Pocket Watch Database


From the American Horology Archive:
Rockford Grade 66 Pocket Watch

Rockford Watch Co.

Grade: 66

Manufacturer: Rockford Question Mark
Manufacturer Location: Rockford, Illinois Question Mark
Movement Serial Number: 431296 Question Mark
Grade: 66 Question Mark
Variation: LS Question Mark
Model: 7 Question Mark
Estimated Production Year: 1894 Question Mark
Run Quantity: 500 Question Mark
Grade/Model Run: 17 of 17 Question Mark
Grade/Model Total Production: 14,700 Question Mark
Variant Est. Production: 5,000 (18S-M7-11J-ONL-U-LS) Question Mark
Size: 18s Question Mark
Jewels: 11j Question Mark
Jewel Setting: Screw-Set Question Mark
Movement Configuration: Openface Question Mark
Movement Finish: Nickel Question Mark
Movement Inlay Color: Black Question Mark
Movement Setting: Lever Question Mark
Plate: Full Plate Question Mark
Regulator: Plain Question Mark
Hairspring: Flat Question Mark
Escapement Type: Straight-line Question Mark
Standard Dial Type: Single-Sunk Question Mark
Adjusted: No Question Mark
Railroad Grade: No Question Mark
Movement Markings: R.W.Co.
Rockford Ill.
Case: Various Question Mark
Run ID: 473.66G17.18S406.187M86.O98.L336.11J111 Question Mark
Data Research: 1907 Rockford Serial List
Question Mark
Database Version: v52.640 Question Mark
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
44.54 Question Mark
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
452.42 Question Mark
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
2.288% Question Mark
Registry Population:
Scoped for This Run Only
3 (0.60%) Question Mark
$ Estimated Value (12 Month Change): 3.52% Analyzing 73 Sales Question Mark
Research Note: Rockford Serial Lists designate this run as Grade 66, Model 7, Nickel, 11 Jewels. However, #431003 has been verified as Marked "17 J" "Adjusted" and features two-tone plates [JH]. Similar movements have been observed in other Grade 66 runs with the same damaskeening pattern (#428068 and #428967, also marked "17 J" and "Adjusted"), more consistent with Grade 60.

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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 · April 1, 2025

Serial Number 431003 was reported as accurate.

ChrisG Top Contributor Supporter 620 · February 9, 2024

Serial Number 431283 was reported as inaccurate.

Note: Image - 305390289393

Anonymous · February 18, 2021

Serial Number 431401 was reported as inaccurate.

Note: 431401 has two tone plates and is stamped 17 J
Possible model 60?
Curator Response: Thanks for the report. If possible, please upload an image of the movement to your collection for further evaluation and documentation.

Anonymous · November 7, 2018

Serial Number 431003 was reported as inaccurate.

Note: two-tone mvt is marked 17J - Nathan, I'll send you
an email with a photo - this is Diana from Jones &
Horan
Curator Response: Thanks for the report. This information has been added to the research notes for this run.

Anonymous · October 14, 2017

Serial Number 431190 was reported as accurate.

Donhawes 20 · January 4, 2014

Serial Number 431137 was reported as accurate.

Rockford Grade 66 Pocket Watch