Pocket Watch Database
https://pocketwatchdatabase.com/search/result/illinois/20326
Access Date: January 27, 2023
From the American Horology Archive:

Illinois Watch Co.
Grade: Hoyt
Manufacturer: | Illinois | ![]() |
Manufacturer Location: | Springfield, Illinois | ![]() |
Movement Serial Number: | 20326 | ![]() |
Grade: | Hoyt | ![]() |
Model: | 1 | ![]() |
Estimated Production Date: | June 1874 | ![]() |
Run Quantity: | 2,000 | ![]() |
Grade/Model Total Production: | 14,400 | ![]() |
Size: | 18s | ![]() |
Jewels: | 9j | ![]() |
Jewel Setting: | Burnished Jewels | ![]() |
Movement Configuration: | Adaptable | ![]() |
Movement Finish: | Gilt | ![]() |
Movement Setting: | Key | ![]() |
Plate: | Full Plate | ![]() |
Barrel: | Going | ![]() |
Balance Type: | Expansion | ![]() |
Train: | Coarse | ![]() |
Regulator: | Plain | ![]() |
Hairspring: | Flat | ![]() |
Standard Dial Type: | Single-Sunk | ![]() |
Adjusted: | No | ![]() |
Railroad Grade: | No | ![]() |
Dial Feet Locations: | 16.5, 36.5, 53.0 | ![]() |
Case Screw Locations: | O-36.5, H-51.5 | ![]() |
Movement Markings: | Hoyt Springfield, Ill. Patent Pinion |
|
Case: | Various | ![]() |
Registry Population: | 6 (0.30%) | ![]() |
Database Version: | v49.708 | ![]() |
Production Metrics Tree: Grade Hoyt
Target Profile: 18S-M1-9J-HGK-U
Illinois Grade Hoyt (All Variations): 15,000 ETP | |
18S: 15,000 100.00% 18s, Grade Hoyt |
|
18S-M1: 14,400 96.00% 18s, Grade Hoyt, Model 1 |
Other: 600
Other Models or Unclassified |
18S-M1-9J: 14,400 96.00% 18s, Grade Hoyt, Model 1, 9 Jewels |
|
18S-M1-9J-HGK: 14,400 96.00% 18s, Grade Hoyt, Model 1, 9 Jewels, Adaptable/Key/Gilt |
|
18S-M1-9J-HGK-U: 14,400 96.00% |
Population Registry for This Run
Image | Serial Number | Run Position | Primary Identification Method | Discovery Date | |
---|---|---|---|---|---|
1 |
![]() Image Credit: DustinN |
20259 | #259 | Collection | June 21, 2022 |
2 |
![]() Image Credit: pivotkiller |
20326 | #326 | Collection | March 26, 2015 |
3 | 20327 | #327 | Inferred | ||
4 | 20341 | #341 | Inferred | ||
5 |
Image Credit: esoxhunter |
20398 | #398 | Collection | August 10, 2020 |
6 |
![]() Image Credit: winterwolf |
21255 | #1255 | Collection | February 26, 2019 |
Standard Deviation of Known Examples: 380.14 (Expected: 577.49, Δ197.36/9.87%) |
Help Us Help Others By Improving the Database:
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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.
RomanWatchRepair 28 · February 20, 2017
Serial Number 21636 was reported as accurate.
SonofBarb 1 · December 15, 2016
Serial Number 20174 was reported as accurate.
Danca4pu 1 · October 5, 2016
Serial Number 20341 was reported as inaccurate.
daddo46 987 · July 17, 2015
Serial Number 21048 was reported as accurate.
Jim90078 35 · December 11, 2013
Serial Number 21544 was reported as accurate.

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