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: 1856706
Grade: Bunn Special
Model: 6
Estimated Production Year: 1906
Run Quantity: 400
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

1856601
Verification Serial Map
1857000

brianwatches 53 · March 16, 2022

Serial Number 1856774 was reported as accurate.

brianwatches 53 · March 16, 2022

Serial Number 1856774 was reported as accurate.

hhwhity1 11 · October 15, 2017

Serial Number 1856691 was reported as accurate.

Anonymous · March 1, 2015

Serial Number 1856755 was reported as accurate.

Anonymous · December 4, 2013

Serial Number 1856706 was reported as accurate.

Anonymous · February 17, 2013

Serial Number 1856833 was reported as accurate.

Anonymous · May 15, 2012

Serial Number 1856971 was reported as accurate.

Illinois Grade Bunn Special Pocket Watch Movement