Pocket Watch Database

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

Illinois Watch Co.

Grade: Bunn Special

Type II 60hr.

Manufacturer: Illinois
Manufacturer Location: Springfield, Illinois
Movement Serial Number: 4788927
Grade: Bunn Special
Variation: Type II
Model: 14
Estimated Production Year: 1926
Run Quantity: 1,000
Total Production: 117,000
Size: 16s
Jewels: 21j
Jewel Material: Ruby
Jewel Setting: Raised Gold Settings (Screw-Set)
Movement Configuration: Openface
Movement Finish: Nickel
Finish Pattern: Ray
Movement Signing Style: Serif Caps
Movement Inlay Color: Black
Movement Setting: Lever
Plate: 3/4 Plate
Double Roller: Yes
Barrel: 60-Hr. Motor
Regulator: Reed
Hairspring: Breguet
Adjusted: Yes
Adjusted to Position: Yes
Adjusted # of Positions: 6
Adjusted to Temperature: Yes
Adjusted to Isochronism: Yes
Railroad Grade: Yes
Dial Feet Locations: 17.5, 39.0, 58.0
Case Screw Locations: 3.0, 38.0
Movement Markings: Sixty Hour
Bunn Special
Illinois Watch Co.
Springfield
Motor Barrel 60
21 Jewels
Adjusted
Temp. And
Six
Positions
Double Roller

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Data Verification Reports

4788001
Verification Serial Map
4789000

Whit04 1 · October 16, 2020

Serial Number 4788927 was reported as accurate.

Anonymous · October 16, 2020

Serial Number 4788927 was reported as accurate.

Anonymous · May 23, 2020

Serial Number 4788464 was reported as accurate.

Anonymous · January 17, 2020

Serial Number 4788147 was reported as accurate.

Anonymous · June 15, 2019

Serial Number 4788147 was reported as accurate.

Anonymous · July 30, 2018

Serial Number 4788605 was reported as accurate.

Anonymous · February 7, 2018

Serial Number 4788769 was reported as accurate.

Anonymous · December 17, 2017

Serial Number 4788321 was reported as inaccurate.

Note: It's Type II with the "Sixty Hour" up top but the
older "Motor Barrel 60" around the crown wheel.
You've got II and III indicated. Cheers. duffy
l.

Anonymous · May 17, 2017

Serial Number 4788339 was reported as accurate.

dfchong 834 · June 19, 2016

Serial Number 4788862 was reported as accurate.

schwan 178 · January 16, 2015

Serial Number 4788322 was reported as accurate.

Anonymous · December 15, 2013

Serial Number 4788509 was reported as accurate.

caitlinbenner5 1 · December 11, 2013

Serial Number 4788509 was reported as accurate.

Anonymous · August 4, 2013

Serial Number 4788148 was reported as accurate.

Anonymous · July 21, 2013

Serial Number 4788148 was reported as accurate.

Illinois Grade Bunn Special Pocket Watch Movement