Pocket Watch Database

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

Illinois Watch Co.

Grade: Sangamo Special

Manufacturer: Illinois Question Mark
Manufacturer Location: Springfield, Illinois Question Mark
Movement Serial Number: 2798488 Question Mark
Grade: Sangamo Special Question Mark
Variation: True Bridge Question Mark
Model: 9 Question Mark
Estimated Production Year: 1915 Question Mark
Run Quantity: 700 Question Mark
Grade/Model Run: 16 of 25 Question Mark
Grade/Model Total Production: 8,070 Question Mark
Variant Est. Production: 1,710 (16S-M9-23J-ONL-A6PTI-TRUE BRIDGE) Question Mark
Size: 16s Question Mark
Jewels: 23j Question Mark
Jewel Material: Ruby & Sapphire Question Mark
Jewel Setting: Raised Gold Settings (Screw-Set) Question Mark
Movement Configuration: Openface Question Mark
Movement Finish: Nickel Question Mark
Movement Setting: Lever Question Mark
Plate: Bridge Plate Question Mark
Bridge Type: True Bridge Question Mark
Double Roller: Yes Question Mark
Barrel: Going Question Mark
Train Material: Gold Question Mark
Center Wheel Material: Gold Question Mark
Hairspring: Breguet Question Mark
Pallet Jewel Material: Ruby Question Mark
Adjusted: Yes Question Mark
Adjusted to Position: Yes Question Mark
Adjusted # of Positions: 6 Question Mark
Adjusted to Temperature: Yes Question Mark
Adjusted to Isochronism: Yes Question Mark
Railroad Grade: Yes Question Mark
Dial Feet Locations: 17.5, 39.0, 58.0 Question Mark
Case Screw Locations: 3.0, 38.0 Question Mark
Case: Various Question Mark
Run ID: 8886.G19.16S2601.169M159.O4178.L6135.23J163 Question Mark
Database Version: v52.462 Question Mark
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
24.29 Question Mark
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
81.91 Question Mark
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
0.142% Question Mark
Registry Population:
Scoped for This Run Only
24 (3.43%) Question Mark
$ Estimated Value (12 Month Change): -3.24% Analyzing 107 Sales Question Mark

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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, 2024

Serial Number 2798683 was reported as accurate.

DaveReid 52 · May 14, 2022

Serial Number 2798349 was reported as accurate.

testguy 4 · January 5, 2022

Serial Number 2798553 was reported as accurate.

Roberthunigan 25 · November 1, 2021

Serial Number 2798588 was reported as inaccurate.

Note: My watch has the fish scale pattern

Anonymous · January 21, 2021

Serial Number 2798555 was reported as accurate.

bunnofnickle 67 · July 10, 2020

Serial Number 2798067 was reported as accurate.

dfchong 837 · February 24, 2019

Serial Number 2798347 was reported as accurate.

dfchong 837 · February 5, 2019

Serial Number 2798411 was reported as accurate.

Anonymous · October 21, 2017

Serial Number 2798256 was reported as accurate.

Anonymous · October 19, 2017

Serial Number 2798256 was reported as inaccurate.

No further details were submitted with the report.

Anonymous · October 19, 2017

Serial Number 2798256 was reported as accurate.

Anonymous · April 28, 2017

Serial Number 2798450 was reported as accurate.

Anonymous · April 21, 2017

Serial Number 2798450 was reported as accurate.

dfchong 837 · October 24, 2016

Serial Number 2798534 was reported as accurate.

Anonymous · October 6, 2016

Serial Number 2798460 was reported as accurate.

Anonymous · September 22, 2016

Serial Number 2798443 was reported as accurate.

Msw233 Supporter 90 · February 1, 2015

Serial Number 2798488 was reported as inaccurate.

Note: True bridge

smoken 110 · June 25, 2014

Serial Number 2798102 was reported as inaccurate.

Note: Movement is bridged and says:

jeweled barrel
Changes since this report was submitted:
Plate changed from 3/4 to Bridge

Anonymous · May 9, 2014

Serial Number 2798182 was reported as accurate.

Changes since this report was submitted:
Plate changed from 3/4 to Bridge

Anonymous · May 9, 2014

Serial Number 2798179 was reported as accurate.

Changes since this report was submitted:
Plate changed from 3/4 to Bridge

Anonymous · April 27, 2014

Serial Number 2798459 was reported as accurate.

Changes since this report was submitted:
Plate changed from 3/4 to Bridge

Anonymous · April 19, 2014

Serial Number 2798471 was reported as accurate.

Changes since this report was submitted:
Plate changed from 3/4 to Bridge

Anonymous · January 22, 2014

Serial Number 2798179 was reported as accurate.

Changes since this report was submitted:
Plate changed from 3/4 to Bridge

Anonymous · October 19, 2013

Serial Number 2798014 was reported as accurate.

Changes since this report was submitted:
Plate changed from 3/4 to Bridge

Anonymous · July 18, 2013

Serial Number 2798385 was reported as accurate.

Changes since this report was submitted:
Plate changed from 3/4 to Bridge
Illinois Grade Sangamo Special Pocket Watch