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Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/illinois/4758408
https://pocketwatchdatabase.com/search/result/illinois/4758408
Access Date: April 22, 2025
From the American Horology Archive:
Illinois Watch Co.
Grade: Sangamo Special
| Manufacturer: | Illinois |  |
| Manufacturer Location: | Springfield, Illinois | |
| Movement Serial Number: | 4758408 | |
| Grade: | Sangamo Special | |
| Variation: | 60HR | |
| Model: | 13 | |
| Estimated Production Year: | 1926 | |
| Run Quantity: | 1,000 | |
| Grade/Model Run: | 12 of 13 | |
| Grade/Model Total Production: | 11,200 | |
| Variant Est. Production: | 3,200 (17S-M13-23J-ONL-A6PTI-60HR) | |
| Size: | 17s | |
| 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: | False Center | |
| Double Roller: | Yes | |
| Barrel: | 60-Hr. Motor | |
| 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 | |
| Movement Markings: | Illinois Watch Co. Sangamo Special 23 Jewels Motor Barrel Adjusted Temp. And Six Positions Sixty Hour |
|
| Case: | Various | |
| Run ID: | 12022.G54.17S16.1713M12.O6764.L6999.23J271 | |
| Database Version: | v52.640 | |
| Advanced Metrics | ||
| PWDB Absolute Rarity Index: Scoped for Grade/Size/Model/Configuration | 33.94 | |
| PWDB Relative Rarity Index: Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration | 113.72 | |
| Share of Production: Share within Manufacturer - Scoped for Grade/Size/Model/Configuration | 0.197% | |
| Registry Population: Scoped for This Run Only | 28 (2.80%) | |
| $ Estimated Value (12 Month Change): | -11.67% Analyzing 175 Sales | |
Production Metrics Tree: Grade Sangamo Special
Target Profile: 17S-M13-23J-ONL-A6PTI-60HR
| Illinois Grade Sangamo Special (All Variations): 30,260 ETP | |||
| 17S: 17,600 58.16% 17s, Grade Sangamo Special |
Other: 12,660
Other Sizes or Unclassified |
||
| 17S-M13: 11,200 37.01% 17s, Grade Sangamo Special, Model 13 |
Other: 6,400
Other Models or Unclassified |
||
| 17S-M13-23J: 11,200 37.01% 17s, Grade Sangamo Special, Model 13, 23 Jewels |
|||
| 17S-M13-23J-ONL: 11,200 37.01% 17s, Grade Sangamo Special, Model 13, 23 Jewels, Openface/Lever/Nickel |
|||
| 17S-M13-23J-ONL-A6PTI: 11,200 37.01% | |||
| 17S-M13-23J-ONL-A6PTI-60HR: 3,200 10.58% | Other: 8,000
Other Variants or Unclassified |
||
Population Registry for This Run
| Image | Serial Number | Run Position | Primary Identification Method | Discovery Date | |
|---|---|---|---|---|---|
|
There are 28 watches in the population registry for this run with 5 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.
chasofvt Supporter 7 · February 9, 2019
Serial Number 4758744 was reported as inaccurate.
Note: While sapphire and ruby are chemically very
similar, more chromium makes the blood red
colored stone a ruby. An Illinois catalog page
available online states the the roller and pallet
jewels are rubies. Both my Illinois SS have blood
red pallet jewels, IE: rubies, not sapphires.
similar, more chromium makes the blood red
colored stone a ruby. An Illinois catalog page
available online states the the roller and pallet
jewels are rubies. Both my Illinois SS have blood
red pallet jewels, IE: rubies, not sapphires.
Curator Response: Thanks for the report. The database has been updated accordingly.
