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Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/illinois/1640
Access Date: November 19, 2024
We noticed that you entered a relatively short serial number.
"1640" could possibly indicate the grade of the watch and not the serial number of your movement. Serial numbers are usually more than a few digits.
From the American Horology Archive:
Illinois Grade Miller Pocket Watch
Illinois Watch Co.

Grade: Miller

Manufacturer: Illinois Question Mark
Manufacturer Location: Springfield, Illinois Question Mark
Movement Serial Number: 1640 Question Mark
Grade: Miller Question Mark
Model: 1 Question Mark
Class: 3 Question Mark
Estimated Production Date: June 1872 - December 1872 Question Mark
Run Quantity: 500 Question Mark
Grade/Model Run: 2 of 18 Question Mark
Grade/Model Total Production: 12,200 Question Mark
Variant Est. Production: 4,600 (18S-M1-15J-AGK-U) Question Mark
Size: 18s Question Mark
Jewels: 15j Question Mark
Jewel Setting: Scribed Question Mark
Movement Configuration: Adaptable Question Mark
Movement Finish: Gilt Question Mark
Movement Setting: Key Question Mark
Plate: Full Plate Question Mark
Barrel: Going Question Mark
Balance Type: Expansion Question Mark
Train: Coarse Question Mark
Regulator: Plain Question Mark
Hairspring: Flat Question Mark
Standard Dial Type: Single-Sunk Question Mark
Adjusted: No Question Mark
Railroad Grade: No Question Mark
Railroad Grade Classification: Class C Question Mark
Dial Feet Locations: 16.5, 36.5, 53.0 Question Mark
Case Screw Locations: O-36.5, H-51.5 Question Mark
Movement Markings: Miller
Springfield, Ill.
Patent Pinion
[Some Marked "Adjusted"]
Case: Various Question Mark
Run ID: 8.G2.18S8.181M8.A8.K8.15J4 Question Mark
Database Version: v52.446 Question Mark
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration		 36.73 Question Mark
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration		 123.88 Question Mark
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration		 0.215% Question Mark
Registry Population:
Scoped for This Run Only		4 (0.80%) Question Mark
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Production Metrics Tree: Grade Miller

Target Profile: 18S-M1-15J-AGK-U

Illinois Grade Miller (All Variations): 21,300 ETP
18S: 21,300 100.00%
18s, Grade Miller
18S-M1: 12,200 57.28%
18s, Grade Miller, Model 1		 Other: 9,100
Other Models or Unclassified
18S-M1-15J: 12,200 57.28%
18s, Grade Miller, Model 1, 15 Jewels
18S-M1-15J-AGK: 12,200 57.28%
18s, Grade Miller, Model 1, 15 Jewels, Adaptable/Key/Gilt
18S-M1-15J-AGK-U: 4,600 21.60% Other: 7,600
Other Adjustments or Unclassified

Population Registry for This Run

Image Serial Number Run Position Primary Identification Method Discovery Date
There are 4 watches in the population registry for this run with 3 images.
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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.

Louisc1 Supporter 87 · October 13, 2022

Serial Number 1597 was reported as accurate.

Changes since this report was submitted:
Movement Finish changed from Gilt or Nickel to Gilt

2251lyle 78 · September 29, 2022

Serial Number 1640 was reported as accurate.

Changes since this report was submitted:
Movement Finish changed from Gilt or Nickel to Gilt

Anonymous · May 22, 2022

Serial Number 1536 was reported as accurate.

Changes since this report was submitted:
Movement Finish changed from Gilt or Nickel to Gilt

Anonymous · February 5, 2021

Serial Number 1864 was reported as accurate.

rmwatchandclock Supporter 371 · September 10, 2020

Serial Number 1624 was reported as accurate.

Anonymous · March 1, 2017

Serial Number 1611 was reported as accurate.

Anonymous · January 25, 2017

Serial Number 1614 was reported as accurate.

Anonymous · June 30, 2013

Serial Number 1915 was reported as inaccurate.

Note: Bristol
Illinois Grade Miller Pocket Watch