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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
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Due to the lack of existing factory records, our E. Howard Watch Co. (Keystone) database has been reconstructed using observations of known watches.
As a result, the information may contain inaccuracies. Please let us know if you have details that can improve the database.

E. Howard Watch Co. (Keystone) Grade Series 7 Pocket Watch

Grade: Series 7

Manufacturer: E. Howard Watch Co. (Keystone)
Manufacturer Location: Waltham, Massachusetts
Movement Serial Number: 1134183
Grade: Series 7
Model: 1908
Estimated Production Year: 1912
Run Quantity: 6,000
Total Production: 51,850
Size: 12s
Jewels: 17j
Movement Configuration: Openface or Hunting
Movement Finish: Nickel
Movement Setting: Pendant
Plate: Bridge Plate
Double Roller: Yes
Hairspring: Breguet
Adjusted: Yes
Adjusted # of Positions: 3
Adjusted to Temperature: Yes
Railroad Grade: No
Help us improve the database: Does this info describe your movement accurately?
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Data Confidence Rating:

Verifications & Observations

1130001
Verification Serial Map
1136000
  • June 27, 2020:
    Serial Number 1131945 was reported as accurate
  • February 2, 2020:
    Serial Number 1130396 was reported as accurate
  • January 4, 2020:
    Serial Number 1131206 was reported as accurate
  • January 2, 2020:
    Serial Number 1134646 was reported as accurate
  • January 2, 2020:
    Serial Number 1134646 was reported as inaccurate
    No further details were submitted with the report.
  • September 22, 2019:
    Serial Number 1133924 was reported as accurate
  • September 21, 2019:
    Serial Number 1135323 was reported as accurate
  • June 10, 2019:
    Serial Number 1135278 was reported as accurate
    Changes since this report was submitted:
    Plate changed from 3/4 to Bridge
  • May 7, 2019:
    Serial Number 1132952 was reported as accurate
    Changes since this report was submitted:
    Plate changed from 3/4 to Bridge
  • March 9, 2019:
    Serial Number 1130472 was reported as accurate
    Changes since this report was submitted:
    Plate changed from 3/4 to Bridge
  • February 16, 2019:
    Serial Number 1131559 was reported as accurate
    Changes since this report was submitted:
    Plate changed from 3/4 to Bridge
  • January 26, 2019:
    Serial Number 1135093 was reported as accurate
    Changes since this report was submitted:
    Plate changed from 3/4 to Bridge
  • January 26, 2019:
    Serial Number 1135093 was reported as accurate
    Changes since this report was submitted:
    Plate changed from 3/4 to Bridge
  • October 12, 2018:
    Serial Number 1130072 was reported as accurate
    Changes since this report was submitted:
    Movement Configuration changed from Openface to Openface or Hunting
    Plate changed from 3/4 to Bridge
  • September 29, 2018:
    Serial Number 1133643 was reported as accurate
    Changes since this report was submitted:
    Movement Configuration changed from Openface to Openface or Hunting
    Plate changed from 3/4 to Bridge
88
E. Howard Watch Co. (Keystone) Grade Series 7 Pocket Watch