Pocket Watch Database


From the American Horology Archive:
Illinois Grade 306 Pocket Watch

Illinois Watch Co.

Grade: 306

Manufacturer: Illinois Question Mark
Manufacturer Location: Springfield, Illinois Question Mark
Movement Serial Number: 2175740 Question Mark
Grade: 306 Question Mark
Model: 6 Question Mark
Estimated Production Year: 1909 Question Mark
Run Quantity: 80 Question Mark
Grade/Model Run: 1 of 32 Question Mark
Grade/Model Total Production: 5,330 Question Mark
Size: 16s Question Mark
Jewels: 17j Question Mark
Movement Configuration: Hunting Question Mark
Movement Finish: Nickel Question Mark
Movement Setting: Pendant Question Mark
Plate: Bridge Plate Question Mark
Double Roller: Yes Question Mark
Barrel: Going Question Mark
Adjusted: Yes Question Mark
Adjusted # of Positions: 3 Question Mark
Adjusted to Temperature: Yes Question Mark
Railroad Grade: No Question Mark
Dial Feet Locations: 17.5, 39.0, 58.0 Question Mark
Case Screw Locations: 18.0, 53.0 Question Mark
Case: Various Question Mark
Run ID: 6632.306G1.16S1679.166M10.H3346.P855.17J1742 Question Mark
Database Version: v52.431 Question Mark
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
16.04 Question Mark
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
54.07 Question Mark
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
0.094% Question Mark
Registry Population:
Scoped for This Run Only
3 (3.75%) Question Mark

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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 · April 9, 2024

Serial Number 2175732 was reported as accurate.

cmdraven 4041 · January 2, 2023

Serial Number 2175701 was reported as accurate.

Durant1 42 · October 26, 2022

Serial Number 2175740 was reported as accurate.

Anonymous · July 4, 2019

Serial Number 2175752 was reported as accurate.

Joerealtor 74 · February 15, 2018

Serial Number 2175762 was reported as inaccurate.

Note: marked, "PENNSYLVANIA SPECIAL"
Changes since this report was submitted:
Plate changed from 3/4 to Bridge
Illinois Grade 306 Pocket Watch