Pocket Watch Database
https://pocketwatchdatabase.com/search/result/ball-hamilton/B650430
Access Date: April 25, 2025
From the American Horology Archive:
Ball - Hamilton
Grade: 999P
Manufacturer: | Ball - Hamilton | ![]() |
Movement Serial Number: | B650430 | ![]() |
Grade: | 999P | ![]() |
Model: | 1 | ![]() |
Estimated Production Year: | 1940 | ![]() |
Run Quantity: | 2,000 | ![]() |
Grade/Model Run: | 14 of 15 | ![]() |
Grade/Model Total Production: | 40,300 | ![]() |
Size: | 16s | ![]() |
Jewels: | 21j | ![]() |
Movement Configuration: | Openface | ![]() |
Movement Finish: | Nickel | ![]() |
Finish Pattern: | Circular | ![]() |
Movement Setting: | Lever | ![]() |
Plate: | 3/4 Plate | ![]() |
Barrel: | Going | ![]() |
Adjusted: | Yes | ![]() |
Adjusted # of Positions: | 5 | ![]() |
Adjusted to Temperature: | Yes | ![]() |
Railroad Grade: | Yes | ![]() |
U.S. Patents: | D32330 | ![]() |
Movement Markings: | Official Standard Ball Watch Co. Cleveland,O. 21 Jewels Adjusted 5 Positions Sapphire Pallets Trade Mark |
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Case: | Various | ![]() |
Database Version: | v52.640 | ![]() |
Advanced Metrics | ||
PWDB Absolute Rarity Index: Scoped for Grade/Size/Model/Configuration | 122.12 | ![]() |
PWDB Relative Rarity Index: Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration | 916.84 | ![]() |
Share of Production: Share within Manufacturer - Scoped for Grade/Size/Model/Configuration | 34.934% | ![]() |
Registry Population: Scoped for This Run Only | 18 (0.90%) | ![]() |
Research Note: Hamilton Hairspring Stud
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Population Registry for This Run
Image | Serial Number | Run Position | Primary Identification Method | Discovery Date | |
---|---|---|---|---|---|
There are 18 watches in the population registry for this run with 9 images.
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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 · October 21, 2016
Serial Number B650643 was reported as inaccurate.
Anonymous · June 25, 2016
Serial Number B651409 was reported as inaccurate.
set, and is therefore railroad grade.
Cheers. duffy l.
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