Pocket Watch Database

From the American Horology Archive:
Illinois Grade Sangamo Pocket Watch

Illinois Watch Co.

Grade: Sangamo

Custom Plates (1-Finger)

Private Label(s) in Run:

Inter-State Chronometer

What is a Private Label?
Manufacturer: Illinois
Manufacturer Location: Springfield, Illinois
Movement Serial Number: 2331053
Grade: Sangamo
Model: 4
Estimated Production Year: 1911
Run Quantity: 100
Grade/Model Run: 51 of 57
Grade/Model Total Production: 7,385
Size: 16s
Jewels: 23j
Jewel Material: Ruby
Jewel Setting: Gold Settings (Screw-Set)
Movement Configuration: Hunting
Movement Finish: Two-Tone
Finish Pattern: Grid In Circle
Movement Signing Style: Serif (Decorative)
Movement Inlay Color: Gilt
Movement Setting: Lever
Plate: 3/4 Plate
Double Roller: Yes
Barrel: Going
Train Material: Gold
Center Wheel Material: Gold
Regulator: Micrometer
Standard Dial Type: Double-Sunk
Adjusted: Yes
Adjusted to Position: Yes
Adjusted # of Positions: 6
Adjusted to Temperature: Yes
Adjusted to Isochronism: Yes
Railroad Grade: No
Dial Feet Locations: 24.5, 36.5, 55.5
Case Screw Locations: 18.5, 52.5
Movement Markings: Inter-State Chronometer
23 Ruby Jewels
Adjusted
Case: Various
Run ID: 7263.G143.16S1953.164M880.H3603.L5576.23J83
Database Version: v52.245
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
22.23
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
74.95
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
0.130%
Registry Population: 3 (3.00%)
$ Estimated Value (12 Month Change): 0.63% Analyzing 82 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 · January 17, 2020

Serial Number 2331039 was reported as accurate.

Anonymous · January 20, 2017

Serial Number 2331053 was reported as inaccurate.

Note: Plate layout matches, marked "Interstate
Chronometer" and "adjusted"
Changes since this report was submitted:
Movement Finish changed from Nickel to Two-Tone
Illinois Grade Sangamo Pocket Watch