Pocket Watch Database
Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/waltham/18331256
https://pocketwatchdatabase.com/search/result/waltham/18331256
Access Date: September 21, 2024
From the American Horology Archive:
American Waltham Watch Co.
Grade: No. 310
| Manufacturer: | Waltham |  |
| Manufacturer Location: | Waltham, Massachusetts | |
| Movement Serial Number: | 18331256 | |
| Grade: | No. 310 | |
| Model: | 1900 | |
| Estimated Production Year: | 1912 | |
| Run Quantity: | 2,000 | |
| Grade/Model Run: | 1 of 30 | |
| Grade/Model Total Production: | 109,199 | |
| Size: | 3/0s | |
| Jewels: | 7j | |
| Movement Configuration: | Openface | |
| Movement Finish: | Nickel | |
| Movement Setting: | Pendant | |
| Plate: | 3/4 Plate | |
| Hairspring: | Breguet | |
| Adjusted: | No | |
| Railroad Grade: | No | |
| Case: | Various | |
| Run ID: | 21905.G1.S6.M5.O13622.P7130.7J6282 | |
| Data Research: |
1954 Waltham "Gray Book" List NAWCC Waltham Serial Digest |
|
| Database Version: | v52.400 | |
| Advanced Metrics | ||
| PWDB Absolute Rarity Index: Scoped for Grade/Size/Model/Configuration | 328.77 | |
| PWDB Relative Rarity Index: Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration | 299.18 | |
| Share of Production: Share within Manufacturer - Scoped for Grade/Size/Model/Configuration | 0.327% | |
| Registry Population: Scoped for This Run Only | 5 (0.25%) | |
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Research Note: Waltham Serial Lists designate this run as Grade "Marsh" (3/0s, Model 1900, 7 Jewels, Openface, "U" Material). However, #18331256 has been reported as a standard Grade No. 310 with a cover marked, "Marsh's Patent Movement Protector - Waltham Watch Company," likely cooresponding to U.S. Patent #788923, issued to Edward A. Marsh on May 2, 1905.
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Population Registry for This Run
| Image | Serial Number | Run Position | Primary Identification Method | Discovery Date | |
|---|---|---|---|---|---|
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There are 5 watches in the population registry for this run.
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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.
rtwatches 943 · May 17, 2018
Serial Number 18331256 was reported as inaccurate.
Note: The movement is not marked Marsh, it is basically
a grade 310 fitted with a ring and a hinged cover
marked Marsh's Patent Movement Protector --
Waltham Watch Company.
a grade 310 fitted with a ring and a hinged cover
marked Marsh's Patent Movement Protector --
Waltham Watch Company.
Curator Response: Thanks for the report. The database has been updated accordingly.
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