Ball - Hamilton Pocket Watch: Serial Number 560051 (Grade 999H)

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Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/ball-hamilton/560051

Access Date: November 10, 2024

From the American Horology Archive:

Ball - Hamilton

Grade: 999H

Manufacturer:	Ball - Hamilton
Movement Serial Number:	560051
Grade:	999H
Model:	1
Estimated Production Year:	1907
Run Quantity:	1,000
Grade/Model Run:	7 of 12
Grade/Model Total Production:	8,100
Size:	18s
Jewels:	17j
Movement Configuration:	Openface
Movement Finish:	Nickel
Finish Pattern:	Cicular
Movement Setting:	Lever
Plate:	Full Plate
Double Roller:	Yes
Adjusted:	Yes
Adjusted # of Positions:	5
Adjusted to Temperature:	Yes
Railroad Grade:	Yes
U.S. Patents:	D25695, 565955
Movement Markings:	Official RR Standard 999 The Ball Watch Co. Cleveland. Adjusted 5 Positions Double Roller. 17 Jewels Sapphire Pallets Safety Pinion Trade Mark Patented June 30'96 Pat.Aug.18'96.
Case:	Various
Database Version:	v52.431
Advanced Metrics
PWDB Absolute Rarity Index: Scoped for Grade/Size/Model/Configuration	24.38
PWDB Relative Rarity Index: Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration	184.19
Share of Production: Share within Manufacturer - Scoped for Grade/Size/Model/Configuration	7.021%
Registry Population: Scoped for This Run Only	2 (0.20%)
Research Note: Hamilton 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.