Pocket Watch Database

From the American Horology Archive:
Illinois Grade 107 Pocket Watch

Illinois Watch Co.

Grade: 107

Manufacturer: Illinois
Manufacturer Location: Springfield, Illinois
Movement Serial Number: 3155774
Grade: 107
Model: 9
Class: 1
Estimated Production Year: 1917
Run Quantity: 900
Grade/Model Total Production: 88,000
Size: 16s
Jewels: 21j
Movement Configuration: Openface
Movement Finish: Nickel
Movement Setting: Lever
Plate: Bridge Plate
Bridge Type: False Center
Double Roller: Yes
Barrel: Going
Adjusted: Yes
Adjusted to Position: Yes
Adjusted to Temperature: Yes
Railroad Grade: Limited Approval
Dial Feet Locations: 17.5, 39.0, 58.0
Case Screw Locations: 3.0, 38.0
Case: Various
Registry Population: 10 (1.11%)
Database Version: v49.701

Production Metrics Tree: Grade 107

Target Profile: 16S-M9-21J-ONL-APT

Illinois Grade 107 (All Variations): 110,250 ETP
16S: 94,100 85.35%
16s, Grade 107
Other: 16,150
Other Sizes or Unclassified
16S-M9: 88,000 79.82%
16s, Grade 107, Model 9
Other: 6,100
Other Models or Unclassified
16S-M9-21J: 88,000 79.82%
16s, Grade 107, Model 9, 21 Jewels
16S-M9-21J-ONL: 88,000 79.82%
16s, Grade 107, Model 9, 21 Jewels, Openface/Lever/Nickel
16S-M9-21J-ONL-APT: 88,000 79.82%

Population Registry for This Run

Image Serial Number Run Position Primary Identification Method Discovery Date
1 3155169 #69 Marketplace August 18, 2015
2 3155230 #130 Marketplace August 13, 2022
3 3155246 #146 Marketplace February 25, 2015
4 3155381 #281 Collection March 26, 2014
5
Image Credit: jgarbolino
3155406 #306 Collection November 19, 2022
6 3155446 #346 Collection November 04, 2016
7 3155609 #509 Marketplace April 24, 2014
8 3155633 #533 Collection April 19, 2018
9
Image Credit: howdydave
3155774 #674 Collection November 10, 2017
10
Image Credit: czechmauseritis
3155818 #718 Collection February 26, 2019
Standard Deviation of Known Examples: 228.61 (Expected: 259.95, Δ31.34/3.48%)

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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 31, 2022

Serial Number 3155554 was reported as accurate.

czechmauseritis 43 · March 5, 2019

Serial Number 3155818 was reported as accurate.

RaymondJames 1 · April 3, 2018

Serial Number 3155757 was reported as accurate.

Changes since this report was submitted:
Railroad Grade changed from Yes to Limited Approval

howdydave 10 · November 10, 2017

Serial Number 3155774 was reported as accurate.

Changes since this report was submitted:
Railroad Grade changed from Yes to Limited Approval

howdydave 10 · November 10, 2017

Serial Number 3155774 was reported as inaccurate.

Note: I am not sure whether this is a 3/4 plate (the
default) or a bridge plate.
Changes since this report was submitted:
Railroad Grade changed from Yes to Limited Approval
Plate changed from 3/4 to Bridge

Anonymous · April 9, 2016

Serial Number 3155338 was reported as accurate.

Changes since this report was submitted:
Railroad Grade changed from Yes to Limited Approval
Plate changed from 3/4 to Bridge

Anonymous · November 16, 2015

Serial Number 3155381 was reported as accurate.

Changes since this report was submitted:
Railroad Grade changed from Yes to Limited Approval
Plate changed from 3/4 to Bridge

Anonymous · April 30, 2014

Serial Number 3155995 was reported as accurate.

Changes since this report was submitted:
Railroad Grade changed from Yes to Limited Approval
Plate changed from 3/4 to Bridge

Anonymous · April 30, 2014

Serial Number 3155995 was reported as inaccurate.

No further details were submitted with the report.
Changes since this report was submitted:
Railroad Grade changed from Yes to Limited Approval
Plate changed from 3/4 to Bridge

Anonymous · October 20, 2013

Serial Number 3155415 was reported as accurate.

Changes since this report was submitted:
Railroad Grade changed from Yes to Limited Approval
Plate changed from 3/4 to Bridge

Anonymous · October 9, 2013

Serial Number 3155381 was reported as accurate.

Changes since this report was submitted:
Railroad Grade changed from Yes to Limited Approval
Plate changed from 3/4 to Bridge

Anonymous · November 27, 2012

Serial Number 3155740 was reported as accurate.

Changes since this report was submitted:
Railroad Grade changed from Yes to Limited Approval
Plate changed from 3/4 to Bridge

Anonymous · September 26, 2012

Serial Number 3155740 was reported as accurate.

Changes since this report was submitted:
Railroad Grade changed from Yes to Limited Approval
Plate changed from 3/4 to Bridge
Illinois Grade 107 Pocket Watch