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: 3941777
Grade: 107
Model: 9
Class: 1
Estimated Production Year: 1921
Run Quantity: 1,000
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 (1.00%)
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 3941029 #29 Marketplace September 18, 2018
2 3941123 #123 Collection May 15, 2022
3 3941222 #222 Marketplace April 13, 2022
4 3941418 #418 Marketplace March 25, 2021
5 3941548 #548 Collection July 07, 2021
6 3941571 #571 Inferred
7 3941727 #727 Marketplace March 11, 2015
8 3941777 #777 Collection September 17, 2015
9 3941844 #844 Marketplace February 19, 2019
10 3941845 #845 Marketplace July 14, 2016
Standard Deviation of Known Examples: 301.82 (Expected: 288.82, Δ13.00/1.30%)

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Data Verification Reports

3941001
Verification Serial Map
3942000

Anonymous · February 23, 2020

Serial Number 3941894 was reported as accurate.

Anonymous · February 19, 2019

Serial Number 3941844 was reported as accurate.

Anonymous · January 26, 2019

Serial Number 3941543 was reported as accurate.

Anonymous · May 15, 2018

Serial Number 3941854 was reported as accurate.

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

Anonymous · April 25, 2018

Serial Number 3941854 was reported as accurate.

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

bwcrtime 178 · January 23, 2018

Serial Number 3941355 was reported as accurate.

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

Anonymous · April 23, 2015

Serial Number 3941692 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 23, 2015

Serial Number 3941692 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

pawnone 10 · October 11, 2014

Serial Number 3941160 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 · February 2, 2014

Serial Number 3941457 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 · February 2, 2014

Serial Number 3941457 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 · January 31, 2014

Serial Number 3941457 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 9, 2012

Serial Number 3941142 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