Pocket Watch Database

From the American Horology Archive:
Illinois Grade Sangamo Special Pocket Watch

Illinois Watch Co.

Grade: Sangamo Special

Manufacturer: Illinois Question Mark
Manufacturer Location: Springfield, Illinois Question Mark
Movement Serial Number: 4736850 Question Mark
Grade: Sangamo Special Question Mark
Variation: 60HR Question Mark
Model: 13 Question Mark
Estimated Production Year: 1926 Question Mark
Run Quantity: 200 Question Mark
Grade/Model Run: 11 of 13 Question Mark
Grade/Model Total Production: 11,200 Question Mark
Variant Est. Production: 3,200 (17S-M13-23J-ONL-A6PTI-60HR) Question Mark
Size: 17s Question Mark
Jewels: 23j Question Mark
Jewel Material: Ruby & Sapphire Question Mark
Jewel Setting: Raised Gold Settings (Screw-Set) Question Mark
Movement Configuration: Openface Question Mark
Movement Finish: Nickel Question Mark
Movement Setting: Lever Question Mark
Plate: Bridge Plate Question Mark
Bridge Type: False Center Question Mark
Double Roller: Yes Question Mark
Barrel: 60-Hr. Motor Question Mark
Train Material: Gold Question Mark
Center Wheel Material: Gold Question Mark
Hairspring: Breguet Question Mark
Pallet Jewel Material: Ruby Question Mark
Adjusted: Yes Question Mark
Adjusted to Position: Yes Question Mark
Adjusted # of Positions: 6 Question Mark
Adjusted to Temperature: Yes Question Mark
Adjusted to Isochronism: Yes Question Mark
Railroad Grade: Yes Question Mark
Dial Feet Locations: 17.5, 39.0, 58.0 Question Mark
Case Screw Locations: 3.0, 38.0 Question Mark
Case: Various Question Mark
Run ID: 12001.G53.17S15.1713M11.O6745.L6991.23J270 Question Mark
Database Version: v52.517 Question Mark
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
33.72 Question Mark
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
113.72 Question Mark
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
0.197% Question Mark
Registry Population:
Scoped for This Run Only
3 (1.50%) Question Mark
$ Estimated Value (12 Month Change): -7.06% Analyzing 172 Sales Question Mark

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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 · April 8, 2022

Serial Number 4736855 was reported as accurate.

Anonymous · July 12, 2017

Serial Number 4736826 was reported as accurate.

Anonymous · December 6, 2016

Serial Number 4736885 was reported as accurate.

Illinois Grade Sangamo Special Pocket Watch