Pocket Watch Database


From the American Horology Archive:
Illinois Grade 305 Pocket Watch
Illinois Grade 305 Pocket Watch

Illinois Watch Co.

Grade: 305

Mixed Run: Model 6 and Model 7 Movements

Manufacturer: Illinois Question Mark
Manufacturer Location: Springfield, Illinois Question Mark
Movement Serial Number: 3791993 Question Mark
Grade: 305 Question Mark
Model: 7 Question Mark
Estimated Production Year: 1920 Question Mark
Run Quantity: 2,300 Question Mark
Grade/Model Run: 82 of 177 Question Mark
Grade/Model Total Production: 150,270 Question Mark
Size: 16s Question Mark
Jewels: 17j Question Mark
Movement Configuration: Openface 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 to Temperature: Yes Question Mark
Railroad Grade: No Question Mark
Dial Feet Locations: 17.5, 39.0, 58.0 Question Mark
Case Screw Locations: 3.0, 38.0 Question Mark
Case: Various Question Mark
Run ID: 11101.305G118.16S3504.167M585.O5915.P3835.17J3626 Question Mark
Database Version: v52.517 Question Mark
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
451.98 Question Mark
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
1,525.51 Question Mark
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
2.641% Question Mark
Registry Population:
Scoped for This Run Only
19 (0.83%) Question Mark
$ Estimated Value (12 Month Change): 2.04% Analyzing 903 Sales Question Mark
Research Note: Original records indicate Model 7 (Openface). However, multiple reports indicate Model 6 (Hunting).

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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 · December 20, 2024

Serial Number 3791905 was reported as accurate.

Anonymous · July 15, 2023

Serial Number 3790542 was reported as accurate.

Ericrose 1 · October 9, 2019

Serial Number 3791993 was reported as accurate.

Changes since this report was submitted:
Movement Configuration changed from Hunting to Openface
Factory Model changed from 6 to 7

Anonymous · September 25, 2019

Serial Number 3791993 was reported as inaccurate.

Note: Thanks for the info about the Model 10. It is
definitely NOT a Model 6. I am currently servicing
it for a client, and it is an open face (not a
sidewinder). If you like, once I have completed
the service I can send a photo to verify.
Curator Response: Perfect. A photo would be beneficial for evaluation. I suspect it is a Model 7 (Openface) since this run appears to be mixed with Model 6 and Model 7. Thanks!
Changes since this report was submitted:
Movement Configuration changed from Hunting to Openface
Factory Model changed from 6 to 7

Anonymous · September 20, 2019

Serial Number 3791993 was reported as inaccurate.

Note: Illinois Serial 3791993 appears to be a Model 10,
16 size, 17 jewel, open face, 3/4 bridge (faux
center bridge), stem wind, pendant set, damascened
nickle, "adjusted", "double roller", with swan
neck regulator adjustment.
Curator Response: Thanks for the report. The Model 10 was exclusively manufactured in the "Sangamo Special" grade. The Grade 305 was produced in Model 6 (Hunting) and Model 7 (Openface).
Changes since this report was submitted:
Movement Configuration changed from Hunting to Openface
Factory Model changed from 6 to 7

Anonymous · March 19, 2019

Serial Number 3790134 was reported as inaccurate.

Note: Not an open face. Hunting case and the two
lower silver discs are opposite.

ABUMALEK 97 · June 7, 2018

Serial Number 3790221 was reported as accurate.

Anonymous · March 31, 2018

Serial Number 3792015 was reported as accurate.

Anonymous · June 20, 2017

Serial Number 3790435 was reported as accurate.

Oboyo2 5 · August 17, 2016

Serial Number 3791312 was reported as accurate.

Anonymous · February 23, 2016

Serial Number 3790192 was reported as accurate.

Anonymous · January 28, 2016

Serial Number 3791052 was reported as accurate.

Anonymous · July 30, 2015

Serial Number 3791846 was reported as accurate.

Anonymous · May 31, 2015

Serial Number 3791130 was reported as accurate.

Anonymous · January 26, 2015

Serial Number 3791453 was reported as accurate.

Anonymous · August 26, 2014

Serial Number 3790803 was reported as accurate.

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

Anonymous · February 16, 2014

Serial Number 3790808 was reported as accurate.

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

luckyronn 29 · January 11, 2014

Serial Number 3790546 was reported as inaccurate.

Note: This S/N is a Model 6 hunting movement, Thanks
for your hard work..
Changes since this report was submitted:
Plate changed from 3/4 to Bridge

Anonymous · December 20, 2013

Serial Number 3791364 was reported as accurate.

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

Anonymous · February 5, 2013

Serial Number 3790601 was reported as accurate.

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

Anonymous · February 2, 2013

Serial Number 3790640 was reported as inaccurate.

No further details were submitted with the report.
Changes since this report was submitted:
Plate changed from 3/4 to Bridge
Illinois Grade 305 Pocket Watch
Illinois Grade 305 Pocket Watch