Pocket Watch Database
https://pocketwatchdatabase.com/search/result/rockford/442521/movement
Access Date: March 03, 2025
From the American Horology Archive:

Rockford Watch Co.
Grade: 82a
Manufacturer: | Rockford | ![]() |
Manufacturer Location: | Rockford, Illinois | ![]() |
Movement Serial Number: | 442521 | ![]() |
Grade: | 82a | ![]() |
Model: | 8 | ![]() |
Estimated Production Year: | 1894 | ![]() |
Run Quantity: | 300 | ![]() |
Grade/Model Run: | 3 of 3 | ![]() |
Grade/Model Total Production: | 440 | ![]() |
Variant Est. Production: | 300 (18S-M8-17J-HTL) | ![]() |
Size: | 18s | ![]() |
Jewels: | 17j | ![]() |
Movement Configuration: | Hunting | ![]() |
Movement Finish: | Two-Tone | ![]() |
Movement Setting: | Lever | ![]() |
Plate: | Full Plate | ![]() |
Regulator: | Micrometric | ![]() |
Hairspring: | Breguet | ![]() |
Escapement Type: | Straight-line | ![]() |
Adjusted: | Yes | ![]() |
Case: | Various | ![]() |
Run ID: | 516.G3.18S449.188M140.H287.L379.17J37 | ![]() |
Data Research: |
1907 Rockford Serial List |
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Database Version: | v52.618 | ![]() |
Advanced Metrics | ||
PWDB Absolute Rarity Index: Scoped for Grade/Size/Model/Configuration | 1.32 | ![]() |
PWDB Relative Rarity Index: Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration | 13.51 | ![]() |
Share of Production: Share within Manufacturer - Scoped for Grade/Size/Model/Configuration | 0.068% | ![]() |
Registry Population: Scoped for This Run Only | 3 (1.00%) | ![]() |
Production Metrics Tree: Grade 82a
Target Profile: 18S-M8-17J-HTL-A
Rockford Grade 82a (All Variations): 440 ETP | |
18S: 440 100.00% 18s, Grade 82a |
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18S-M8: 440 100.00% 18s, Grade 82a, Model 8 |
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18S-M8-17J: 440 100.00% 18s, Grade 82a, Model 8, 17 Jewels |
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18S-M8-17J-HTL: 300 68.18% 18s, Grade 82a, Model 8, 17 Jewels, Hunting/Lever/Two-Tone |
Other: 140
Other Configs or Unclassified |
18S-M8-17J-HTL-A: 300 68.18% |
Population Registry for This Run
Image | Serial Number | Run Position | Primary Identification Method | Discovery Date | |
---|---|---|---|---|---|
There are 3 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.
ChrisG Top Contributor Supporter 618 · February 26, 2024
Serial Number 442521 was reported as accurate.
Anonymous · May 27, 2020
Serial Number 442716 was reported as inaccurate.

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This WatchFrom This Run
uploaded by ChrisG
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uploaded by okiejohn
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uploaded by Rickglick1
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Image Source/Credit: Jones & Horan Auctions
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uploaded by Rickglick1
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Image Source/Credit: Jones & Horan Auctions