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: 2868432
Grade: Sangamo Special
Variation: False Bridge
Model: 9
Estimated Production Year: 1915
Run Quantity: 700
Grade/Model Run: 18 of 25
Grade/Model Total Production: 8,070
Variant Est. Production: 1,710 (16S-M9-23J-ONL-A6PTI-FALSE BRIDGE)
Size: 16s
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: Going
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
Case: Various
Run ID: 9141.G21.16S2674.169M180.O4359.L6189.23J165
Database Version: v52.219
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
24.16
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
81.91
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
0.142%
Registry Population: 25 (3.57%)
$ Estimated Value (12 Month Change): 4.36% Analyzing 105 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.


cranemaker Supporter 73 · February 25, 2024

Serial Number 2868545 was reported as accurate.

Anonymous · December 24, 2022

Serial Number 2868628 was reported as accurate.

Anonymous · May 8, 2021

Serial Number 2868521 was reported as accurate.

Anonymous · March 24, 2021

Serial Number 2868628 was reported as accurate.

backwardglance1 99 · November 11, 2019

Serial Number 2868782 was reported as accurate.

Anonymous · July 21, 2019

Serial Number 2869013 was reported as accurate.

dfchong 837 · January 8, 2019

Serial Number 2868784 was reported as accurate.

cmdraven 3970 · January 6, 2019

Serial Number 2868784 was reported as accurate.

cmdraven 3970 · January 6, 2019

Serial Number 2868784 was reported as accurate.

Anonymous · June 24, 2018

Serial Number 2868802 was reported as accurate.

Anonymous · June 4, 2018

Serial Number 2868482 was reported as accurate.

Anonymous · June 4, 2018

Serial Number 2868482 was reported as accurate.

Anonymous · May 4, 2018

Serial Number 2868762 was reported as accurate.

Anonymous · April 28, 2018

Serial Number 2868802 was reported as accurate.

Anonymous · July 25, 2017

Serial Number 2868881 was reported as accurate.

Anonymous · May 7, 2017

Serial Number 2868442 was reported as accurate.

Anonymous · April 22, 2016

Serial Number 2868737 was reported as accurate.

Anonymous · March 15, 2016

Serial Number 2868737 was reported as accurate.

bwalder 137 · March 2, 2016

Serial Number 2868999 was reported as accurate.

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

Anonymous · February 12, 2016

Serial Number 2868901 was reported as accurate.

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

Pocketwatchlover 71 · January 16, 2016

Serial Number 2868469 was reported as accurate.

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

Anonymous · January 16, 2016

Serial Number 2868469 was reported as accurate.

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

Anonymous · November 9, 2015

Serial Number 2868737 was reported as accurate.

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

philsan1a 221 · July 10, 2015

Serial Number 2868677 was reported as inaccurate.

Note: False bridge model
Changes since this report was submitted:
Plate changed from 3/4 to Bridge

Anonymous · May 24, 2015

Serial Number 2868996 was reported as accurate.

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

rocket00 236 · January 27, 2014

Serial Number 2868592 was reported as accurate.

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

rocket00 236 · January 23, 2014

Serial Number 2868592 was reported as accurate.

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

oceanica 13 · October 7, 2013

Serial Number 2868644 was reported as inaccurate.

Note: False center bridge full gold cap on escape. model
8?
Changes since this report was submitted:
Plate changed from 3/4 to Bridge

oceanica 13 · August 12, 2013

Serial Number 2868592 was reported as accurate.

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

Anonymous · April 23, 2013

Serial Number 2868433 was reported as accurate.

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

Anonymous · June 14, 2012

Serial Number 2868433 was reported as accurate.

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