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Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/illinois/2487561
Access Date: April 24, 2024
From the American Horology Archive:
Illinois Grade 187 Pocket Watch
Illinois Watch Co.

Grade: 187

Ruby Jewels

Manufacturer: Illinois
Manufacturer Location: Springfield, Illinois
Movement Serial Number: 2487561
Grade: 187
Model: 5
Estimated Production Year: 1912
Run Quantity: 500
Grade/Model Run: 16 of 16
Grade/Model Total Production: 3,750
Size: 16s
Jewels: 17j
Jewel Material: Ruby
Jewel Setting: Gold Settings (Screw-Set)
Movement Configuration: Openface
Movement Finish: Nickel
Movement Signing Style: Block Letter
Movement Inlay Color: Black
Movement Setting: Lever
Plate: 3/4 Bridge Plate
Bridge Type: 3-Finger
Double Roller: Yes
Barrel: Going
Regulator: Reed
Adjusted: Yes
Adjusted # of Positions: 5
Adjusted to Temperature: Yes
Adjusted to Isochronism: Yes
Railroad Grade: Yes
Dial Feet Locations: 24.5, 36.5, 55.5
Case Screw Locations: 3.5, 37.5
Case: Various
Run ID: 7844.187G29.16S2170.165M855.O3490.L5781.17J2268
Database Version: v52.245
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration		 11.29
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration		 38.01
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration		 0.066%
Registry Population: 17 (3.40%)
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Population Registry for This Run

Image Serial Number Run Position Primary Identification Method Discovery Date
There are 17 watches in the population registry for this run with 1 image.
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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 · February 28, 2023

Serial Number 2487237 was reported as accurate.

cmdraven 3991 · 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