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Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/illinois/2798411
https://pocketwatchdatabase.com/search/result/illinois/2798411
Access Date: April 04, 2025
From the American Horology Archive:
Illinois Watch Co.
Grade: Sangamo Special
| Manufacturer: | Illinois |  |
| Manufacturer Location: | Springfield, Illinois | |
| Movement Serial Number: | 2798411 | |
| Grade: | Sangamo Special | |
| Variation: | True Bridge | |
| Model: | 9 | |
| Estimated Production Year: | 1915 | |
| Run Quantity: | 700 | |
| Grade/Model Run: | 16 of 25 | |
| Grade/Model Total Production: | 8,070 | |
| Variant Est. Production: | 1,710 (16S-M9-23J-ONL-A6PTI-TRUE BRIDGE) | |
| Size: | 16s | |
| 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: | 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: | 8886.G19.16S2601.169M159.O4177.L6136.23J163 | |
| Database Version: | v52.633 | |
| Advanced Metrics | ||
| PWDB Absolute Rarity Index: Scoped for Grade/Size/Model/Configuration | 24.45 | |
| 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 | 24 (3.43%) | |
| $ Estimated Value (12 Month Change): | -6.10% Analyzing 107 Sales | |
Production Metrics Tree: Grade Sangamo Special
Target Profile: 16S-M9-23J-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-M9-23J: 3,420 11.30% 16s, Grade Sangamo Special, Model 9, 23 Jewels |
Other: 4,650
Other Jewels or Unclassified |
|||
| 16S-M9-23J-ONL: 3,420 11.30% 16s, Grade Sangamo Special, Model 9, 23 Jewels, Openface/Lever/Nickel |
||||
| 16S-M9-23J-ONL-A6PTI: 3,420 11.30% | ||||
| 16S-M9-23J-ONL-A6PTI-TRUE BRIDGE: 1,710 5.65% | Other: 1,710
Other Variants or Unclassified |
|||
Population Registry for This Run
| Image | Serial Number | Run Position | Primary Identification Method | Discovery Date | |
|---|---|---|---|---|---|
|
There are 24 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.
Roberthunigan 25 · November 1, 2021
Serial Number 2798588 was reported as inaccurate.
Note: My watch has the fish scale pattern
Anonymous · October 19, 2017
Serial Number 2798256 was reported as inaccurate.
No further details were submitted with the report.
Msw233 Supporter 91 · February 1, 2015
Serial Number 2798488 was reported as inaccurate.
Note: True bridge
smoken 110 · June 25, 2014
Serial Number 2798102 was reported as inaccurate.
Note: Movement is bridged and says:
jeweled barrel
jeweled barrel
Changes since this report was submitted:
Plate changed from 3/4 to Bridge
Anonymous · May 9, 2014
Serial Number 2798182 was reported as accurate.
Changes since this report was submitted:
Plate changed from 3/4 to Bridge
Anonymous · May 9, 2014
Serial Number 2798179 was reported as accurate.
Changes since this report was submitted:
Plate changed from 3/4 to Bridge
Anonymous · April 27, 2014
Serial Number 2798459 was reported as accurate.
Changes since this report was submitted:
Plate changed from 3/4 to Bridge
Anonymous · April 19, 2014
Serial Number 2798471 was reported as accurate.
Changes since this report was submitted:
Plate changed from 3/4 to Bridge
Anonymous · January 22, 2014
Serial Number 2798179 was reported as accurate.
Changes since this report was submitted:
Plate changed from 3/4 to Bridge
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