Pocket Watch Database


From the American Horology Archive:
Illinois Grade 273 Pocket Watch

Illinois Watch Co.

Grade: 273

Custom Train Bridge

Manufacturer: Illinois Question Mark
Manufacturer Location: Springfield, Illinois Question Mark
Movement Serial Number: 1748949 Question Mark
Grade: 273 Question Mark
Model: 2 Question Mark
Estimated Production Year: 1908 Question Mark
Run Quantity: 100 Question Mark
Grade/Model Run: 1 of 71 Question Mark
Grade/Model Total Production: 9,105 Question Mark
Size: 12s Question Mark
Jewels: 17j Question Mark
Movement Configuration: Hunting Question Mark
Movement Finish: Nickel Question Mark
Movement Setting: Lever Question Mark
Plate: Bridge Plate Question Mark
Bridge Type: Custom Question Mark
Barrel: Going Question Mark
Adjusted: Yes Question Mark
Adjusted to Temperature: No Question Mark
Railroad Grade: No Question Mark
Dial Feet Locations: 20.5, 39.0, 55.0 Question Mark
Case Screw Locations: 17.5, 50.5 Question Mark
Case: Various Question Mark
Run ID: 5151.273G1.12S5.122M2.H2679.L4286.17J1129 Question Mark
Database Version: v52.450 Question Mark
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
25.90 Question Mark
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
87.35 Question Mark
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
0.151% Question Mark
Registry Population:
Scoped for This Run Only
1 (1.00%) Question Mark
Research Note: Factory records designate this run as Grade 22. However, observations in this run are more consistent with the Grade 273 classification. If true, this run represents the beginning of the Grade 273 production, so the "22" may have been a temporary classification in factory records while the grade was being established.

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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.


Radiotron Supporter 48 · April 20, 2020

Serial Number 1748949 was reported as inaccurate.

Note: Mine is a Senate. I thought it was 1904 grade 273.
It is pendant set.
Curator Response: Thanks for the report and images. I agree with your assessment. The movement is more consistent with the Grade 273 classification. The database has been updated and noted accordingly.
Changes since this report was submitted:
Grade changed from 22 to 273
Plate changed from 3/4 to Bridge
Illinois Grade 273 Pocket Watch