Pocket Watch Database

From the American Horology Archive:
Illinois Grade 275 Pocket Watch

Illinois Watch Co.

Grade: 275

Manufacturer: Illinois
Manufacturer Location: Springfield, Illinois
Movement Serial Number: 3070623
Grade: 275
Model: 3
Estimated Production Year: 1916
Run Quantity: 2,000
Total Production: 41,400
Size: 12s
Jewels: 21j
Movement Configuration: Openface
Movement Finish: Nickel
Movement Setting: Pendant
Plate: Bridge Plate
Bridge Type: Center
Barrel: Going
Adjusted: Yes
Adjusted # of Positions: 3
Adjusted to Temperature: Yes
Railroad Grade: No
Dial Feet Locations: 20.5, 39.0, 55.0
Case Screw Locations: 2.5, 35.5
Case: Various
Registry Population: 11 (0.55%)
Database Version: v49.391

Population Registry for This Run

Image Serial Number Run Position Primary Identification Method Discovery Date
1 3069172 #172 Collection July 09, 2022
2 3069330 #330 Marketplace November 28, 2017
3 3069397 #397 Marketplace July 16, 2018
4 3069497 #497 Marketplace June 30, 2020
5 3069555 #555 Marketplace December 01, 2016
6 3069852 #852 Marketplace December 31, 2019
7 3070109 #1109 Marketplace August 16, 2013
8 3070470 #1470 Marketplace October 30, 2017
9 3070550 #1550 Marketplace September 06, 2013
10 3070623 #1623 Collection November 22, 2018
11 3070812 #1812 Marketplace January 29, 2022
Standard Deviation of Known Examples: 593.07 (Expected: 577.49, Δ15.58/0.78%)

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Does this information describe your movement accurately?

Data Verification Reports

3069001
Verification Serial Map
3071000

Blicquer Supporter 47 · July 10, 2022

Serial Number 3069172 was reported as accurate.

Anonymous · December 13, 2020

Serial Number 3069497 was reported as accurate.

Anonymous · June 29, 2020

Serial Number 3069337 was reported as accurate.

Anonymous · February 19, 2020

Serial Number 3069382 was reported as accurate.

Anonymous · December 12, 2018

Serial Number 3069639 was reported as accurate.

v3ngence 32 · November 22, 2018

Serial Number 3070623 was reported as accurate.

Anonymous · May 29, 2018

Serial Number 3069190 was reported as inaccurate.

Note: My movement was evidently made for the Burlington
Watch Co & was so signed accordingly, it's also
decked out with a Burlington-signed dial

rtwatches 943 · February 6, 2018

Serial Number 3070655 was reported as accurate.

Anonymous · March 26, 2015

Serial Number 3070776 was reported as inaccurate.

No further details were submitted with the report.

Anonymous · June 13, 2013

Serial Number 3070783 was reported as accurate.

Anonymous · October 18, 2012

Serial Number 3070560 was reported as accurate.

Anonymous · October 14, 2012

Serial Number 3070387 was reported as accurate.

Anonymous · April 21, 2012

Serial Number 3069221 was reported as accurate.

Anonymous · April 12, 2012

Serial Number 3069221 was reported as accurate.

Illinois Grade 275 Pocket Watch