Pocket Watch Database

We noticed that you entered a relatively short serial number.
"1611" could possibly indicate the grade of the watch and not the serial number of your movement. Serial numbers are usually more than a few digits.
From the American Horology Archive:
Illinois Grade Miller Pocket Watch Movement

Illinois Watch Co.

Grade: Miller

Manufacturer: Illinois
Manufacturer Location: Springfield, Illinois
Movement Serial Number: 1611
Grade: Miller
Model: 1
Estimated Production Year: 1872
Run Quantity: 500
Total Production: 11,200
Size: 18s
Jewels: 15j
Movement Configuration: Either
Movement Setting: Key
Plate: Full Plate
Barrel: Going
Train: Coarse
Dial Feet Locations: 16.5, 36.5, 53.0
Case Screw Locations: O-36.5, H-51.5

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Data Verification Reports

1501
Verification Serial Map
2000

rmwatchandclock 75 · September 10, 2020

Serial Number 1624 was reported as accurate.

Anonymous · March 1, 2017

Serial Number 1611 was reported as accurate.

Anonymous · January 25, 2017

Serial Number 1614 was reported as accurate.

Anonymous · June 30, 2013

Serial Number 1915 was reported as inaccurate.

Note: Bristol
Illinois Grade Miller Pocket Watch Movement