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: 1478857
Grade: 186
Model: 4
Estimated Production Year: 1899
Run Quantity: 100
Grade/Model Run: 8 of 21
Grade/Model Total Production: 2,930
Size: 16s
Jewels: 17j
Jewel Material: Ruby
Jewel Setting: Screw-Set
Movement Configuration: Hunting
Movement Finish: Nickel
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: 18.5, 52.5
Case: Various
Run ID: 4017.186G12.16S748.164M329.H2136.L3153.17J691
Database Version: v52.245
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
8.82
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
29.67
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
0.052%
Registry Population: 2 (2.00%)

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 · July 23, 2022

Serial Number 1478871 was reported as accurate.

Changes since this report was submitted:
Jewels changed from ? to 17j
Railroad Grade changed from No to Yes

Anonymous · May 23, 2015

Serial Number 1478857 was reported as accurate.

Changes since this report was submitted:
Jewels changed from ? to 17j
Railroad Grade changed from No to Yes
Plate changed from 3/4 to 3/4 Bridge

Anonymous · August 24, 2013

Serial Number 1478811 was reported as accurate.

Changes since this report was submitted:
Jewels changed from ? to 17j
Railroad Grade changed from No to Yes
Plate changed from 3/4 to 3/4 Bridge

Anonymous · August 24, 2013

Serial Number 1478811 was reported as accurate.

Changes since this report was submitted:
Jewels changed from ? to 17j
Railroad Grade changed from No to Yes
Plate changed from 3/4 to 3/4 Bridge

Anonymous · April 30, 2013

Serial Number 1478857 was reported as inaccurate.

Note: Movement is 17j, not 0j.
This particular one is a 3 finger bridge.
Changes since this report was submitted:
Jewels changed from ? to 17j
Plate changed from 3/4 to 3/4 Bridge
Illinois Grade 186 Pocket Watch