Pocket Watch Database
Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/rockford/509858
https://pocketwatchdatabase.com/search/result/rockford/509858
Access Date: January 21, 2025
From the American Horology Archive:
Rockford Watch Co.
Grade: 920
| Manufacturer: | Rockford |  |
| Manufacturer Location: | Rockford, Illinois | |
| Movement Serial Number: | 509858 | |
| Grade: | 920 | |
| Model: | 7 | |
| Estimated Production Year: | 1897 | |
| Run Quantity: | 108 | |
| Grade/Model Run: | 5 of 35 | |
| Grade/Model Total Production: | 551 | |
| Size: | 18s | |
| Jewels: | 17j | |
| Jewel Setting: | Screw-Set | |
| Movement Configuration: | Openface | |
| Movement Finish: | Nickel | |
| Movement Setting: | Lever | |
| Plate: | Full Plate | |
| Train: | Quick | |
| Regulator: | Micrometric | |
| Hairspring: | Breguet | |
| Escapement Type: | Straight-line | |
| Standard Dial Type: | Double-Sunk | |
| Adjusted: | Yes | |
| Adjusted to Position: | Yes | |
| Adjusted to Temperature: | Yes | |
| Railroad Grade: | Yes | |
| Case: | Various | |
| Run ID: | 572.920G5.18S505.187M112.O138.L434.17J90 | |
| Data Research: |
1907 Rockford Serial List |
|
| Database Version: | v52.563 | |
| Advanced Metrics | ||
| PWDB Absolute Rarity Index: Scoped for Grade/Size/Model/Configuration | 1.66 | |
| PWDB Relative Rarity Index: Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration | 16.93 | |
| Share of Production: Share within Manufacturer - Scoped for Grade/Size/Model/Configuration | 0.086% | |
| Registry Population: Scoped for This Run Only | 2 (1.85%) | |
Population Registry for This Run
| Image | Serial Number | Run Position | Primary Identification Method | Discovery Date | |
|---|---|---|---|---|---|
|
There are 2 watches in the population registry for this run with 1 image.
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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.
ngupaan 95 · October 22, 2016
Serial Number 509794 was reported as inaccurate.
Note: A small booklet produced by the Rockford Watch Co
showing their current models at the time. It is
called "The Name Rockford Designates a High Grade
Watch". Models included the 500 Grade's, 800
Grade's, 900 Grade's & the 140, 150 & 160 Grade's.
This does not list a publish date. If you go to
this EBay item you will see I have shown an
excerpt & photo from the booklet clearly stating
the attributes of the Grade 920.
showing their current models at the time. It is
called "The Name Rockford Designates a High Grade
Watch". Models included the 500 Grade's, 800
Grade's, 900 Grade's & the 140, 150 & 160 Grade's.
This does not list a publish date. If you go to
this EBay item you will see I have shown an
excerpt & photo from the booklet clearly stating
the attributes of the Grade 920.
Curator Response: Thanks for the report. This has been on my list to go back and update accordingly.
ngupaan 95 · October 21, 2016
Serial Number 509794 was reported as inaccurate.
Note: Adjusted
Adjusted to Positions & Temperature according to
Rockford Material Catalogue
Railroad Grade in it's Day
Adjusted to Positions & Temperature according to
Rockford Material Catalogue
Railroad Grade in it's Day
Curator Response: Thanks for the report. Which Rockford material catalog are you referencing as a source?
robertjblais 21 · February 3, 2014
Serial Number 509858 was reported as accurate.
