Illinois Pocket Watch: Serial Number 527904 (Grade 151)

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Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/illinois/527904

Access Date: June 07, 2025

From the American Horology Archive:

Illinois Watch Co.

Grade: 151

Plate Is Recessed.

Manufacturer:	Illinois
Manufacturer Location:	Springfield, Illinois
Movement Serial Number:	527904
Grade:	151
Model:	2
Estimated Production Year:	1884
Run Quantity:	4,000
Grade/Model Run:	7 of 22
Grade/Model Total Production:	18,100
Size:	8s
Jewels:	7j
Movement Configuration:	Hunting
Movement Finish:	Gilt
Movement Setting:	Lever
Plate:	3/4 Plate
Barrel:	Going
Balance Type:	Expansion
Regulator:	Plain
Hairspring:	Flat
Adjusted:	No
Railroad Grade:	No
U.S. Patents:	238464
Dial Feet Locations:	18.0, 40.5, 49.5
Case Screw Locations:	15.0, 45.0
Movement Markings:	Illinois Watch Co. Springfield, Ill. Patent Pinion
Case:	Various
Run ID:	1255.151G7.8S51.82M36.H520.L853.7J225
Database Version:	v52.696
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Registry Population: Scoped for This Run Only	19 (0.48%)

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Population Registry for This Run

	Image	Serial Number	Run Position	Primary Identification Method	Discovery Date
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Verification Reports for this Run

The following reports have been graciously submitted by dedicated members in reference to this production run. These reports are useful to verify data and track inaccuracies that require further research. Please note that reports may contain inaccurate information or assumptions that must be dilligently considered with other available sources.