Illinois Pocket Watch: Serial Number 4642726 (Grade Sangamo Special)

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Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/illinois/4642726

Access Date: May 25, 2025

From the American Horology Archive:

Illinois Watch Co.

Grade: Sangamo Special

Manufacturer:	Illinois
Manufacturer Location:	Springfield, Illinois
Movement Serial Number:	4642726
Grade:	Sangamo Special
Variation:	U60HR
Model:	13
Estimated Production Year:	1925
Run Quantity:	1,000
Grade/Model Run:	6 of 13
Grade/Model Total Production:	11,200
Variant Est. Production:	8,000 (17S-M13-23J-ONL-A6PTI-U60HR)
Size:	17s
Jewels:	23j
Jewel Material:	Ruby & Sapphire
Jewel Setting:	Raised Gold Settings (Screw-Set)
Movement Configuration:	Openface
Movement Finish:	Nickel
Movement Setting:	Lever
Plate:	Bridge Plate
Bridge Type:	False Center
Double Roller:	Yes
Barrel:	60-Hr. Motor
Train Material:	Gold
Center Wheel Material:	Gold
Hairspring:	Breguet
Pallet Jewel Material:	Ruby
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:	11927.G48.17S10.1713M6.O6672.L6968.23J260
Database Version:	v52.650
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Registry Population: Scoped for This Run Only	22 (2.20%)

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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.