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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 "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: Bunn Special

Manufacturer: Illinois
Manufacturer Location: Springfield, Illinois
Movement Serial Number: 4420353
Grade: Bunn Special
Model: 9
Estimated Production Year: 1923
Run Quantity: 1,000
Total Production: 169,440
Size: 16s
Jewels: 21j
Jewel Material: Ruby
Movement Configuration: Openface
Movement Finish: Nickel
Finish Pattern: Ray
Movement Setting: Lever
Plate: 3/4 Plate
Double Roller: Yes
Barrel: Going
Adjusted: Yes
Adjusted # of Positions: 6
Adjusted to Temperature: Yes
Railroad Grade: Yes
Dial Feet Locations: 17.5, 39.0, 58.0
Case Screw Locations: 3.0, 38.0
Movement Markings: Bunn Special
Illinois Watch Co.
Springfield
21 Jewels
Adjusted
Temp. And
Six
Positions
Double Roller
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Data Confidence Rating:

Verifications & Observations

4420001
Verification Serial Map
4421000
  • April 28, 2020:
    Serial Number 4420885 was reported as accurate
  • February 3, 2020:
    Serial Number 4420204 was reported as accurate
  • August 24, 2019:
    Serial Number 4420917 was reported as accurate
  • April 2, 2019:
    Serial Number 4420135 was reported as accurate
  • February 1, 2019:
    Serial Number 4420535 was reported as accurate
  • December 2, 2018:
    Serial Number 4420542 was reported as accurate
  • October 23, 2018:
    Serial Number 4420800 was reported as accurate
  • September 14, 2018:
    Serial Number 4420353 was reported as accurate
  • August 8, 2017:
    Serial Number 4420725 was reported as accurate
  • June 25, 2017:
    Serial Number 4420446 was reported as accurate
  • June 24, 2016:
    Serial Number 4420775 was reported as accurate
  • March 26, 2015:
    Serial Number 4420792 was reported as accurate
  • September 18, 2014:
    Serial Number 4420326 was reported as accurate
  • September 17, 2013:
    Serial Number 4420446 was reported as accurate
  • July 20, 2013:
    Serial Number 4420446 was reported as inaccurate
    Note: It's showing as a 12S Grade 405 and it is a 16S
    21J Bunn Special....
    Changes since this report was submitted:
    Grade changed from 405 to Bunn Special
    Size changed from 12 to 16
    Jewels changed from 17j to 21j
    Factory Model changed from 3 to 9
    Movement Setting changed from Pendant to Lever
    Adjusted # Positions changed from 3 to 6
    Railroad Grade changed from No to Yes
    Plate changed from Bridge to 3/4
  • March 7, 2013:
    Serial Number 4420587 was reported as inaccurate
    Note: 16s 21j Bunn Special; see ebay 261070397135.
    Changes since this report was submitted:
    Grade changed from 405 to Bunn Special
    Size changed from 12 to 16
    Jewels changed from 17j to 21j
    Factory Model changed from 3 to 9
    Movement Setting changed from Pendant to Lever
    Adjusted # Positions changed from 3 to 6
    Railroad Grade changed from No to Yes
    Plate changed from Bridge to 3/4
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