Pocket Watch Database

From the American Horology Archive:
Illinois Grade Mason Pocket Watch

Illinois Watch Co.

Grade: Mason

Manufacturer: Illinois
Manufacturer Location: Springfield, Illinois
Movement Serial Number: 28550
Grade: Mason
Model: 1
Estimated Production Date: November 1874
Run Quantity: 1,000
Grade/Model Run: 9 of 16
Grade/Model Total Production: 10,300
Size: 18s
Jewels: 7j
Movement Configuration: Adaptable
Movement Finish: Gilt
Movement Setting: Key
Plate: Full Plate
Barrel: Going
Balance Type: Uncut Expansion
Train: Coarse
Regulator: Plain
Hairspring: Flat
Standard Dial Type: Single-Sunk
Adjusted: No
Railroad Grade: No
Dial Feet Locations: 16.5, 36.5, 53.0
Case Screw Locations: O-36.5, H-51.5
Movement Markings: Mason
Springfield, Ill.
Patent Pinion
Case: Various
Run ID: 35.G9.18S35.181M35.A35.K35.7J9
Database Version: v52.304
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
31.01
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
106.63
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
0.181%
Registry Population: 5 (0.50%)

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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 · April 9, 2023

Serial Number 28770 was reported as accurate.

Dave895 Supporter 90 · December 14, 2022

Serial Number 28550 was reported as accurate.

Anonymous · March 22, 2021

Serial Number 28448 was reported as accurate.

Anonymous · March 9, 2021

Serial Number 28770 was reported as accurate.

Anonymous · September 23, 2020

Serial Number 28159 was reported as accurate.

Anonymous · August 9, 2020

Serial Number 28106 was reported as accurate.

Anonymous · May 20, 2020

Serial Number 28752 was reported as accurate.

Anonymous · November 20, 2019

Serial Number 28758 was reported as accurate.

Supersport 7 · March 8, 2019

Serial Number 28491 was reported as accurate.

brentel 19 · July 30, 2018

Serial Number 28890 was reported as accurate.

Anonymous · June 3, 2018

Serial Number 28890 was reported as accurate.

Anonymous · July 23, 2017

Serial Number 28289 was reported as accurate.

Anonymous · January 4, 2013

Serial Number 28693 was reported as accurate.

Illinois Grade Mason Pocket Watch