Pocket Watch Database

From the American Horology Archive:
Illinois Grade Sangamo Pocket Watch Movement

Illinois Watch Co.

Grade: Sangamo

Private Label(s) in Run:
Ariston U.S.A.
What is a Private Label?
Manufacturer: Illinois
Manufacturer Location: Springfield, Illinois
Movement Serial Number: 2017267
Grade: Sangamo
Model: 5
Estimated Production Year: 1907
Run Quantity: 200
Total Production: 26,135
Size: 16s
Jewels: 23j
Jewel Material: Ruby
Jewel Setting: Gold Settings (Screw-Set)
Movement Configuration: Openface
Movement Finish: Nickel
Finish Pattern: Bright-spotted
Movement Signing Style: Serif (Decorative)
Movement Inlay Color: Black
Movement Setting: Lever
Plate: 3/4 Plate
Double Roller: Yes
Barrel: Going
Train Material: Gold
Regulator: Micrometric
Adjusted: Yes
Adjusted to Position: Yes
Adjusted # of Positions: 6
Adjusted to Temperature: Yes
Adjusted to Isochronism: Yes
Railroad Grade: Yes
Dial Feet Locations: 24.5, 36.5, 55.5
Case Screw Locations: 3.5, 37.5
Movement Markings: Sangamo
Illinois Watch Co.
Springfield.
23 Ruby Jewels
Adjusted
Temperature
6 Positions
Isochronism
Double Roller
Database Version: v48.148

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Data Verification Reports

2017101
Verification Serial Map
2017300

billreid 99 · December 26, 2021

Serial Number 2017267 was reported as accurate.

Anonymous · March 12, 2020

Serial Number 2017199 was reported as accurate.

Anonymous · August 29, 2019

Serial Number 2017227 was reported as accurate.

Anonymous · May 25, 2019

Serial Number 2017199 was reported as accurate.

oilseed Supporter 462 · January 12, 2017

Serial Number 2017213 was reported as inaccurate.

Note: On train bridge, marked ARISTON USA with LOGO
engraved. all other markings are consistent with
grade and model. sold on ebay for $1475 (Jan 2017)
with 14K solid gold pendant case.

ngupaan 95 · January 11, 2017

Serial Number 2017213 was reported as inaccurate.

Note: Marked Ariston USA

Anonymous · October 5, 2016

Serial Number 2017187 was reported as accurate.

southcity 9 · July 22, 2013

Serial Number 2017169 was reported as accurate.

Anonymous · June 27, 2012

Serial Number 2017132 was reported as accurate.

Illinois Grade Sangamo Pocket Watch Movement