Ball - Hamilton Pocket Watch: Serial Number B605900 (Grade 999N)

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Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/ball-hamilton/B605900

Access Date: December 14, 2024

From the American Horology Archive:

Ball - Hamilton

Grade: 999N

Manufacturer:	Ball - Hamilton
Movement Serial Number:	B605900
Grade:	999N
Model:	1
Estimated Production Year:	1919
Run Quantity:	200
Grade/Model Run:	5 of 7
Grade/Model Total Production:	5,700
Size:	16s
Jewels:	23j
Movement Configuration:	Openface
Movement Finish:	Nickel
Movement Setting:	Lever
Plate:	3/4 Plate
Barrel:	Motor
Adjusted:	Yes
Adjusted # of Positions:	5
Adjusted to Temperature:	Yes
Railroad Grade:	Yes
U.S. Patents:	D32330
Case:	Various
Database Version:	v52.508
Advanced Metrics
PWDB Absolute Rarity Index: Scoped for Grade/Size/Model/Configuration	17.16
PWDB Relative Rarity Index: Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration	129.58
Share of Production: Share within Manufacturer - Scoped for Grade/Size/Model/Configuration	4.941%
Registry Population: Scoped for This Run Only	7 (3.50%)
Research Note: Gold RR Seal, Ball Patent Hairspring Stud

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Population Registry for This Run

	Image	Serial Number	Run Position	Primary Identification Method	Discovery Date
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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.