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Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/u.s.-watch-co.-waltham-mass/20
https://pocketwatchdatabase.com/search/result/u.s.-watch-co.-waltham-mass/20
Access Date: December 19, 2024
We noticed that you entered a relatively short serial number.
"20" could possibly indicate the grade of the watch and not the serial number of your movement. Serial numbers are usually more than a few digits.
"20" could possibly indicate the grade of the watch and not the serial number of your movement. Serial numbers are usually more than a few digits.
Due to the lack of existing factory records, our U.S. Watch Co. (Waltham, Mass) database has been reconstructed using observations of known watches.
As a result, the information may contain inaccuracies. Please let us know if you have details that can improve the database.
The United States Watch Co. of Waltham, Massachusetts should not be confused with the more common American Waltham Watch Co. If the movement is NOT marked "U.S. Watch Co." or "United States Watch Co." please conduct a lookup under the American Waltham Watch Company.
From the American Horology Archive:
U.S. Watch Co. (Waltham, Mass)
Grade: Dome
| Manufacturer: | U.S. Watch Co. (Waltham, Mass) |  |
| Manufacturer Location: | Waltham, Massachusetts | |
| Movement Serial Number: | 20 | |
| Grade: | Dome | |
| Model: | 1885 | |
| Estimated Production Year: | 1887 | |
| Run Quantity: | 50 | |
| Grade/Model Run: | 1 of 3 | |
| Grade/Model Total Production: | 5,750 | |
| Size: | 16s | |
| Jewels: | 7j | |
| Movement Configuration: | Openface | |
| Movement Finish: | Gilt | |
| Movement Setting: | Pendant | |
| Plate: | Full Plate | |
| Balance Type: | Expansion | |
| Regulator: | Plain | |
| Hairspring: | Flat | |
| Adjusted: | No | |
| Railroad Grade: | No | |
| Movement Markings: | U.S. Watch Co. Waltham, Mass. Chas. W. Woerd's Patents |
|
| Case: | Various | |
| Run ID: | 1.G1.16S1.161885M1.O1.P1.7J1 | |
| Database Version: | v52.516 | |
| Advanced Metrics | ||
| PWDB Absolute Rarity Index: Scoped for Grade/Size/Model/Configuration | 17.31 | |
| PWDB Relative Rarity Index: Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration | 117.38 | |
| Share of Production: Share within Manufacturer - Scoped for Grade/Size/Model/Configuration | 1.687% | |
| Registry Population: Scoped for This Run Only | 1 (2.00%) | |
Production Metrics Tree: Grade Dome
Target Profile: 16S-M1885-7J-OGP-U
| U.S. Watch Co. (Waltham, Mass) Grade Dome (All Variations): 5,750 ETP |
| 16S: 5,750 100.00% 16s, Grade Dome |
| 16S-M1885: 5,750 100.00% 16s, Grade Dome, Model 1885 |
| 16S-M1885-7J: 5,750 100.00% 16s, Grade Dome, Model 1885, 7 Jewels |
| 16S-M1885-7J-OGP: 5,750 100.00% 16s, Grade Dome, Model 1885, 7 Jewels, Openface/Pendant/Gilt |
| 16S-M1885-7J-OGP-U: 5,750 100.00% |
Population Registry for This Run
| Image | Serial Number | Run Position | Primary Identification Method | Discovery Date | |
|---|---|---|---|---|---|
|
There is 1 watch in the population registry for this run with 1 image.
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Verification Reports for this Run
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This WatchFrom This Runuploaded by pmwas1
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Image Source/Credit: eBay Auction
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Image Source/Credit: Jones & Horan Auctions
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Image Source/Credit: eBay Auction