Pocket Watch Database
https://pocketwatchdatabase.com/search/result/illinois/1627939
Access Date: May 11, 2025
From the American Horology Archive:

Illinois Watch Co.
Grade: 186
Ruby Jewels
Manufacturer: | Illinois |
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Manufacturer Location: | Springfield, Illinois |
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Movement Serial Number: | 1627939 |
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Grade: | 186 |
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Model: | 5 |
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Estimated Production Year: | Login to View for Free |
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Run Quantity: | Login to View for Free |
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Grade/Model Run: | Login to View for Free |
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Grade/Model Total Production: | Login to View for Free |
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Size: | 16s |
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Jewels: | 17j |
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Jewel Material: | Login to View for Free |
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Jewel Setting: | Login to View for Free |
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Movement Configuration: | Openface |
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Movement Finish: | Nickel |
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Movement Inlay Color: | Login to View for Free |
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Movement Setting: | Lever |
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Plate: | 3/4 Bridge Plate |
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Bridge Type: | 3-Finger |
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Barrel: | Going |
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Center Wheel Material: | Login to View for Free |
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Regulator: | Login to View for Free |
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Hairspring: | Login to View for Free |
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Standard Dial Type: | Login to View for Free |
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Adjusted: | Yes |
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Adjusted # of Positions: | 4 |
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Adjusted to Temperature: | Yes |
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Railroad Grade: | Login to View for Free |
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Dial Feet Locations: | Login to View for Free |
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Case Screw Locations: | Login to View for Free |
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Case: | Various | ![]() |
Run ID: | 4603.186G24.16S971.165M301.O1700.L3740.17J902 | ![]() |
Database Version: | v52.645 | ![]() |
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Registry Population: Scoped for This Run Only | 4 (2.00%) | ![]() |
14 Additional Member-Only Data Points Available
The following information is unlocked with a free account:
Estimated Production Year, Run Quantity, Grade/Model Run, Grade/Model Total Production, Jewel Material, Jewel Setting, Movement Inlay Color, Center Wheel Material, Regulator Type, Hairspring, Standard Dial Type, Railroad Grade Designation, Dial Feet Locations, Case Screw Locations
Population Registry for This Run
Image | Serial Number | Run Position | Primary Identification Method | Discovery Date | |
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There are 4 watches in the population registry for this run with 1 image.
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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 · April 15, 2025
Serial Number 1627835 was reported as inaccurate.
it's a R.R. Standard.
wepouaout 23 · June 12, 2022
Serial Number 1627939 was reported as accurate.
oilseed Supporter 472 · April 17, 2017
Serial Number 1627856 was reported as inaccurate.
diagram is not. Should show 3 finger bridge (ea
464). All Grade 186 had 3 finger bridge design.
From 1905 factory advertisement: 16Size Bridge,
Lever set, New Thin Model
nickel, 17 red ruby jewels, composition settings,
adjusted to temperature and four positions.
Finely finished beveled Train, polished gold
center wheel, counterpoised fork and pallet, Swiss
Breguet hairspring, Philippe coil, micrometer
screw regulator, double sunk enamel dial,
damaskeened, gold lettering, gilt regulator and
screws. (in the Illinois book by Roy and Bill, PP
191) .
69abody 166 · October 13, 2013
Serial Number 1627835 was reported as accurate.

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