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: 3017726
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 3016074 #74 Inferred
2 3016164 #164 Marketplace February 26, 2013
3 3016184 #184 Marketplace March 26, 2016
4 3016509 #509 Marketplace June 30, 2015
5 3017070 #1070 Collection November 10, 2016
6 3017078 #1078 Inferred
7 3017116 #1116 Collection October 26, 2017
8 3017279 #1279 Marketplace August 28, 2021
9 3017656 #1656 Marketplace May 04, 2014
10 3017726 #1726 Collection April 20, 2013
11 3017785 #1785 Marketplace October 06, 2020
Standard Deviation of Known Examples: 642.46 (Expected: 577.49, Δ64.96/3.25%)

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Data Verification Reports

3016001
Verification Serial Map
3018000

Anonymous · October 1, 2021

Serial Number 3017279 was reported as accurate.

Anonymous · September 5, 2021

Serial Number 3017279 was reported as accurate.

dlturnerjr 1 · September 20, 2020

Serial Number 3017634 was reported as accurate.

Anonymous · August 25, 2020

Serial Number 3017557 was reported as accurate.

Anonymous · May 15, 2020

Serial Number 3016468 was reported as accurate.

Anonymous · October 6, 2019

Serial Number 3016776 was reported as accurate.

PsychoDave 6 · September 5, 2019

Serial Number 3017785 was reported as accurate.

Anonymous · December 10, 2016

Serial Number 3017427 was reported as accurate.

afterhours 26 · November 10, 2016

Serial Number 3017070 was reported as accurate.

Illinois Grade 275 Pocket Watch