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Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/illinois/2615567/movement
https://pocketwatchdatabase.com/search/result/illinois/2615567/movement
Access Date: March 12, 2025
From the American Horology Archive:
Illinois Watch Co.
Grade: Sangamo Special
| Manufacturer: | Illinois |  |
| Manufacturer Location: | Springfield, Illinois | |
| Movement Serial Number: | 2615567 | |
| Grade: | Sangamo Special | |
| Variation: | True Bridge | |
| Model: | 9 | |
| Estimated Production Year: | 1914 | |
| Run Quantity: | 500 | |
| Grade/Model Run: | 9 of 25 | |
| Grade/Model Total Production: | 8,070 | |
| Variant Est. Production: | 2,450 (16S-M9-21J-ONL-A6PTI-TRUE BRIDGE) | |
| Size: | 16s | |
| Jewels: | 21j | |
| 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: | 8297.G9.16S2356.169M72.O3792.L5944.21J588 | |
| Database Version: | v52.622 | |
| 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 | 9 (1.80%) | |
| $ Estimated Value (12 Month Change): | -3.54% Analyzing 156 Sales | |
Production Metrics Tree: Grade Sangamo Special
Target Profile: 16S-M9-21J-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-M9-21J: 3,350 11.07% 16s, Grade Sangamo Special, Model 9, 21 Jewels |
Other: 4,720
Other Jewels or Unclassified |
|||
| 16S-M9-21J-ONL: 3,350 11.07% 16s, Grade Sangamo Special, Model 9, 21 Jewels, Openface/Lever/Nickel |
||||
| 16S-M9-21J-ONL-A6PTI: 3,350 11.07% | ||||
| 16S-M9-21J-ONL-A6PTI-TRUE BRIDGE: 2,450 8.10% | Other: 900
Other Variants or Unclassified |
|||
Population Registry for This Run
| Image | Serial Number | Run Position | Primary Identification Method | Discovery Date | |
|---|---|---|---|---|---|
|
There are 9 watches in the population registry for this run.
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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 · February 11, 2024
Serial Number 2615832 was reported as accurate.
Anonymous · September 18, 2020
Serial Number 2615567 was reported as inaccurate.
Note: Jewels: Diamond, ruby, Safire
Anonymous · September 6, 2020
Serial Number 2615567 was reported as accurate.
Anonymous · January 31, 2020
Serial Number 2615974 was reported as accurate.
roadking 36 · December 5, 2017
Serial Number 2615674 was reported as accurate.
roadking 36 · August 20, 2017
Serial Number 2615674 was reported as accurate.
Anonymous · April 19, 2015
Serial Number 2615944 was reported as accurate.
Changes since this report was submitted:
Plate changed from 3/4 to Bridge
Shalle0073 Supporter 11 · September 11, 2013
Serial Number 2615552 was reported as accurate.
Changes since this report was submitted:
Plate changed from 3/4 to Bridge
Shalle0073 Supporter 11 · September 10, 2013
Serial Number 2615552 was reported as accurate.
Changes since this report was submitted:
Plate changed from 3/4 to Bridge
Anonymous · March 7, 2013
Serial Number 2615944 was reported as accurate.
Changes since this report was submitted:
Plate changed from 3/4 to Bridge
Anonymous · June 29, 2012
Serial Number 2615950 was reported as inaccurate.
Note: Diamond end cap (Balance cock), three finger
bridge.
bridge.
Changes since this report was submitted:
Plate changed from 3/4 to Bridge
