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Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/illinois/3251312
https://pocketwatchdatabase.com/search/result/illinois/3251312
Access Date: January 15, 2025
From the American Horology Archive:
Illinois Watch Co.
Grade: Sangamo Special
| Manufacturer: | Illinois |  |
| Manufacturer Location: | Springfield, Illinois | |
| Movement Serial Number: | 3251312 | |
| Grade: | Sangamo Special | |
| Variation: | False Bridge | |
| Model: | 9 | |
| Estimated Production Year: | 1917 | |
| Run Quantity: | 400 | |
| Grade/Model Run: | 25 of 25 | |
| Grade/Model Total Production: | 8,070 | |
| Variant Est. Production: | 900 (16S-M9-21J-ONL-A6PTI-FALSE BRIDGE) | |
| Size: | 16s | |
| Jewels: | 21j | |
| Jewel Material: | Ruby & Sapphire | |
| Jewel Setting: | Raised Gold Settings (Screw-Set) | |
| Movement Configuration: | Openface | |
| Movement Finish: | Nickel | |
| Movement Signing Style: | Block Letter | |
| Movement Inlay Color: | Bronze | |
| Movement Setting: | Lever | |
| Plate: | Bridge Plate | |
| Bridge Type: | False Center | |
| Double Roller: | Yes | |
| Barrel: | Going | |
| Train Material: | Gold | |
| Center Wheel Material: | Gold | |
| Regulator: | Reed | |
| 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: | Sangamo Special 21 Jewels Adjusted Temp. And Six Positions Double Roller Illinois Watch Co. Springfield |
|
| Case: | Various | |
| Run ID: | 10054.G32.16S3010.169M305.O5071.L6390.21J842 | |
| Database Version: | v52.559 | |
| Advanced Metrics | ||
| PWDB Absolute Rarity Index: Scoped for Grade/Size/Model/Configuration | 24.30 | |
| 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 | 6 (1.50%) | |
| $ Estimated Value (12 Month Change): | -6.04% Analyzing 156 Sales | |
Production Metrics Tree: Grade Sangamo Special
Target Profile: 16S-M9-21J-ONL-A6PTI-FALSE 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-FALSE BRIDGE: 900 2.97% | Other: 2,450
Other Variants or Unclassified |
|||
Population Registry for This Run
| Image | Serial Number | Run Position | Primary Identification Method | Discovery Date | |
|---|---|---|---|---|---|
|
There are 6 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 · July 2, 2018
Serial Number 3251312 was reported as accurate.
jkardon 1 · March 11, 2018
Serial Number 3251177 was reported as accurate.
Anonymous · November 17, 2017
Serial Number 3251249 was reported as accurate.
Anonymous · April 15, 2017
Serial Number 3251086 was reported as accurate.
Pocketwatchlover 71 · September 7, 2016
Serial Number 3251269 was reported as accurate.
Anonymous · June 9, 2016
Serial Number 3251220 was reported as accurate.
Anonymous · February 25, 2016
Serial Number 3251346 was reported as accurate.
Anonymous · January 14, 2016
Serial Number 3251269 was reported as accurate.
TimeAntiquarian Founder Research Expert Historian Top Contributor Supporter 171 · November 14, 2014
Serial Number 3251199 was reported as accurate.
Anonymous · March 4, 2013
Serial Number 3251167 was reported as accurate.
Changes since this report was submitted:
Plate changed from 3/4 to Bridge
Anonymous · June 30, 2012
Serial Number 3251285 was reported as accurate.
Changes since this report was submitted:
Plate changed from 3/4 to Bridge
