Pocket Watch Database


From the American Horology Archive:
Illinois Grade 306 Pocket Watch

Illinois Watch Co.

Grade: 306

Private Label(s) in Run:

Illinois Central

What is a Private Label?
Manufacturer: Illinois Question Mark
Manufacturer Location: Springfield, Illinois Question Mark
Movement Serial Number: 2505601 Question Mark
Grade: 306 Question Mark
Model: 6 Question Mark
Estimated Production Year: 1913 Question Mark
Run Quantity: 600 Question Mark
Grade/Model Run: 12 of 32 Question Mark
Grade/Model Total Production: 5,330 Question Mark
Size: 16s Question Mark
Jewels: 17j Question Mark
Movement Configuration: Hunting Question Mark
Movement Finish: Two-Tone Question Mark
Movement Setting: Pendant Question Mark
Plate: Bridge Plate Question Mark
Double Roller: Yes Question Mark
Barrel: Going Question Mark
Adjusted: Yes Question Mark
Adjusted # of Positions: 3 Question Mark
Adjusted to Temperature: Yes Question Mark
Railroad Grade: No Question Mark
Dial Feet Locations: 17.5, 39.0, 58.0 Question Mark
Case Screw Locations: 18.0, 53.0 Question Mark
Case: Various Question Mark
Run ID: 7903.306G34.16S2186.166M80.H3836.P1558.17J2290 Question Mark
Database Version: v52.528 Question Mark
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
16.04 Question Mark
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
54.07 Question Mark
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
0.094% Question Mark
Registry Population:
Scoped for This Run Only
4 (0.67%) Question Mark
Research Note: #2505887 Verified as Two-Tone with "Illinois Central" marked on movement and dial [NAWCC]

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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 · June 20, 2024

Serial Number 2505903 was reported as accurate.

Anonymous · June 24, 2022

Serial Number 2505869 was reported as accurate.

texnet 684 · August 23, 2020

Serial Number 2506035 was reported as accurate.

Anonymous · February 28, 2017

Serial Number 2505805 was reported as inaccurate.

Note: Hunter movement, not open face. Cheers. duffy l.
Changes since this report was submitted:
Movement Configuration changed from Openface to Hunting
Movement Finish changed from Nickel to Two-Tone
Plate changed from 3/4 to Bridge

Anonymous · May 7, 2015

Serial Number 2505880 was reported as inaccurate.

Note: Hunting case, not open face.
Changes since this report was submitted:
Movement Configuration changed from Openface to Hunting
Movement Finish changed from Nickel to Two-Tone
Plate changed from 3/4 to Bridge

Anonymous · February 14, 2014

Serial Number 2505711 was reported as accurate.

Changes since this report was submitted:
Movement Configuration changed from Openface to Hunting
Movement Finish changed from Nickel to Two-Tone
Plate changed from 3/4 to Bridge

Anonymous · February 14, 2014

Serial Number 2505711 was reported as inaccurate.

Note: This is a hunting case movement.
Changes since this report was submitted:
Movement Configuration changed from Openface to Hunting
Movement Finish changed from Nickel to Two-Tone
Plate changed from 3/4 to Bridge
Illinois Grade 306 Pocket Watch