Pocket Watch Database
https://pocketwatchdatabase.com/search/result/rockford/330073/link
Access Date: August 31, 2024
From the American Horology Archive:
![Rockford Grade 87 Pocket Watch](https://pocketwatchdatabase.com/assets/images/models/rockford7-18s.jpg)
Rockford Watch Co.
Grade: 87
Manufacturer: | Rockford | ![]() |
Manufacturer Location: | Rockford, Illinois | ![]() |
Movement Serial Number: | 330073 | ![]() |
Grade: | 87 | ![]() |
Variation: | LP | ![]() |
Model: | 7 | ![]() |
Estimated Production Year: | 1889 | ![]() |
Run Quantity: | 800 | ![]() |
Grade/Model Run: | 2 of 8 | ![]() |
Grade/Model Total Production: | 5,500 | ![]() |
Size: | 18s | ![]() |
Jewels: | 15j | ![]() |
Jewel Setting: | Screw-Set | ![]() |
Movement Configuration: | Openface | ![]() |
Movement Finish: | Two-Tone | ![]() |
Movement Setting: | Lever | ![]() |
Plate: | Full Plate | ![]() |
Regulator: | Type 5 | ![]() |
Hairspring: | Breguet | ![]() |
Escapement Type: | Straight-line | ![]() |
Standard Dial Type: | Double-Sunk | ![]() |
Adjusted: | Yes | ![]() |
Movement Markings: | R.W.Co. Rockford Ill. Adjusted |
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Case: | Various | ![]() |
Run ID: | 309.87G2.18S307.187M29.O41.L172.15J123 | ![]() |
Data Research: |
1907 Rockford Serial List |
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Database Version: | v52.387 | ![]() |
Advanced Metrics | ||
PWDB Absolute Rarity Index: Scoped for Grade/Size/Model/Configuration | 16.56 | ![]() |
PWDB Relative Rarity Index: Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration | 169.25 | ![]() |
Share of Production: Share within Manufacturer - Scoped for Grade/Size/Model/Configuration | 0.857% | ![]() |
Registry Population: Scoped for This Run Only | 10 (1.25%) | ![]() |
Research Note: Rockford Serial Lists designate this run as featuring "Nickel" plates. However, this is not consistent with the other Grade 87 runs listed as "Nick. & Gilt" (two-tone). Observations in this run have confirmed movements feature a two-tone finish, indicating an error in the factory lists.
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Production Metrics Tree: Grade 87
Target Profile: 18S-M7-15J-OTL-A-LP
Rockford Grade 87 (All Variations): 5,500 ETP |
18S: 5,500 100.00% 18s, Grade 87 |
18S-M7: 5,500 100.00% 18s, Grade 87, Model 7 |
18S-M7-15J: 5,500 100.00% 18s, Grade 87, Model 7, 15 Jewels |
18S-M7-15J-OTL: 5,500 100.00% 18s, Grade 87, Model 7, 15 Jewels, Openface/Lever/Two-Tone |
18S-M7-15J-OTL-A: 5,500 100.00% |
18S-M7-15J-OTL-A-LP: 5,500 100.00% |
Population Registry for This Run
Image | Serial Number | Run Position | Primary Identification Method | Discovery Date | |
---|---|---|---|---|---|
There are 10 watches in the population registry for this run with 2 images.
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Help Us Help Others By Improving the Database:
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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.
Bostonwatch 59 · September 6, 2020
Serial Number 330260 was reported as accurate.
tsullivan 18 · May 3, 2015
Serial Number 330523 was reported as accurate.
tsullivan 18 · May 3, 2015
Serial Number 330523 was reported as accurate.
tsullivan 18 · May 3, 2015
Serial Number 330523 was reported as accurate.
![Rockford Grade 87 Pocket Watch](https://pocketwatchdatabase.com/assets/images/models/rockford7-18s.jpg)
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Image Source/Credit: eBay Auction