Pocket Watch Database

From the American Horology Archive:
Ball - Hamilton Grade 999B Pocket Watch

Ball - Hamilton

Grade: 999B

Manufacturer: Ball - Hamilton
Movement Serial Number: 1B4625
Grade: 999B
Model: 5
Estimated Production Year: 1946
Run Quantity: 3,400
Grade/Model Run: 4 of 12
Grade/Model Total Production: 28,800
Size: 16s
Jewels: 21j
Movement Configuration: Openface
Movement Finish: Nickel
Finish Pattern: Circular
Movement Setting: Lever
Plate: 3/4 Plate
Adjusted: Yes
Adjusted # of Positions: 6
Adjusted to Temperature: Yes
Railroad Grade: Yes
U.S. Patents: D32330
Movement Markings: Official Standard
Ball Watch Co.
Cleveland,O.
999B
21 Jewels
6 Positions Adjusted
Trade Mark
Case: Various
Database Version: v52.219
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
86.23
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
655.18
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
24.965%
Registry Population: 6 (0.18%)

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Does this information describe your movement accurately?

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 · July 6, 2023

Serial Number 1B3782 was reported as accurate.

Anonymous · January 23, 2023

Serial Number 1B2303 was reported as accurate.

Anonymous · July 12, 2022

Serial Number 1B2875 was reported as accurate.

Anonymous · June 21, 2022

Serial Number 1B4528 was reported as accurate.

Anonymous · February 13, 2022

Serial Number 1B4175 was reported as accurate.

Anonymous · February 2, 2022

Serial Number 1B2874 was reported as inaccurate.

Note: This movement was finished as a 23 Jewel 950, not
a 21 Jewel Ball 999. The factory ledgers confirm
this was indeed a 23 jewel movement.

Anonymous · November 7, 2021

Serial Number 1B2160 was reported as accurate.

Anonymous · August 25, 2021

Serial Number 1B3648 was reported as accurate.

giddykippa 234 · August 17, 2021

Serial Number 1B1903 was reported as accurate.

Anonymous · May 16, 2021

Serial Number 1B4688 was reported as accurate.

Anonymous · April 22, 2021

Serial Number 1B3961 was reported as accurate.

Anonymous · February 13, 2021

Serial Number 1B3717 was reported as accurate.

Anonymous · February 13, 2021

Serial Number 1B3717 was reported as inaccurate.

Note: This is a 99wB movement. Not a 999
Curator Response: Thanks for the report. If possible, please upload an image of the movement to your collection for further evaluation and documentation.

Anonymous · November 13, 2020

Serial Number 1B4217 was reported as accurate.

Anonymous · September 26, 2020

Serial Number 1B4390 was reported as accurate.

Anonymous · August 29, 2020

Serial Number 1B4217 was reported as accurate.

Anonymous · June 8, 2020

Serial Number 1B2056 was reported as accurate.

Anonymous · May 23, 2020

Serial Number 1B3236 was reported as accurate.

Anonymous · May 16, 2020

Serial Number 1B2920 was reported as accurate.

Anonymous · May 1, 2020

Serial Number 1B4643 was reported as accurate.

Anonymous · April 5, 2020

Serial Number 1B4106 was reported as accurate.

DocDoo 2 · February 16, 2020

Serial Number 1B3147 was reported as accurate.

Anonymous · February 12, 2020

Serial Number 1B1755 was reported as accurate.

Anonymous · October 23, 2019

Serial Number 1B4007 was reported as accurate.

Anonymous · September 13, 2019

Serial Number 1B2682 was reported as accurate.

Anonymous · August 29, 2019

Serial Number 1B1774 was reported as accurate.

Anonymous · August 11, 2019

Serial Number 1B3085 was reported as accurate.

Anonymous · July 17, 2019

Serial Number 1B4600 was reported as accurate.

Anonymous · June 29, 2019

Serial Number 1B4325 was reported as accurate.

Anonymous · May 18, 2019

Serial Number 1B2311 was reported as accurate.

giddykippa 234 · May 8, 2019

Serial Number 1B1903 was reported as accurate.

giddykippa 234 · May 8, 2019

Serial Number 1B1903 was reported as accurate.

Anonymous · March 27, 2019

Serial Number 1B1682 was reported as accurate.

Anonymous · March 21, 2019

Serial Number 1B3414 was reported as accurate.

Anonymous · March 7, 2019

Serial Number 1B1613 was reported as accurate.

Anonymous · February 5, 2019

Serial Number 1B3671 was reported as accurate.

Anonymous · January 17, 2019

Serial Number 1B2920 was reported as accurate.

Anonymous · January 4, 2019

Serial Number 1B3471 was reported as accurate.

Anonymous · December 19, 2018

Serial Number 1B1685 was reported as accurate.

Anonymous · September 22, 2018

Serial Number 1B3248 was reported as accurate.

Anonymous · July 23, 2018

Serial Number 1B3008 was reported as accurate.

Anonymous · July 17, 2018

Serial Number 1B2040 was reported as accurate.

Anonymous · July 8, 2018

Serial Number 1B2920 was reported as accurate.

Anonymous · May 27, 2018

Serial Number 1B4155 was reported as accurate.

cmdraven 3970 · May 26, 2018

Serial Number 1B4155 was reported as accurate.

GrizzlyBear 9 · March 1, 2018

Serial Number 1B2286 was reported as accurate.

Anonymous · January 4, 2018

Serial Number 1B3670 was reported as accurate.

Anonymous · November 7, 2017

Serial Number 1B3228 was reported as accurate.

Anonymous · October 22, 2017

Serial Number 1B3451 was reported as accurate.

Anonymous · September 21, 2017

Serial Number 1B1545 was reported as accurate.

Ball - Hamilton Grade 999B Pocket Watch