Pocket Watch Database

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

Ball - Hamilton

Grade: 999A

Manufacturer: Ball - Hamilton Question Mark
Movement Serial Number: 586088 Question Mark
Grade: 999A Question Mark
Model: 1 Question Mark
Estimated Production Year: 1908 Question Mark
Run Quantity: 500 Question Mark
Grade/Model Run: 19 of 25 Question Mark
Grade/Model Total Production: 14,000 Question Mark
Size: 18s Question Mark
Jewels: 21j Question Mark
Movement Configuration: Openface Question Mark
Movement Finish: Nickel Question Mark
Finish Pattern: Sunburst Question Mark
Movement Setting: Lever Question Mark
Plate: Full Plate Question Mark
Double Roller: Yes Question Mark
Regulator: Ball Question Mark
Adjusted: Yes Question Mark
Adjusted # of Positions: 5 Question Mark
Adjusted to Temperature: Yes Question Mark
Railroad Grade: Yes Question Mark
U.S. Patents: D25695, 565955 Question Mark
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 Question Mark
Database Version: v52.546 Question Mark
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
42.17 Question Mark
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
318.43 Question Mark
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
12.136% Question Mark
Registry Population:
Scoped for This Run Only
3 (0.60%) Question Mark
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 50 · 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