Pocket Watch Database

From the American Horology Archive:
Illinois Grade Bunn Special Pocket Watch Movement

Illinois Watch Co.

Grade: Bunn Special

Manufacturer: Illinois
Manufacturer Location: Springfield, Illinois
Movement Serial Number: 1856290
Grade: Bunn Special
Model: 6
Estimated Production Year: 1906
Run Quantity: 300
Total Production: 76,978
Size: 18s
Jewels: 21j
Jewel Material: Ruby
Jewel Setting: Gold Settings (Screw-Set)
Movement Configuration: Openface
Movement Finish: Nickel
Finish Pattern: Bright Spotted
Movement Signing Style: Old English
Movement Inlay Color: Black
Movement Setting: Lever
Plate: Full Plate
Double Roller: Yes
Barrel: Going
Train: Fast
Regulator: Reed
Adjusted: Yes
Adjusted # of Positions: 6
Adjusted to Temperature: Yes
Adjusted to Isochronism: Yes
Railroad Grade: Yes
Dial Feet Locations: 2.0, 21.5, 38.5
Case Screw Locations: 23.5, 51.5
Movement Markings: Bunn Special
Springfield, Ill.
21 Ruby Jewels
Adjusted
Temperature, 6 Positions
Isochronism
Double Roller
Database Version: v48.039

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Data Verification Reports

1856001
Verification Serial Map
1856300

Anonymous · August 23, 2018

Serial Number 1856121 was reported as accurate.

Anonymous · April 7, 2018

Serial Number 1856264 was reported as accurate.

Anonymous · December 1, 2017

Serial Number 1856279 was reported as accurate.

Anonymous · December 24, 2014

Serial Number 1856290 was reported as accurate.

Anonymous · June 3, 2013

Serial Number 1856239 was reported as accurate.

Anonymous · June 3, 2013

Serial Number 1856239 was reported as accurate.

Illinois Grade Bunn Special Pocket Watch Movement