Pocket Watch Database

From the American Horology Archive:
Illinois Grade 187 Pocket Watch

Illinois Watch Co.

Grade: 187

Ruby Jewels

Manufacturer: Illinois Question Mark
Manufacturer Location: Springfield, Illinois Question Mark
Movement Serial Number: 2487345 Question Mark
Grade: 187 Question Mark
Model: 5 Question Mark
Estimated Production Year: 1912 Question Mark
Run Quantity: 500 Question Mark
Grade/Model Run: 16 of 16 Question Mark
Grade/Model Total Production: 3,750 Question Mark
Size: 16s Question Mark
Jewels: 17j Question Mark
Jewel Material: Ruby Question Mark
Jewel Setting: Gold Settings (Screw-Set) Question Mark
Movement Configuration: Openface Question Mark
Movement Finish: Nickel Question Mark
Movement Signing Style: Block Letter Question Mark
Movement Inlay Color: Black Question Mark
Movement Setting: Lever Question Mark
Plate: 3/4 Bridge Plate Question Mark
Bridge Type: 3-Finger Question Mark
Double Roller: Yes Question Mark
Barrel: Going Question Mark
Regulator: Reed Question Mark
Adjusted: Yes Question Mark
Adjusted # of Positions: 5 Question Mark
Adjusted to Temperature: Yes Question Mark
Adjusted to Isochronism: Yes Question Mark
Railroad Grade: Yes Question Mark
Dial Feet Locations: 24.5, 36.5, 55.5 Question Mark
Case Screw Locations: 3.5, 37.5 Question Mark
Case: Various Question Mark
Run ID: 7844.187G29.16S2170.165M855.O3491.L5781.17J2268 Question Mark
Database Version: v52.518 Question Mark
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
11.29 Question Mark
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
38.01 Question Mark
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
0.066% Question Mark
Registry Population:
Scoped for This Run Only
18 (3.60%) Question Mark

Help Us Help Others By Improving the Database:

Does this information describe your movement accurately?

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 · February 28, 2023

Serial Number 2487237 was reported as accurate.

cmdraven 4083 · August 16, 2022

Serial Number 2487122 was reported as accurate.

Anonymous · April 19, 2021

Serial Number 2487290 was reported as accurate.

Anonymous · July 23, 2020

Serial Number 2487503 was reported as accurate.

Changes since this report was submitted:
Plate changed from Bridge to 3/4 Bridge

Anonymous · August 19, 2018

Serial Number 2487469 was reported as accurate.

Changes since this report was submitted:
Plate changed from Bridge to 3/4 Bridge

pmkid24 6 · August 25, 2017

Serial Number 2487261 was reported as accurate.

Changes since this report was submitted:
Plate changed from Bridge to 3/4 Bridge

Anonymous · June 17, 2017

Serial Number 2487165 was reported as accurate.

Changes since this report was submitted:
Plate changed from Bridge to 3/4 Bridge

Anonymous · February 22, 2017

Serial Number 2487561 was reported as accurate.

Changes since this report was submitted:
Plate changed from Bridge to 3/4 Bridge

Anonymous · October 3, 2015

Serial Number 2487561 was reported as accurate.

Changes since this report was submitted:
Plate changed from Bridge to 3/4 Bridge

TimeAntiquarian Founder Research Expert Historian Top Contributor Supporter 171 · August 25, 2015

Serial Number 2487241 was reported as accurate.

Changes since this report was submitted:
Plate changed from Bridge to 3/4 Bridge

TimeAntiquarian Founder Research Expert Historian Top Contributor Supporter 171 · August 25, 2015

Serial Number 2487241 was reported as accurate.

Changes since this report was submitted:
Plate changed from Bridge to 3/4 Bridge

TimeAntiquarian Founder Research Expert Historian Top Contributor Supporter 171 · August 25, 2015

Serial Number 2487241 was reported as accurate.

Changes since this report was submitted:
Plate changed from Bridge to 3/4 Bridge

Anonymous · January 19, 2015

Serial Number 2487349 was reported as accurate.

Changes since this report was submitted:
Plate changed from 3/4 to 3/4 Bridge

Anonymous · October 30, 2014

Serial Number 2487432 was reported as accurate.

Changes since this report was submitted:
Plate changed from 3/4 to 3/4 Bridge

Anonymous · June 3, 2013

Serial Number 2487599 was reported as accurate.

Changes since this report was submitted:
Plate changed from 3/4 to 3/4 Bridge

Anonymous · April 18, 2013

Serial Number 2487501 was reported as accurate.

Changes since this report was submitted:
Plate changed from 3/4 to 3/4 Bridge

Anonymous · November 25, 2012

Serial Number 2487275 was reported as accurate.

Changes since this report was submitted:
Plate changed from 3/4 to 3/4 Bridge
Illinois Grade 187 Pocket Watch