Pocket Watch Database
Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/rockford/310670
https://pocketwatchdatabase.com/search/result/rockford/310670
Access Date: November 10, 2024
From the American Horology Archive:
Rockford Watch Co.
Grade: 88
Private Label(s) in Run:
Special, Adjusted for J.M. Martin
R.D. Currier & Co.
What is a Private Label?| Manufacturer: | Rockford |  |
| Manufacturer Location: | Rockford, Illinois | |
| Movement Serial Number: | 310670 | |
| Grade: | 88 | |
| Variation: | LP | |
| Model: | 7 | |
| Estimated Production Year: | 1888 | |
| Run Quantity: | 200 | |
| Grade/Model Run: | 1 of 5 | |
| Grade/Model Total Production: | 1,700 | |
| Size: | 18s | |
| Jewels: | 16j | |
| Jewel Setting: | Gold Settings (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 | |
| Adjusted to Position: | Yes | |
| Adjusted to Temperature: | Yes | |
| Adjusted to Isochronism: | Yes | |
| Movement Markings: | R.W.Co. Rockford Ill. Adjusted |
|
| Case: | Various | |
| Run ID: | 288.88G1.18S286.187M26.O38.L151.16J2 | |
| Data Research: |
1907 Rockford Serial List |
|
| Database Version: | v52.431 | |
| Advanced Metrics | ||
| PWDB Absolute Rarity Index: Scoped for Grade/Size/Model/Configuration | 5.12 | |
| PWDB Relative Rarity Index: Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration | 52.29 | |
| Share of Production: Share within Manufacturer - Scoped for Grade/Size/Model/Configuration | 0.265% | |
| Registry Population: Scoped for This Run Only | 3 (1.50%) | |
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Research Note: Rockford Serial Lists designate this run as featuring "Nickel" plates. However, this is inconsistent with other Grade 88 runs listed as "Nick. & Gilt" (two-tone). Observations in this run have confirmed two-tone finish, indicating an error in factory lists.
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Production Metrics Tree: Grade 88
Target Profile: 18S-M7-16J-OTL-APTI-LP
| Rockford Grade 88 (All Variations): 1,700 ETP |
| 18S: 1,700 100.00% 18s, Grade 88 |
| 18S-M7: 1,700 100.00% 18s, Grade 88, Model 7 |
| 18S-M7-16J: 1,700 100.00% 18s, Grade 88, Model 7, 16 Jewels |
| 18S-M7-16J-OTL: 1,700 100.00% 18s, Grade 88, Model 7, 16 Jewels, Openface/Lever/Two-Tone |
| 18S-M7-16J-OTL-APTI: 1,700 100.00% |
| 18S-M7-16J-OTL-APTI-LP: 1,700 100.00% |
Population Registry for This Run
| Image | Serial Number | Run Position | Primary Identification Method | Discovery Date | |
|---|---|---|---|---|---|
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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.
Anonymous · April 21, 2019
Serial Number 310633 was reported as accurate.
Anonymous · March 3, 2019
Serial Number 310565 was reported as accurate.
Anonymous · August 13, 2017
Serial Number 310501 was reported as accurate.
Changes since this report was submitted:
Movement Finish changed from Nickel to Two-Tone
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This WatchFrom This Runuploaded by pocketwatch101
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uploaded by Rockfordguy
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uploaded by Rockfordguy
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Image Source/Credit: Jones & Horan Auctions