Illinois Pocket Watch: Serial Number 1627939 (Grade 186)

Sell Your Watch Save to My Collection Print Page Find a Mainspring Find a Balance Staff

Similar Watches For Sale

When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.

1900 Illinois 16 size 17 Ruby Open Face Pocket Watch * RR approved * Keeps Time

Check Price Source: eBay.com

Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/illinois/1627939

Access Date: January 21, 2025

From the American Horology Archive:

Illinois Watch Co.

Grade: 186

Ruby Jewels

Private Label(s) in Run:

R.R. Standard

What is a Private Label?

Manufacturer:	Illinois
Manufacturer Location:	Springfield, Illinois
Movement Serial Number:	1627939
Grade:	186
Model:	5
Estimated Production Year:	1902
Run Quantity:	200
Grade/Model Run:	11 of 28
Grade/Model Total Production:	4,470
Size:	16s
Jewels:	17j
Jewel Material:	Ruby
Jewel Setting:	Screw-Set
Movement Configuration:	Openface
Movement Finish:	Nickel
Movement Inlay Color:	Gilt
Movement Setting:	Lever
Plate:	3/4 Bridge Plate
Bridge Type:	3-Finger
Barrel:	Going
Center Wheel Material:	Gold
Regulator:	Micrometric
Hairspring:	Breguet
Standard Dial Type:	Double-Sunk
Adjusted:	Yes
Adjusted # of Positions:	4
Adjusted to Temperature:	Yes
Railroad Grade:	Yes
Dial Feet Locations:	24.5, 36.5, 55.5
Case Screw Locations:	3.5, 37.5
Case:	Various
Run ID:	4603.186G24.16S971.165M301.O1700.L3739.17J900
Database Version:	v52.563
Advanced Metrics
PWDB Absolute Rarity Index: Scoped for Grade/Size/Model/Configuration	13.46
PWDB Relative Rarity Index: Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration	45.33
Share of Production: Share within Manufacturer - Scoped for Grade/Size/Model/Configuration	0.079%
Registry Population: Scoped for This Run Only	4 (2.00%)

Value Guide

What is My Watch Worth?

Have a Question?

Ask the experts in The Pocket Watch Group

Population Registry for This Run

	Image	Serial Number	Run Position	Primary Identification Method	Discovery Date
There are 4 watches in the population registry for this run with 1 image. Create a FREE account or login to view the population registry and add your watch to the registry. Create a Free Account

Help Us Help Others By Improving the Database:

Does this information describe your movement accurately?

Yes

Why Might This Information Be Incorrect?

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.

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