Ball - Hamilton Pocket Watch: Serial Number 1B4686 (Grade 999B)

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Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/ball-hamilton/1B4686

Access Date: April 12, 2025

From the American Horology Archive:

Ball - Hamilton

Grade: 999B

Manufacturer:	Ball - Hamilton
Movement Serial Number:	1B4686
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:	v52.636
Advanced Metrics
PWDB Absolute Rarity Index: Scoped for Grade/Size/Model/Configuration	87.27
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: Scoped for This Run Only	9 (0.26%)

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Population Registry for This Run

	Image	Serial Number	Run Position	Primary Identification Method	Discovery Date
There are 9 watches in the population registry for this run with 3 images. Create a FREE account or login to view the population registry and add your watch to the registry. Create a Free Account

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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.

cjbrem Supporter 1041 · December 17, 2024

Serial Number 1B3326 was reported as accurate.

cjbrem Supporter 1041 · December 17, 2024

Serial Number 1B1554 was reported as accurate.

ebsrods Supporter 130 · June 8, 2024

Serial Number 1B2356 was reported as accurate.

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 235 · 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.