Pocket Watch Database

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

Illinois Watch Co.

Grade: Sangamo Special

Manufacturer: Illinois
Manufacturer Location: Springfield, Illinois
Movement Serial Number: 4758993
Grade: Sangamo Special
Variation: 60HR
Model: 13
Estimated Production Year: 1926
Run Quantity: 1,000
Grade/Model Run: 12 of 13
Grade/Model Total Production: 11,200
Variant Est. Production: 3,200 (17S-M13-23J-ONL-A6PTI-60HR)
Size: 17s
Jewels: 23j
Jewel Material: Ruby & Sapphire
Jewel Setting: Raised Gold Settings (Screw-Set)
Movement Configuration: Openface
Movement Finish: Nickel
Movement Setting: Lever
Plate: Bridge Plate
Bridge Type: False Center
Double Roller: Yes
Barrel: 60-Hr. Motor
Train Material: Gold
Center Wheel Material: Gold
Hairspring: Breguet
Pallet Jewel Material: Ruby
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: Illinois Watch Co.
Sangamo Special
23 Jewels
Motor Barrel
Adjusted
Temp. And
Six
Positions
Sixty Hour
Case: Various
Run ID: 12000.G54.17S16.1713M12.O6743.L6976.23J258
Database Version: v52.219
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
33.53
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
113.72
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
0.197%
Registry Population: 27 (2.70%)
$ Estimated Value (12 Month Change): 3.23% Analyzing 169 Sales

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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 · January 19, 2021

Serial Number 4758287 was reported as accurate.

Anonymous · November 7, 2020

Serial Number 4758318 was reported as accurate.

334334 44 · November 2, 2020

Serial Number 4758472 was reported as accurate.

Anonymous · September 22, 2020

Serial Number 4758115 was reported as accurate.

dfchong 837 · September 10, 2019

Serial Number 4758358 was reported as accurate.

dfchong 837 · July 8, 2019

Serial Number 4758037 was reported as accurate.

chasofvt Supporter 6 · February 9, 2019

Serial Number 4758744 was reported as inaccurate.

Note: While sapphire and ruby are chemically very
similar, more chromium makes the blood red
colored stone a ruby. An Illinois catalog page
available online states the the roller and pallet
jewels are rubies. Both my Illinois SS have blood
red pallet jewels, IE: rubies, not sapphires.
Curator Response: Thanks for the report. The database has been updated accordingly.

Anonymous · January 5, 2019

Serial Number 4758744 was reported as accurate.

bman8030 54 · August 25, 2018

Serial Number 4758712 was reported as accurate.

dfchong 837 · February 6, 2018

Serial Number 4758408 was reported as accurate.

Anonymous · February 6, 2018

Serial Number 4758408 was reported as accurate.

Anonymous · August 4, 2017

Serial Number 4758330 was reported as accurate.

Anonymous · April 8, 2017

Serial Number 4758298 was reported as accurate.

dfchong 837 · March 15, 2017

Serial Number 4758298 was reported as accurate.

Anonymous · January 20, 2017

Serial Number 4758881 was reported as accurate.

dfchong 837 · November 3, 2016

Serial Number 4758289 was reported as accurate.

dfchong 837 · October 26, 2016

Serial Number 4758209 was reported as accurate.

dfchong 837 · August 1, 2016

Serial Number 4758916 was reported as accurate.

Anonymous · June 26, 2016

Serial Number 4758408 was reported as accurate.

Anonymous · June 1, 2016

Serial Number 4758724 was reported as accurate.

Anonymous · April 16, 2016

Serial Number 4758782 was reported as accurate.

Anonymous · April 1, 2016

Serial Number 4758881 was reported as accurate.

yrazis Supporter 9 · March 16, 2016

Serial Number 4758478 was reported as accurate.

Anonymous · January 31, 2016

Serial Number 4758694 was reported as accurate.

Anonymous · November 21, 2015

Serial Number 4758296 was reported as accurate.

redsox1 74 · July 27, 2015

Serial Number 4758993 was reported as accurate.

redsox1 74 · July 25, 2015

Serial Number 4758993 was reported as accurate.

Anonymous · August 12, 2014

Serial Number 4758494 was reported as accurate.

ceocbeck Supporter 112 · June 30, 2014

Serial Number 4758953 was reported as accurate.

Anonymous · June 15, 2014

Serial Number 4758510 was reported as accurate.

Anonymous · May 6, 2014

Serial Number 4758972 was reported as accurate.

Anonymous · May 6, 2014

Serial Number 4758494 was reported as accurate.

Anonymous · February 18, 2014

Serial Number 4758106 was reported as accurate.

Anonymous · January 10, 2014

Serial Number 4758910 was reported as accurate.

Anonymous · March 28, 2013

Serial Number 4758779 was reported as accurate.

Anonymous · May 21, 2012

Serial Number 4758921 was reported as accurate.

Illinois Grade Sangamo Special Pocket Watch