Pocket Watch Database


From the American Horology Archive:
Illinois Grade 186 Pocket Watch

Illinois Watch Co.

Grade: 186

Ruby Jewels

Private Label(s) in Run:

R.R. Standard

What is a Private Label?
Manufacturer: Illinois Question Mark
Manufacturer Location: Springfield, Illinois Question Mark
Movement Serial Number: 1627939 Question Mark
Grade: 186 Question Mark
Model: 5 Question Mark
Estimated Production Year: Login to View for Free Question Mark
Run Quantity: Login to View for Free Question Mark
Grade/Model Run: Login to View for Free Question Mark
Grade/Model Total Production: Login to View for Free Question Mark
Size: 16s Question Mark
Jewels: 17j Question Mark
Jewel Material: Login to View for Free Question Mark
Jewel Setting: Login to View for Free Question Mark
Movement Configuration: Openface Question Mark
Movement Finish: Nickel Question Mark
Movement Inlay Color: Login to View for Free Question Mark
Movement Setting: Lever Question Mark
Plate: 3/4 Bridge Plate Question Mark
Bridge Type: 3-Finger Question Mark
Barrel: Going Question Mark
Center Wheel Material: Login to View for Free Question Mark
Regulator: Login to View for Free Question Mark
Hairspring: Login to View for Free Question Mark
Standard Dial Type: Login to View for Free Question Mark
Adjusted: Yes Question Mark
Adjusted # of Positions: 4 Question Mark
Adjusted to Temperature: Yes Question Mark
Railroad Grade: Login to View for Free Question Mark
Dial Feet Locations: Login to View for Free Question Mark
Case Screw Locations: Login to View for Free Question Mark
Case: Various Question Mark
Run ID: 4603.186G24.16S971.165M301.O1700.L3740.17J902 Question Mark
Database Version: v52.645 Question Mark
Advanced Metrics
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Registry Population:
Scoped for This Run Only
4 (2.00%) Question Mark
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

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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.

Note: Information is correct, just wanted to note that
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.

Note: the specs listed are correct, but the movement
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) .
Changes since this report was submitted:
Plate changed from 3/4 to 3/4 Bridge

69abody 166 · October 13, 2013

Serial Number 1627835 was reported as accurate.

Changes since this report was submitted:
Plate changed from 3/4 to 3/4 Bridge

Anonymous · May 22, 2012

Serial Number 1627935 was reported as accurate.

Changes since this report was submitted:
Plate changed from 3/4 to 3/4 Bridge
Illinois Grade 186 Pocket Watch