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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: 936

Manufacturer: Hamilton
Manufacturer Location: Lancaster, Pennsylvania
Movement Serial Number: 973223
Grade: 936
Model: 1
Class: 2
To Finishing Dept: Oct 25, 1912
Run Quantity: 1,000
Total Production: 23,507
Size: 18s
Jewels: 17j
Jewel Setting: Gold Settings (Screw-Set)
Movement Configuration: Openface
Movement Finish: Nickel
Movement Signing Style: Serif (Decorative)
Movement Inlay Color: Black
Movement Setting: Lever
Plate: Full Plate
Double Roller: Yes
Barrel: 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
Dial Feet Locations: 2.6, 18.0, 38.2
U.S. Patents: 832672, 427072
Movement Markings: Hamilton Watch Co.
Lancaster, Pa.
Motor Barrel
936
Adjusted 5 Positions
17 Jewels
Double Roller
Data Research: 1953 Hamilton Serial List
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Data Confidence Rating:

Verifications & Observations

973001
Verification Serial Map
974000
  • October 5, 2019:
    Serial Number 973145 was reported as accurate
  • January 3, 2019:
    Serial Number 973097 was reported as accurate
  • October 5, 2018:
    Serial Number 973469 was reported as accurate
  • August 6, 2018:
    Serial Number 973097 was reported as accurate
  • May 1, 2018:
    Serial Number 973235 was reported as accurate
  • October 8, 2017:
    Serial Number 973220 was reported as accurate
  • January 27, 2017:
    Serial Number 973607 was reported as accurate
  • January 27, 2017:
    Serial Number 973607 was reported as accurate
  • November 21, 2016:
    Serial Number 973223 was reported as inaccurate
    Note: Hamilton's 936 was their first watch produced and
    made expressly for RR use. Serial numbers 1
    through 426150 used a single roller. Staring with
    no. 426151 in 1906 and continuing to the end of
    production of the 936 with 1401000 a DOUBLE ROLLER
    was used. 624301 saw the introduction of the MOTOR
    BARREL, which continued to the end of production
    also. The last few runs (like 973223) were fully
    marked with "936", "Motor Barrel", and "double
    Roller" all stamped on the barrel bridge. The
    above information was obtained for Lloyd
    Halligan's notes on Hamilton watch size and grade
    production and remarks on the digitized serial
    number look up data base at NAWCC.
    Changes since this report was submitted:
    Double Roller changed from No to Yes
  • October 28, 2015:
    Serial Number 973826 was reported as accurate
  • July 22, 2015:
    Serial Number 973256 was reported as accurate
  • July 8, 2015:
    Serial Number 973826 was reported as accurate
  • May 12, 2015:
    Serial Number 973816 was reported as inaccurate
    Note: Movement marked Motor Barrel
  • October 23, 2014:
    Serial Number 973532 was reported as inaccurate
    No further details were submitted with the report.
  • September 3, 2013:
    Serial Number 973429 was reported as accurate
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