Pocket Watch Database

From the American Horology Archive:
Rockford Grade 910 Pocket Watch

Rockford Watch Co.

Grade: 910

Some Marked "King Edward"

Manufacturer: Rockford
Manufacturer Location: Rockford, Illinois
Movement Serial Number: 539762
Grade: 910
Model: 9
Estimated Production Year: 1899
Run Quantity: 1,000
Grade/Model Run: 6 of 7
Total Production: 5,200
Size: 18s
Jewels: 21j
Jewel Material: Ruby & Sapphire
Jewel Setting: Screw-Set
Movement Configuration: Openface
Movement Finish: Nickel
Movement Signing Style: Block Letter
Movement Inlay Color: Gilt
Movement Setting: Lever
Plate: Full Plate
Train: Quick
Regulator: Reed
Hairspring: Breguet
Escapement Type: Straight-line
Standard Dial Type: Double-Sunk
Adjusted: Yes
Adjusted to Position: Yes
Adjusted # of Positions: 5
Adjusted to Temperature: Yes
Adjusted to Isochronism: Yes
Railroad Grade: Yes
Movement Markings: Rockford Watch Co.
21 Jewels
Adjusted R.G.
Data Research: 1907 Rockford Serial List
Case: Various
Database Version: v48.258

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Data Verification Reports

539401
Verification Serial Map
540400

Anonymous · July 16, 2022

Serial Number 539503 was reported as accurate.

Anonymous · March 8, 2021

Serial Number 540166 was reported as accurate.

jamiej 57 · March 5, 2021

Serial Number 540180 was reported as accurate.

Anonymous · June 25, 2019

Serial Number 539596 was reported as accurate.

Anonymous · April 25, 2019

Serial Number 539607 was reported as accurate.

Anonymous · April 4, 2019

Serial Number 540180 was reported as accurate.

batman7460 1 · March 8, 2019

Serial Number 539718 was reported as accurate.

Anonymous · December 15, 2018

Serial Number 539905 was reported as accurate.

Anonymous · November 2, 2018

Serial Number 539623 was reported as accurate.

Anonymous · October 26, 2018

Serial Number 540009 was reported as accurate.

rcterry 10 · October 18, 2018

Serial Number 540056 was reported as accurate.

Anonymous · July 10, 2017

Serial Number 540009 was reported as accurate.

rcterry 10 · June 2, 2017

Serial Number 540056 was reported as accurate.

Gasperoff 727 · December 26, 2016

Serial Number 540171 was reported as accurate.

slitvinoff 18 · September 29, 2016

Serial Number 540171 was reported as inaccurate.

Note: Movement Markings: King Edward. Dial marking:
Plymouth Watch Co

tsullivan 18 · September 12, 2016

Serial Number 539762 was reported as inaccurate.

Note: not King Edward, no gold jewel screws

Anonymous · November 6, 2014

Serial Number 539574 was reported as accurate.

Anonymous · October 24, 2014

Serial Number 540301 was reported as inaccurate.

Note: 540301
King Edward
21j 18sz
Adjusted

Carrato 68 · July 29, 2014

Serial Number 540119 was reported as accurate.

Rockford Grade 910 Pocket Watch