Pocket Watch Database

From the American Horology Archive:
Illinois Grade 143 Pocket Watch

Illinois Watch Co.

Grade: 143

Manufacturer: Illinois
Manufacturer Location: Springfield, Illinois
Movement Serial Number: 1168110
Grade: 143
Model: 1
Class: 3
Estimated Production Year: 1893
Run Quantity: 100
Grade/Model Run: 16 of 16
Grade/Model Total Production: 2,750
Variant Est. Production: 2,450 (6S-M1-15J-HGL)
Size: 6s
Jewels: 15j
Jewel Setting: Screw-Set
Movement Configuration: Hunting
Movement Finish: Gilt
Movement Setting: Lever
Plate: 3/4 Plate
Barrel: Going
Balance Type: Expansion
Regulator: Plain
Hairspring: Flat
Standard Dial Type: Single-Sunk
Adjusted: No
Railroad Grade: No
Dial Feet Locations: 7.5, 40.0, 58.0
Case Screw Locations: 19.5, 49.5
U.S. Patents: 340386, 345193
Movement Markings: Illinois Watch Co.
Springfield
Safety Pinion
Case: Various
Run ID: 2285.143G16.6S201.61M201.H1148.L1561.15J450
Database Version: v52.270
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
8.28
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
28.39
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
0.048%
Registry Population: 1 (1.00%)

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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.


Anonymous · January 12, 2014

Serial Number 1168110 was reported as accurate.

Changes since this report was submitted:
Movement Finish changed from Nickel to Gilt

Anonymous · January 12, 2014

Serial Number 1168110 was reported as accurate.

Changes since this report was submitted:
Movement Finish changed from Nickel to Gilt
Illinois Grade 143 Pocket Watch