Pocket Watch Database

From the American Horology Archive:
Rockford Grade 540 Pocket Watch

Rockford Watch Co.

Grade: 540

Manufacturer: Rockford Question Mark
Manufacturer Location: Rockford, Illinois Question Mark
Movement Serial Number: 558710 Question Mark
Grade: 540 Question Mark
Model: 4 Question Mark
Estimated Production Year: 1900 Question Mark
Run Quantity: 500 Question Mark
Grade/Model Run: 3 of 5 Question Mark
Grade/Model Total Production: 1,050 Question Mark
Size: 16s Question Mark
Jewels: 21j Question Mark
Movement Configuration: Hunting Question Mark
Movement Finish: Nickel Question Mark
Movement Setting: Lever Question Mark
Plate: 3/4 Plate Question Mark
Double Roller: Yes Question Mark
Center Wheel Material: Gold Question Mark
Standard Dial Type: Double-Sunk Question Mark
Adjusted: Yes Question Mark
Adjusted to Position: Yes Question Mark
Adjusted # of Positions: 5 Question Mark
Adjusted to Temperature: Yes Question Mark
Adjusted to Isochronism: Yes Question Mark
Railroad Grade: Yes Question Mark
Railroad Grade Classification: Class C Question Mark
Case: Various Question Mark
Run ID: 769.540G3.16S94.164M8.H376.L611.21J37 Question Mark
Data Research: 1907 Rockford Serial List
Question Mark
Database Version: v52.445 Question Mark
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
3.16 Question Mark
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
32.29 Question Mark
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
0.164% Question Mark
Registry Population:
Scoped for This Run Only
10 (2.00%) Question Mark

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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 · September 22, 2023

Serial Number 558710 was reported as accurate.

Anonymous · August 17, 2021

Serial Number 558573 was reported as accurate.

Anonymous · July 29, 2021

Serial Number 558807 was reported as accurate.

Anonymous · March 2, 2021

Serial Number 558754 was reported as accurate.

Anonymous · March 2, 2021

Serial Number 558754 was reported as accurate.

Anonymous · February 28, 2021

Serial Number 558754 was reported as accurate.

Anonymous · February 28, 2020

Serial Number 558710 was reported as accurate.

Anonymous · January 26, 2020

Serial Number 558605 was reported as accurate.

Anonymous · January 23, 2020

Serial Number 558605 was reported as accurate.

Anonymous · December 11, 2019

Serial Number 558701 was reported as inaccurate.

No further details were submitted with the report.

Anonymous · June 2, 2018

Serial Number 558513 was reported as accurate.

Anonymous · May 31, 2016

Serial Number 558876 was reported as accurate.

Anonymous · May 26, 2016

Serial Number 558874 was reported as inaccurate.

Note: Rg

Anonymous · March 26, 2013

Serial Number 558522 was reported as accurate.

Rockford Grade 540 Pocket Watch