Pocket Watch Database


From the American Horology Archive:
Illinois Grade 151 Pocket Watch

Illinois Watch Co.

Grade: 151

Plate Is Recessed.

Manufacturer: Illinois Question Mark
Manufacturer Location: Springfield, Illinois Question Mark
Movement Serial Number: 527429 Question Mark
Grade: 151 Question Mark
Model: 2 Question Mark
Estimated Production Year: 1884 Question Mark
Run Quantity: 4,000 Question Mark
Grade/Model Run: 7 of 22 Question Mark
Grade/Model Total Production: 18,100 Question Mark
Size: 8s Question Mark
Jewels: 7j Question Mark
Movement Configuration: Hunting Question Mark
Movement Finish: Gilt Question Mark
Movement Setting: Lever Question Mark
Plate: 3/4 Plate Question Mark
Barrel: Going Question Mark
Balance Type: Expansion Question Mark
Regulator: Plain Question Mark
Hairspring: Flat Question Mark
Adjusted: No Question Mark
Railroad Grade: No Question Mark
Dial Feet Locations: 18.0, 40.5, 49.5 Question Mark
Case Screw Locations: 15.0, 45.0 Question Mark
U.S. Patents: 238464 Question Mark
Movement Markings: Illinois Watch Co.
Springfield, Ill.
Patent Pinion
Case: Various Question Mark
Run ID: 1255.151G7.8S51.82M36.H520.L853.7J225 Question Mark
Database Version: v52.518 Question Mark
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
54.49 Question Mark
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
183.84 Question Mark
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
0.318% Question Mark
Registry Population:
Scoped for This Run Only
19 (0.48%) 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.


jnickell Supporter 21 · March 4, 2024

Serial Number 527429 was reported as accurate.

Rcardkidz 4132 · November 18, 2023

Serial Number 528986 was reported as accurate.

MoatsJustin1 top-contributor 5272 · November 14, 2023

Serial Number 529873 was reported as accurate.

MoatsJustin1 top-contributor 5272 · November 14, 2023

Serial Number 526949 was reported as accurate.

Rcardkidz 4132 · November 9, 2023

Serial Number 528952 was reported as accurate.

Anonymous · August 16, 2023

Serial Number 529282 was reported as accurate.

Anonymous · December 19, 2022

Serial Number 528547 was reported as accurate.

Anonymous · July 10, 2021

Serial Number 527213 was reported as accurate.

Anonymous · April 19, 2021

Serial Number 527313 was reported as accurate.

Anonymous · June 1, 2019

Serial Number 527847 was reported as accurate.

Anonymous · December 2, 2016

Serial Number 529079 was reported as accurate.

Anonymous · September 20, 2016

Serial Number 529439 was reported as accurate.

Anonymous · August 25, 2015

Serial Number 529151 was reported as accurate.

Changes since this report was submitted:
Plate changed from Full to 3/4

Anonymous · July 12, 2015

Serial Number 528462 was reported as accurate.

Changes since this report was submitted:
Plate changed from Full to 3/4

rjbeck 150 · April 2, 2015

Serial Number 529742 was reported as accurate.

Changes since this report was submitted:
Plate changed from Full to 3/4

Anonymous · October 4, 2013

Serial Number 526099 was reported as inaccurate.

Note: change to 3/4 plate
Changes since this report was submitted:
Plate changed from Full to 3/4

Anonymous · April 23, 2013

Serial Number 528111 was reported as inaccurate.

Note: The Illinosi 8S movement is a 3/4 plate mvmt, not
full-plate.
Changes since this report was submitted:
Plate changed from Full to 3/4

Anonymous · August 13, 2012

Serial Number 529190 was reported as accurate.

Changes since this report was submitted:
Plate changed from Full to 3/4
Illinois Grade 151 Pocket Watch