Pocket Watch Database


From the American Horology Archive:
Rockford Grade 83 Pocket Watch

Rockford Watch Co.

Grade: 83

Mixed Run: Adjusted and Unadjusted Movements

Private Label(s) in Run:

D.C. Jaccard - St. Louis, Mo.
Fred W. Koehler - Sharon, PA.

What is a Private Label?
Manufacturer: Rockford Question Mark
Manufacturer Location: Rockford, Illinois Question Mark
Movement Serial Number: 289657 Question Mark
Grade: 83 Question Mark
Model: 8 Question Mark
Estimated Production Year: 1887 Question Mark
Run Quantity: 1,500 Question Mark
Grade/Model Run: 12 of 32 Question Mark
Grade/Model Total Production: 21,100 Question Mark
Variant Est. Production: 20,400 (18S-M8-15J-HNL) Question Mark
Size: 18s Question Mark
Jewels: 15j Question Mark
Jewel Setting: Screw-Set Question Mark
Movement Configuration: Hunting Question Mark
Movement Finish: Nickel Question Mark
Movement Inlay Color: Black Question Mark
Movement Setting: Lever Question Mark
Plate: Full Plate Question Mark
Regulator: Type 5 Question Mark
Hairspring: Breguet Question Mark
Escapement Type: Straight-line Question Mark
Adjusted: Mixed Question Mark
Movement Markings: R.W.Co.
Rockford Ill.
Case: Various Question Mark
Run ID: 263.83G12.18S261.188M37.H118.L126.15J97 Question Mark
Data Research: 1907 Rockford Serial List
Question Mark
Database Version: v52.440 Question Mark
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
63.52 Question Mark
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
649.40 Question Mark
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
3.286% Question Mark
Registry Population:
Scoped for This Run Only
7 (0.47%) Question Mark
Research Note: #290852: Verified as Private Label Marked "D.C. Jaccard - St. Louis, Mo." and "Adjusted" [JH]. #290499: Verified as Not Marked "Adjusted" [JH]. #289699: Reported as not marked "Adjusted."

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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.


Snapper Supporter 145 · March 11, 2024

Serial Number 289576 was reported as accurate.

Anonymous · July 19, 2023

Serial Number 290625 was reported as accurate.

Anonymous · January 7, 2023

Serial Number 290833 was reported as accurate.

Anonymous · April 21, 2020

Serial Number 289699 was reported as inaccurate.

Note: Not marked adjusted.
Face dial marked: Fred W. Koehler. Sharon, PA.
Lever time adjuster.
Curator Response: Thanks for the report. This information has been noted in the research notes for this run.

mlfowler24 1 · December 12, 2018

Serial Number 290043 was reported as accurate.

BillJump1950 1 · July 21, 2017

Serial Number 290561 was reported as accurate.

Anonymous · December 20, 2016

Serial Number 290402 was reported as inaccurate.

No further details were submitted with the report.

Anonymous · April 23, 2015

Serial Number 289657 was reported as accurate.

Anonymous · March 30, 2015

Serial Number 289657 was reported as accurate.

Anonymous · March 28, 2015

Serial Number 289657 was reported as accurate.

Anonymous · October 27, 2014

Serial Number 290261 was reported as accurate.

Anonymous · October 27, 2014

Serial Number 290261 was reported as accurate.

Anonymous · December 2, 2013

Serial Number 290121 was reported as accurate.

Rockford Grade 83 Pocket Watch