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: 3155818
Grade: 107
Model: 9
Class: 1
Estimated Production Year: 1917
Run Quantity: 900
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: v49.391

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 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 3155774 #674 Collection November 10, 2017
10 3155818 #718 Collection February 26, 2019
Standard Deviation of Known Examples: 228.61 (Expected: 259.95, Δ31.34/3.48%)

Help Us Help Others By Improving the Database:

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Data Verification Reports

3155101
Verification Serial Map
3156000

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