Pocket Watch Database

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

Ball - Hamilton

Grade: 999A

Manufacturer: Ball - Hamilton
Movement Serial Number: 586300
Grade: 999A
Model: 1
Estimated Production Year: 1908
Run Quantity: 500
Grade/Model Run: 19 of 25
Grade/Model Total Production: 14,000
Size: 18s
Jewels: 21j
Movement Configuration: Openface
Movement Finish: Nickel
Finish Pattern: Sunburst
Movement Setting: Lever
Plate: Full Plate
Double Roller: Yes
Regulator: Ball
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.
21 Jewels
Sapphire Pallets
Safety Pinion
Trade Mark
Patented June 30'96
Pat.Aug.18'96.
Case: Various
Database Version: v52.219
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
41.91
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
318.43
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
12.136%
Registry Population: 3 (0.60%)
Research Note: Hamilton Hairspring Stud

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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 · August 14, 2023

Serial Number 586187 was reported as accurate.

Gun4hire Supporter 42 · May 1, 2022

Serial Number 586088 was reported as accurate.

Anonymous · March 17, 2021

Serial Number 586211 was reported as accurate.

Anonymous · January 21, 2020

Serial Number 586451 was reported as accurate.

Anonymous · May 25, 2018

Serial Number 586451 was reported as accurate.

Anonymous · May 23, 2018

Serial Number 586461 was reported as accurate.

bwalder 137 · February 16, 2018

Serial Number 586300 was reported as accurate.

radarrob 1 · September 9, 2016

Serial Number 586431 was reported as accurate.

Anonymous · September 8, 2016

Serial Number 586431 was reported as accurate.

ncplumber 150 · November 10, 2015

Serial Number 586396 was reported as accurate.

Anonymous · October 13, 2015

Serial Number 586003 was reported as accurate.

Anonymous · April 19, 2015

Serial Number 586186 was reported as accurate.

Anonymous · July 22, 2014

Serial Number 586224 was reported as accurate.

Ball - Hamilton Grade 999A Pocket Watch