Pocket Watch Database

From the American Horology Archive:
Illinois Grade 275 Pocket Watch

Illinois Watch Co.

Grade: 275

Manufacturer: Illinois
Manufacturer Location: Springfield, Illinois
Movement Serial Number: 3627216
Grade: 275
Model: 3
Estimated Production Year: 1920
Run Quantity: 1,000
Total Production: 41,400
Size: 12s
Jewels: 21j
Movement Configuration: Openface
Movement Finish: Nickel
Movement Setting: Pendant
Plate: Bridge Plate
Bridge Type: Center
Barrel: Going
Adjusted: Yes
Adjusted # of Positions: 3
Adjusted to Temperature: Yes
Railroad Grade: No
Dial Feet Locations: 20.5, 39.0, 55.0
Case Screw Locations: 2.5, 35.5
Case: Various
Registry Population: 7 (0.70%)
Database Version: v49.391

Population Registry for This Run

Image Serial Number Run Position Primary Identification Method Discovery Date
1 3627069 #69 Marketplace April 16, 2021
2 3627159 #159 Marketplace January 30, 2013
3 3627216 #216 Collection August 03, 2020
4 3627469 #469 Collection March 28, 2017
5 3627513 #513 Marketplace March 31, 2016
6 3627725 #725 Collection December 14, 2015
7 3627972 #972 Marketplace November 28, 2015
Standard Deviation of Known Examples: 325.82 (Expected: 288.82, Δ37.00/3.70%)

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Data Verification Reports

3627001
Verification Serial Map
3628000

Anonymous · May 12, 2022

Serial Number 3627727 was reported as accurate.

rtwatches 943 · August 19, 2021

Serial Number 3627001 was reported as accurate.

Anonymous · August 3, 2020

Serial Number 3627216 was reported as accurate.

Anonymous · September 22, 2018

Serial Number 3627484 was reported as accurate.

Anonymous · August 24, 2018

Serial Number 3627001 was reported as accurate.

Anonymous · March 28, 2017

Serial Number 3627469 was reported as accurate.

oilseed Supporter 468 · March 11, 2017

Serial Number 3627451 was reported as accurate.

Anonymous · January 22, 2015

Serial Number 3627620 was reported as accurate.

Anonymous · November 5, 2012

Serial Number 3627219 was reported as accurate.

Illinois Grade 275 Pocket Watch