Pocket Watch Database

We noticed that you entered a relatively short serial number.
"4509" could possibly indicate the grade of the watch and not the serial number of your movement. Serial numbers are usually more than a few digits.
From the American Horology Archive:
Rockford Grade 9 Jewels Pocket Watch Movement

Rockford Watch Co.

Grade: 9 Jewels

Original data is missing for this range. Please report information about your watch movement, if known.

Manufacturer: Rockford
Manufacturer Location: Rockford, Illinois
Movement Serial Number: 4509
Grade: 9 Jewels
Model: 1
Estimated Production Year: 1877
Size: 18s
Jewels: 9j
Movement Configuration: Adaptable
Movement Finish: Gilt
Movement Setting: Transition
Plate: Full Plate
Regulator: Plain
Railroad Grade: No
Data Research: 1907 Rockford Serial List
Database Version: v48.129

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Data Verification Reports

4001
Verification Serial Map
5000

Bostonjoe Top Contributor 169 · January 29, 2022

Serial Number 4509 was reported as accurate.

Anonymous · July 9, 2021

Serial Number 4447 was reported as inaccurate.

Note: The pics of this watch on ebay show that the
movement, with this serial number, is engraved as
having 11 jewels, not nine.

Anonymous · December 24, 2020

Serial Number 4942 was reported as inaccurate.

Note: This is a KWKS movement. It is marked 9 (nine)
Jewel, Extra. This should be from 1877, second
year of production.
Changes since this report was submitted:
Grade changed from Unknown to 9 Jewels
Jewels changed from 11j or 15j to 9J
Movement Configuration changed from Either to Adaptable

Anonymous · May 2, 2020

Serial Number 4527 was reported as accurate.

Changes since this report was submitted:
Grade changed from Unknown to 9 Jewels
Jewels changed from 11j or 15j to 9J
Movement Configuration changed from Either to Adaptable

wmike565 Supporter 106 · September 13, 2018

Serial Number 4254 was reported as inaccurate.

Note: Movement is key wind and key set, 15 jewels.
Picture is provided
Changes since this report was submitted:
Grade changed from Unknown to 9 Jewels
Jewels changed from 11j or 15j to 9J
Movement Configuration changed from Either to Adaptable

beelzebud 6 · September 3, 2018

Serial Number 4810 was reported as inaccurate.

Note: Note: Is marked 9 jewels BUT also EXTRA on barrel
bridge
Changes since this report was submitted:
Grade changed from Unknown to 9 Jewels
Jewels changed from 11j or 15j to 9J
Movement Configuration changed from Either to Adaptable

Anonymous · June 28, 2018

Serial Number 4527 was reported as inaccurate.

Note: 9 jewel movement
Changes since this report was submitted:
Grade changed from Unknown to 9 Jewels
Jewels changed from 11j or 15j to 9J
Movement Configuration changed from Either to Adaptable

beelzebud 6 · June 18, 2018

Serial Number 4107 was reported as inaccurate.

Note: Transitional private label movement 11- 15 GJS.
Crown at 3pm
Changes since this report was submitted:
Grade changed from Unknown to 9 Jewels
Movement Configuration changed from Either to Adaptable
Movement Setting changed from Key to Transition

Anonymous · January 25, 2018

Serial Number 4058 was reported as inaccurate.

Note: 15 jewels
Changes since this report was submitted:
Grade changed from Unknown to 9 Jewels
Movement Configuration changed from Either to Adaptable
Movement Setting changed from Key to Transition

beelzebud 6 · January 19, 2018

Serial Number 4125 was reported as inaccurate.

No further details were submitted with the report.
Changes since this report was submitted:
Grade changed from Unknown to 9 Jewels
Movement Configuration changed from Either to Adaptable
Movement Setting changed from Key to Transition

Anonymous · September 26, 2017

Serial Number 4564 was reported as accurate.

Changes since this report was submitted:
Grade changed from Unknown to 9 Jewels
Movement Configuration changed from Either to Adaptable
Movement Setting changed from Key to Transition

Anonymous · October 24, 2016

Serial Number 4058 was reported as inaccurate.

No further details were submitted with the report.
Changes since this report was submitted:
Grade changed from Unknown to 9 Jewels
Movement Configuration changed from Either to Adaptable
Movement Setting changed from Key to Transition

Anonymous · January 9, 2016

Serial Number 4941 was reported as accurate.

Changes since this report was submitted:
Grade changed from Unknown to 9 Jewels
Movement Configuration changed from Either to Adaptable
Movement Setting changed from Key to Transition

Anonymous · February 27, 2014

Serial Number 4667 was reported as accurate.

Changes since this report was submitted:
Grade changed from Unknown to 9 Jewels
Movement Configuration changed from Hunting to Adaptable
Movement Setting changed from Key to Transition

tomc1234 30 · January 11, 2014

Serial Number 4268 was reported as accurate.

Changes since this report was submitted:
Grade changed from Unknown to 9 Jewels
Movement Configuration changed from Hunting to Adaptable
Movement Setting changed from Key to Transition

Anonymous · October 9, 2013

Serial Number 4263 was reported as inaccurate.

Note: Mine is marked 15 jewels. but all else is the same
Changes since this report was submitted:
Grade changed from Unknown to 9 Jewels
Movement Configuration changed from Hunting to Adaptable
Movement Setting changed from Key to Transition

tomc1234 30 · September 3, 2013

Serial Number 4268 was reported as accurate.

Changes since this report was submitted:
Grade changed from Unknown to 9 Jewels
Movement Configuration changed from Hunting to Adaptable
Movement Setting changed from Key to Transition

Anonymous · April 26, 2013

Serial Number 4874 was reported as inaccurate.

No further details were submitted with the report.
Changes since this report was submitted:
Grade changed from Unknown to 9 Jewels
Movement Configuration changed from Hunting to Adaptable
Movement Setting changed from Key to Transition

Anonymous · April 26, 2013

Serial Number 4862 was reported as inaccurate.

No further details were submitted with the report.
Changes since this report was submitted:
Grade changed from Unknown to 9 Jewels
Movement Configuration changed from Hunting to Adaptable
Movement Setting changed from Key to Transition

Anonymous · April 26, 2013

Serial Number 4862 was reported as inaccurate.

Note: Is marked 9 jewels BUT also EXTRA on barrel bridge
Changes since this report was submitted:
Grade changed from Unknown to 9 Jewels
Movement Configuration changed from Hunting to Adaptable
Movement Setting changed from Key to Transition

Anonymous · March 7, 2013

Serial Number 4125 was reported as inaccurate.

Note: not adjusted
private label: Thomas C Calvert
not RR grade
Changes since this report was submitted:
Grade changed from Unknown to 9 Jewels
Movement Configuration changed from Hunting to Adaptable
Movement Setting changed from Key to Transition
Rockford Grade 9 Jewels Pocket Watch Movement