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Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/illinois/4109398/movement
https://pocketwatchdatabase.com/search/result/illinois/4109398/movement
Access Date: December 26, 2024
From the American Horology Archive:
Illinois Watch Co.
Grade: Bunn Special
| Manufacturer: | Illinois |  |
| Manufacturer Location: | Springfield, Illinois | |
| Movement Serial Number: | 4109398 | |
| Grade: | Bunn Special | |
| Variation: | PennSpec | |
| Model: | 11 | |
| Estimated Production Year: | 1922 | |
| Run Quantity: | 20 | |
| Grade/Model Run: | 24 of 29 | |
| Grade/Model Total Production: | 13,270 | |
| Variant Est. Production: | 20 (16S-M11-23J-ONL-A6PTI-PENNSPEC) | |
| Size: | 16s | |
| Jewels: | 23j | |
| Jewel Material: | Ruby | |
| Movement Configuration: | Openface | |
| Movement Finish: | Nickel | |
| Finish Pattern: | Pennsylvania Special | |
| Movement Setting: | Lever | |
| Plate: | 3/4 Plate | |
| Double Roller: | Yes | |
| Barrel: | 48-Hr. Motor | |
| Regulator: | Reed | |
| Hairspring: | Breguet | |
| 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: | 11464.G478.16S3675.1611M49.O6223.L6810.23J243 | |
| Research References: |
American Pocket Watches: Illinois Watch Co.: Volume 2. (William Meggers & Roy Ehrhardt) The 16 Size Illinois Bunn Special, 1913-1948. (Michael Chamelin) |
|
| Database Version: | v52.528 | |
| Advanced Metrics | ||
| PWDB Absolute Rarity Index: Scoped for Grade/Size/Model/Configuration | 39.95 | |
| PWDB Relative Rarity Index: Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration | 134.76 | |
| Share of Production: Share within Manufacturer - Scoped for Grade/Size/Model/Configuration | 0.233% | |
| Registry Population: Scoped for This Run Only | 2 (10.00%) | |
| $ Estimated Value (12 Month Change): | -0.48% Analyzing 304 Sales | |
|
Research Note: #4109381: Pennsylvania Special [Chamelin]. #4109398: Verified as "Pennsylvania Special" [eBay].
|
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Production Metrics Tree: Grade Bunn Special
Target Profile: 16S-M11-23J-ONL-A6PTI-PENNSPEC
| Illinois Grade Bunn Special (All Variations): 387,788 ETP | |||
| 16S: 301,630 77.78% 16s, Grade Bunn Special |
Other: 86,158
Other Sizes or Unclassified |
||
| 16S-M11: 13,270 3.42% 16s, Grade Bunn Special, Model 11 |
Other: 288,360
Other Models or Unclassified |
||
| 16S-M11-23J: 13,270 3.42% 16s, Grade Bunn Special, Model 11, 23 Jewels |
|||
| 16S-M11-23J-ONL: 13,270 3.42% 16s, Grade Bunn Special, Model 11, 23 Jewels, Openface/Lever/Nickel |
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| 16S-M11-23J-ONL-A6PTI: 13,270 3.42% | |||
| 16S-M11-23J-ONL-A6PTI-PENNSPEC: 20 0.01% | Other: 13,250
Other Variants or Unclassified |
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Population Registry for This Run
| Image | Serial Number | Run Position | Primary Identification Method | Discovery Date | |
|---|---|---|---|---|---|
|
There are 2 watches in the population registry for this run with 2 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.
billreid 143 · January 29, 2024
Serial Number 4109398 was reported as inaccurate.
Note: Mostly accurate but... Dial & movement marked
Pennsylvania Special & movement is 2-tone.
Currently up for bid:
https://www.ebay.com/itm/126296561471
Pennsylvania Special & movement is 2-tone.
Currently up for bid:
https://www.ebay.com/itm/126296561471
Anonymous · December 5, 2017
Serial Number 4109391 was reported as inaccurate.
Note: Plate layout seems the same, but marked
"Pennsylvania Special" on movement and dial.
"Pennsylvania Special" on movement and dial.
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