate
  • March 1, 2015:
    Serial Number 493455 was reported as accurate
  • January 5, 2015:
    Serial Number 493917 was reported as accurate
  • October 13, 2014:
    Serial Number 493190 was reported as accurate
  • January 17, 2014:
    Serial Number 493785 was reported as accurate
  • December 24, 2013:
    Serial Number 493855 was reported as accurate
  • May 4, 2013:
    Serial Number 493512 was reported as accurate
  • March 1, 2013:
    Serial Number 493521 was reported as accurate
  • November 12, 2012:
    Serial Number 493721 was reported as accurate
  • July 28, 2012:
    Serial Number 493160 was reported as accurate