Pocket Watch Database

From the American Horology Archive:
Illinois Grade 437 Pocket Watch

Illinois Watch Co.

Grade: 437

Extra Thin.

Manufacturer: Illinois Question Mark
Manufacturer Location: Springfield, Illinois Question Mark
Movement Serial Number: 3650289 Question Mark
Grade: 437 Question Mark
Model: 1XT Question Mark
Estimated Production Year: 1920 Question Mark
Run Quantity: 400 Question Mark
Grade/Model Run: 5 of 8 Question Mark
Grade/Model Total Production: 2,060 Question Mark
Size: 12s Question Mark
Jewels: 19j Question Mark
Movement Configuration: Openface Question Mark
Movement Finish: Nickel Question Mark
Movement Setting: Pendant Question Mark
Plate: Bridge Plate Question Mark
Bridge Type: Center Question Mark
Barrel: Motor Question Mark
Adjusted: Yes Question Mark
Adjusted to Temperature: Yes Question Mark
Railroad Grade: No Question Mark
Dial Feet Locations: None Question Mark
Case Screw Locations: 5.0, 35.0 Question Mark
Case: Various Question Mark
Run ID: 10892.437G5.12S1464.M15.O5747.P3686.19J525 Question Mark
Database Version: v52.515 Question Mark
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
6.20 Question Mark
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
20.83 Question Mark
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
0.036% Question Mark
Registry Population:
Scoped for This Run Only
3 (0.75%) 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.


JerryT Waltham Expert Small Watch Expert 425 · May 24, 2021

Serial Number 3650230 was reported as inaccurate.

Note: The grade 437 is a 12-size XT 1st model
Curator Response: Thanks for the report. The database has been updated accordingly.
Changes since this report was submitted:
Size changed from 13 to 12
Factory Model changed from 1 to 1XT

ralph1 113 · January 22, 2021

Serial Number 3650289 was reported as inaccurate.

No further details were submitted with the report.
Changes since this report was submitted:
Size changed from 13 to 12
Factory Model changed from 1 to 1XT

packref 9 · November 13, 2020

Serial Number 3650215 was reported as accurate.

Changes since this report was submitted:
Size changed from 13 to 12
Factory Model changed from 1 to 1XT

Anonymous · November 9, 2020

Serial Number 3650292 was reported as accurate.

Changes since this report was submitted:
Size changed from 13 to 12
Factory Model changed from 1 to 1XT

Anonymous · April 29, 2020

Serial Number 3650515 was reported as accurate.

Changes since this report was submitted:
Size changed from 13 to 12
Factory Model changed from 1 to 1XT

Anonymous · January 20, 2014

Serial Number 3650467 was reported as accurate.

Changes since this report was submitted:
Size changed from 13 to 12
Factory Model changed from 1 to 1XT

TimeAntiquarian Founder Research Expert Historian Top Contributor Supporter 171 · July 30, 2013

Serial Number 3650201 was reported as accurate.

Changes since this report was submitted:
Size changed from 13 to 12
Factory Model changed from 1 to 1XT

Anonymous · November 20, 2012

Serial Number 3650255 was reported as inaccurate.

Note: Mine has 19 jewels. Does not match a movement I
found so far. For more information you can contact
me at dronden(at)gmail
Changes since this report was submitted:
Grade changed from 539 to 437
Size changed from 13 to 12
Jewels changed from 21j to 19j
Factory Model changed from 1 to 1XT
Illinois Grade 437 Pocket Watch