Illinois Pocket Watch: Serial Number 3491918 (Grade Bunn Special)

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Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/illinois/3491918

Access Date: May 23, 2025

From the American Horology Archive:

Illinois Watch Co.

Grade: Bunn Special

Manufacturer:	Illinois
Manufacturer Location:	Springfield, Illinois
Movement Serial Number:	3491918
Grade:	Bunn Special
Variation:	RY.B.TempAnd
Model:	9
Estimated Production Year:	1919
Run Quantity:	980
Grade/Model Run:	86 of 194
Grade/Model Total Production:	169,740
Variant Est. Production:	103,290 (16S-M9-21J-ONL-A6PTI-RY.B.TEMPAND)
Size:	16s
Jewels:	21j
Jewel Material:	Ruby
Movement Configuration:	Openface
Movement Finish:	Nickel
Finish Pattern:	Ray
Movement Setting:	Lever
Plate:	3/4 Plate
Double Roller:	Yes
Barrel:	Going
Regulator:	Reed
Hairspring:	Breguet
Adjusted:	Yes
Adjusted to Position:	Yes
Adjusted # of Positions:	6
Adjusted to Temperature:	Yes
Adjusted to Isochronism:	Yes
Railroad Grade:	Yes
Dial Feet Locations:	17.5, 39.0, 58.0
Case Screw Locations:	3.0, 38.0
Case:	Various
Run ID:	10607.G417.16S3252.169M390.O5501.L6544.21J976
Research References:	American Pocket Watches: Illinois Watch Co.: Volume 2. (William Meggers & Roy Ehrhardt) The 16 Size Illinois Bunn Special, 1913-1948. (Michael Chamelin)
Database Version:	v52.649
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Registry Population: Scoped for This Run Only	14 (1.43%)
$ Estimated Value (12 Month Change):	3.20% Analyzing 2,323 Sales

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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.