Pocket Watch Database

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

Ball - Hamilton

Grade: 999E

Manufacturer: Ball - Hamilton Question Mark
Movement Serial Number: 170941 Question Mark
Grade: 999E Question Mark
Model: 1 Question Mark
Estimated Production Year: 1902 Question Mark
Run Quantity: 100 Question Mark
Grade/Model Run: 4 of 6 Question Mark
Grade/Model Total Production: 1,450 Question Mark
Size: 18s Question Mark
Jewels: 17j Question Mark
Movement Configuration: Openface Question Mark
Movement Finish: Nickel Question Mark
Finish Pattern: Circular Question Mark
Movement Setting: Lever Question Mark
Plate: Full Plate Question Mark
Regulator: Ball Question Mark
Adjusted: Yes Question Mark
Railroad Grade: Yes Question Mark
U.S. Patents: D25695, 565955 Question Mark
Movement Markings: Official RR Standard
The Ball Watch Co. Cleveland.
Adjusted
Single Roller.
17 Jewels
Sapphire Pallets
Safety Pinion
Trade Mark
Patented June 30'96
Pat.Aug.18'96.
Case: Various Question Mark
Database Version: v52.467 Question Mark
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
4.36 Question Mark
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
32.88 Question Mark
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
1.257% Question Mark
Registry Population:
Scoped for This Run Only
2 (2.00%) Question Mark
Research Note: For use on RR with fewer requirements

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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 · July 14, 2023

Serial Number 170944 was reported as accurate.

ebsrods Supporter 130 · July 15, 2020

Serial Number 170988 was reported as accurate.

LDJolly 2 · February 1, 2016

Serial Number 170941 was reported as inaccurate.

No further details were submitted with the report.

Anonymous · July 9, 2015

Serial Number 170962 was reported as accurate.

Anonymous · June 23, 2015

Serial Number 170962 was reported as inaccurate.

Note: # of positions: 5
Additionally this movement is signed "single
roller"

Anonymous · June 23, 2015

Serial Number 170962 was reported as accurate.

Anonymous · June 19, 2015

Serial Number 170962 was reported as accurate.

Ball - Hamilton Grade 999E Pocket Watch