Pocket Watch Database

From the American Horology Archive:
Illinois Grade 186 Pocket Watch

Illinois Watch Co.

Grade: 186

Ruby Jewels

Manufacturer: Illinois
Manufacturer Location: Springfield, Illinois
Movement Serial Number: 2479885
Grade: 186
Model: 5
Estimated Production Year: 1912
Run Quantity: 200
Grade/Model Run: 26 of 28
Grade/Model Total Production: 4,470
Size: 16s
Jewels: 17j
Jewel Material: Ruby
Jewel Setting: Screw-Set
Movement Configuration: Openface
Movement Finish: Two-Tone
Movement Inlay Color: Gilt
Movement Setting: Lever
Plate: 3/4 Bridge Plate
Bridge Type: 3-Finger
Barrel: Going
Center Wheel Material: Gold
Regulator: Micrometric
Hairspring: Breguet
Standard Dial Type: Double-Sunk
Adjusted: Yes
Adjusted # of Positions: 4
Adjusted to Temperature: Yes
Railroad Grade: Yes
Dial Feet Locations: 24.5, 36.5, 55.5
Case Screw Locations: 3.5, 37.5
Case: Various
Run ID: 7807.186G47.16S2152.165M849.O3463.L5758.17J2249
Database Version: v52.365
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
13.46
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
45.33
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
0.079%
Registry Population: 3 (1.50%)

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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 17, 2021

Serial Number 2479859 was reported as inaccurate.

Note: Everything is correct except the movement color,
this one is a gilt two tone. The outer edge is
nickel but the rest is gold tone. Thank you!
Curator Response: Thanks for the report. The database has been updated accordingly.
Changes since this report was submitted:
Movement Finish changed from Nickel to Two-Tone

Anonymous · February 2, 2019

Serial Number 2479885 was reported as accurate.

Changes since this report was submitted:
Movement Finish changed from Nickel to Two-Tone
Plate changed from Bridge to 3/4 Bridge
Illinois Grade 186 Pocket Watch