Pocket Watch Database

From the American Horology Archive:
Rockford Grade 400 Pocket Watch

Rockford Watch Co.

Grade: 400

Winnebago

Manufacturer: Rockford
Manufacturer Location: Rockford, Illinois
Movement Serial Number: 625260
Grade: 400
Model: 4
Estimated Production Year: 1903
Run Quantity: 400
Grade/Model Run: 1 of 3
Grade/Model Total Production: 1,400
Size: 16s
Jewels: 17j
Movement Configuration: Hunting
Movement Finish: Nickel
Movement Setting: Lever
Plate: 3/4 Plate
Double Roller: Yes
Center Wheel Material: Gold
Standard Dial Type: Double-Sunk
Adjusted: Yes
Adjusted to Position: Yes
Adjusted # of Positions: 5
Adjusted to Temperature: Yes
Adjusted to Isochronism: Yes
Data Research: 1907 Rockford Serial List
Case: Various
Run ID: 904.400G1.16S183.164M17.H440.L703.17J297
Database Version: v52.235
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
4.21
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
43.06
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
0.218%
Registry Population: 9 (2.25%)
Research Note: Rockford Serial Lists designate this run as Grade 400, Pendant-Set. However, multiple reports indicate this run was actually finished as lever-set.

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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.


ChrisG Top Contributor Supporter 543 · January 28, 2024

Serial Number 625332 was reported as inaccurate.

Note: Image - 235392893585

Anonymous · August 5, 2022

Serial Number 625310 was reported as accurate.

Anonymous · August 4, 2022

Serial Number 625310 was reported as accurate.

texnet 684 · June 5, 2022

Serial Number 625398 was reported as accurate.

Anonymous · June 22, 2021

Serial Number 625207 was reported as accurate.

Anonymous · May 16, 2021

Serial Number 625107 was reported as accurate.

23Greenwich Supporter 189 · April 24, 2020

Serial Number 625183 was reported as inaccurate.

Note: Lever Set
Curator Response: Thanks for the report. This information has been noted in the research notes for this run.
Changes since this report was submitted:
Movement Setting changed from Pendant to Lever

Anonymous · December 17, 2019

Serial Number 625022 was reported as inaccurate.

Note: 625022 is lever set, RG on the middle bridge, and
flower design on the balance bridge like the 21
jewel.
Ref. Rockford 16s, Winnebago 17j OF.
Curator Response: Thanks for the report. If possible, please upload an image of the movement to your collection for further evaluation and documentation.
Changes since this report was submitted:
Movement Setting changed from Pendant to Lever
Rockford Grade 400 Pocket Watch