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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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Grade: 900

Manufacturer: Rockford
Manufacturer Location: Rockford, Illinois
Movement Serial Number: 666038
Grade: 900
Model: 9
Estimated Production Year: 1905
Run Quantity: 500
Total Production: 1,100
Size: 18s
Jewels: 24j
Jewel Material: Ruby & Sapphire
Jewel Setting: Gold Settings (Screw-Set)
Movement Configuration: Openface
Movement Finish: Nickel
Movement Signing Style: Serif (Decorative)
Movement Inlay Color: Gilt
Movement Setting: Lever
Plate: Full Plate
Double Roller: Yes
Regulator: Micrometric
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:
Movement Markings: Rockford Wat ch Co.
U.S.A.
R.G.
900
24 Jewels
5 Positions
Adjusted
Double Roller
Data Research: c.1907 Rockford Serial List
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Data Confidence Rating:

Verifications & Observations

666001
Verification Serial Map
666500
  • April 16, 2019:
    Serial Number 666329 was reported as accurate
  • March 31, 2019:
    Serial Number 666128 was reported as accurate
  • January 5, 2019:
    Serial Number 666100 was reported as accurate
  • February 7, 2018:
    Serial Number 666476 was reported as accurate
  • February 7, 2018:
    Serial Number 666476 was reported as accurate
  • January 18, 2018:
    Serial Number 666331 was reported as accurate
  • January 18, 2018:
    Serial Number 666347 was reported as accurate
  • August 29, 2015:
    Serial Number 666050 was reported as accurate
  • May 11, 2015:
    Serial Number 666292 was reported as accurate
  • April 18, 2015:
    Serial Number 666292 was reported as accurate
  • April 5, 2015:
    Serial Number 666033 was reported as accurate
  • March 26, 2015:
    Serial Number 666292 was reported as accurate
  • March 16, 2015:
    Serial Number 666292 was reported as accurate
  • March 16, 2015:
    Serial Number 666292 was reported as accurate
  • March 16, 2015:
    Serial Number 666292 was reported as accurate
  • March 4, 2015:
    Serial Number 666292 was reported as accurate
  • February 10, 2015:
    Serial Number 666292 was reported as accurate
  • July 23, 2014:
    Serial Number 666472 was reported as accurate
  • July 10, 2014:
    Serial Number 666256 was reported as inaccurate
    Note: Additional comment on my watch: elliptical jewel
    setting on the barrel bridge is missing.Could it
    be a faked 24J like indicated in _The complete
    price guide to wathes, 2006 edition_?
  • March 29, 2014:
    Serial Number 666164 was reported as accurate
  • March 29, 2014:
    Serial Number 666446 was reported as accurate
  • February 14, 2014:
    Serial Number 666256 was reported as inaccurate
    Note: 24 jewels, adj 5 positions, double roller,grade
    900, Ni, DMK, lever set, railroad grade, open face
    Changes since this report was submitted:
    Grade changed from Unknown to 900
    Jewels changed from ? to 24j
    Movement Configuration changed from Hunting to Openface
    Factory Model changed from 0 to 9
    Railroad Grade changed from No to Yes
  • February 12, 2014:
    Serial Number 666376 was reported as inaccurate
    Note: Grade = 900
    Jewels = 24
    Adjustments = 5
    Changes since this report was submitted:
    Grade changed from Unknown to 900
    Jewels changed from ? to 24j
    Movement Configuration changed from Hunting to Openface
    Factory Model changed from 0 to 9
    Railroad Grade changed from No to Yes
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