Pocket Watch Database

From the American Horology Archive:
Illinois Grade Mason Pocket Watch Movement

Illinois Watch Co.

Grade: Mason

Manufacturer: Illinois
Manufacturer Location: Springfield, Illinois
Movement Serial Number: 15250
Grade: Mason
Model: 1
Estimated Production Year: 1874
Run Quantity: 1,000
Total Production: 10,300
Size: 18s
Jewels: 7j
Movement Configuration: Either
Movement Finish: Gilt
Movement Setting: Key
Plate: Full Plate
Barrel: Going
Train: Coarse
Railroad Grade: No
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

15001
Verification Serial Map
16000

Anonymous · January 3, 2020

Serial Number 15188 was reported as inaccurate.

No further details were submitted with the report.

Bobhmcs 6 · October 28, 2019

Serial Number 15828 was reported as inaccurate.

Note: This is a Swiss Wallonia Brevet 21j ruby set
pocket watch with a Illinois movement S/N Brevet
N15828 in a Wallonia .800 sterling silver and 7k
Rose Gold Open Face snap back and dust cover case.
The crystal is pristine and it has a plain no logo
enamel face with Arabic numerals in fine condition
except for Mark's in the 8 and 9 position. The
second hand is not original. Fine running
condition but gains 5 mins every 12 hours. It is
Pendant wound and set. I hope this is appropriate
information.
Curator Response: Thanks for the report. The database covers American-made watches, so the lookup information will not be relevant to your watch.

Anonymous · June 27, 2019

Serial Number 15050 was reported as inaccurate.

Note: This one is marked ( Interior ).
Curator Response: Thanks for the report. If possible, please upload an image of the movement to your collection for further evaluation and documentation.

bubba70 526 · April 25, 2019

Serial Number 15746 was reported as accurate.

nicnic 187 · May 5, 2018

Serial Number 15993 was reported as accurate.

esoxhunter 112 · March 28, 2018

Serial Number 15250 was reported as accurate.

Anonymous · January 22, 2018

Serial Number 15422 was reported as accurate.

Anonymous · December 22, 2014

Serial Number 15465 was reported as accurate.

rocket00 236 · January 26, 2014

Serial Number 15626 was reported as accurate.

pmwas1 91 · November 10, 2013

Serial Number 15936 was reported as inaccurate.

Note: Once again - I've marked that accurate, but masons
were always lower grade gilded and unadjusted so
this could be corrected here.

Anonymous · April 27, 2013

Serial Number 15936 was reported as accurate.

Illinois Grade Mason Pocket Watch Movement