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: 2618355
Grade: Sangamo Special
Variation: True Bridge
Model: 9
Estimated Production Year: 1914
Run Quantity: 400
Grade/Model Run: 10 of 25
Grade/Model Total Production: 8,070
Variant Est. Production: 1,710 (16S-M9-23J-ONL-A6PTI-TRUE 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: True Bridge
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: 8293.G10.16S2348.169M65.O3788.L5938.23J141
Database Version: v52.245
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
24.29
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: 9 (2.25%)
$ Estimated Value (12 Month Change): 9.99% 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.


Anonymous · February 14, 2022

Serial Number 2618204 was reported as accurate.

Anonymous · December 31, 2019

Serial Number 2618355 was reported as accurate.

Wbridg10 111 · January 11, 2019

Serial Number 2618251 was reported as accurate.

dfchong 837 · January 8, 2019

Serial Number 2618257 was reported as accurate.

Anonymous · October 19, 2018

Serial Number 2618294 was reported as accurate.

rjbean 7 · June 25, 2017

Serial Number 2618254 was reported as accurate.

rjbean 7 · May 3, 2017

Serial Number 2618254 was reported as accurate.

Anonymous · October 16, 2016

Serial Number 2618216 was reported as accurate.

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

Anonymous · April 9, 2016

Serial Number 2618006 was reported as accurate.

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

rjbean 7 · October 20, 2015

Serial Number 2618254 was reported as accurate.

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

Anonymous · November 1, 2014

Serial Number 2618363 was reported as accurate.

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

Anonymous · January 31, 2013

Serial Number 2618209 was reported as accurate.

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