Illinois Pocket Watch: Serial Number 2798488 (Grade Sangamo Special)

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Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/illinois/2798488/movement

Access Date: November 28, 2024

From the American Horology Archive:

Illinois Watch Co.

Grade: Sangamo Special

Manufacturer:	Illinois
Manufacturer Location:	Springfield, Illinois
Movement Serial Number:	2798488
Grade:	Sangamo Special
Variation:	True Bridge
Model:	9
Estimated Production Year:	1915
Run Quantity:	700
Grade/Model Run:	16 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:	8886.G19.16S2601.169M159.O4178.L6135.23J163
Database Version:	v52.467
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: Scoped for This Run Only	24 (3.43%)
$ Estimated Value (12 Month Change):	-3.24% Analyzing 107 Sales

Value Guide

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Production Metrics Tree: Grade Sangamo Special

Target Profile: 16S-M9-23J-ONL-A6PTI-TRUE BRIDGE

Illinois Grade Sangamo Special (All Variations): 30,260 ETP
16S: 12,660 41.84% 16s, Grade Sangamo Special				Other: 17,600 Other Sizes or Unclassified
16S-M9: 8,070 26.67% 16s, Grade Sangamo Special, Model 9			Other: 4,590 Other Models or Unclassified
16S-M9-23J: 3,420 11.30% 16s, Grade Sangamo Special, Model 9, 23 Jewels		Other: 4,650 Other Jewels or Unclassified
16S-M9-23J-ONL: 3,420 11.30% 16s, Grade Sangamo Special, Model 9, 23 Jewels, Openface/Lever/Nickel
16S-M9-23J-ONL-A6PTI: 3,420 11.30%
16S-M9-23J-ONL-A6PTI-TRUE BRIDGE: 1,710 5.65%	Other: 1,710 Other Variants or Unclassified

Population Registry for This Run

	Image	Serial Number	Run Position	Primary Identification Method	Discovery Date
There are 24 watches in the population registry for this run with 3 images. Create a FREE account or login to view the population registry and add your watch to the registry. Create a Free Account

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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