Illinois Pocket Watch: Serial Number 2430347 (Grade 187)

Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/illinois/2430347/movement

Access Date: April 18, 2024

From the American Horology Archive:

Illinois Watch Co.

Grade: 187

Ruby Jewels

Manufacturer:	Illinois
Manufacturer Location:	Springfield, Illinois
Movement Serial Number:	2430347
Grade:	187
Model:	5
Estimated Production Year:	1912
Run Quantity:	350
Grade/Model Run:	15 of 16
Grade/Model Total Production:	3,750
Size:	16s
Jewels:	17j
Jewel Material:	Ruby
Jewel Setting:	Screw-Set
Movement Configuration:	Openface
Movement Finish:	Nickel
Movement Signing Style:	Serif (Decorative)
Movement Inlay Color:	Black
Movement Setting:	Lever
Plate:	3/4 Bridge Plate
Bridge Type:	3-Finger
Double Roller:	Yes
Barrel:	Going
Center Wheel Material:	Gold
Regulator:	Micrometer
Adjusted:	Yes
Adjusted # of Positions:	5
Adjusted to Temperature:	Yes
Adjusted to Isochronism:	Yes
Railroad Grade:	Yes
Dial Feet Locations:	24.5, 36.5, 55.5
Case Screw Locations:	3.5, 37.5
Movement Markings:	Illinois Watch Co. Springfield 187 17 Ruby Jewels Adjusted Temperature 5 Positions Isochronism Double Roller
Case:	Various
Run ID:	7625.187G28.16S2080.165M830.O3342.L5691.17J2165
Database Version:	v52.235
Advanced Metrics
PWDB Absolute Rarity Index: Scoped for Grade/Size/Model/Configuration	11.29
PWDB Relative Rarity Index: Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration	38.01
Share of Production: Share within Manufacturer - Scoped for Grade/Size/Model/Configuration	0.066%
Registry Population:	6 (1.71%)

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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.

BobNeue Supporter 16 · March 21, 2022

Serial Number 2430473 was reported as accurate.

texnet 684 · December 26, 2021

Serial Number 2430257 was reported as accurate.