Illinois Pocket Watch: Serial Number 5421883 (Grade 163 Bunn Special)

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Illinois Bunn Special 163 Type 1

Check Price Source: eBay.com

Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/illinois/5421883/link

Access Date: January 17, 2025

From the American Horology Archive:

Illinois Watch Co.

Grade: 163 Bunn Special

Mixed Run: Type I, Type IIE, Type II, Type IIE (Model 14 & Model 15)

Manufacturer:	Illinois
Manufacturer Location:	Springfield, Illinois
Movement Serial Number:	5421883
Grade:	163 Bunn Special
Variation:	163 Type IIE
Model:	15
Estimated Production Year:	1931
Run Quantity:	400
Grade/Model Run:	2 of 4
Grade/Model Total Production:	2,400
Size:	16s
Jewels:	23j
Movement Configuration:	Openface
Movement Finish:	Nickel
Finish Pattern:	Ray
Movement Setting:	Lever
Plate:	3/4 Plate
Double Roller:	Yes
Barrel:	60-Hr. Motor
Hairspring:	Elinvar
Adjusted:	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:	12647.G8.16S4090.1615M2.O7224.L7157.23J294
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:	v52.560
Advanced Metrics
PWDB Absolute Rarity Index: Scoped for Grade/Size/Model/Configuration	7.23
PWDB Relative Rarity Index: Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration	24.29
Share of Production: Share within Manufacturer - Scoped for Grade/Size/Model/Configuration	0.042%
Registry Population: Scoped for This Run Only	15 (3.75%)
Research Note: Mixed Run: 163 Type II (rare) and 163 Type IIE [Chamelin]. #5421753: Verified as Type IIE [JH].

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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.