Pocket Watch Database

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

Ball - Hamilton

Grade: 999B

Manufacturer: Ball - Hamilton Question Mark
Movement Serial Number: 14966 Question Mark
Grade: 999B Question Mark
Model: 1 Question Mark
Estimated Production Year: 1897 Question Mark
Run Quantity: 100 Question Mark
Grade/Model Run: 6 of 21 Question Mark
Grade/Model Total Production: 3,300 Question Mark
Size: 18s Question Mark
Jewels: 17j Question Mark
Movement Configuration: Openface Question Mark
Movement Finish: Nickel Question Mark
Finish Pattern: Circular Damascening 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
Movement Markings: Official RR Standard or Brotherhood Markings
Case: Various Question Mark
Database Version: v52.431 Question Mark
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
9.93 Question Mark
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
74.97 Question Mark
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
2.861% Question Mark
Registry Population:
Scoped for This Run Only
4 (4.00%) Question Mark
Research Note: “Patented” on Barrel Bridge

Help Us Help Others By Improving the Database:

Does this information describe your movement accurately?

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.


awalker1829 Supporter 74 · January 6, 2024

Serial Number 14930 was reported as accurate.

Anonymous · October 5, 2015

Serial Number 14974 was reported as inaccurate.

No further details were submitted with the report.
Changes since this report was submitted:
Plate changed from 3/4 to Full

rjrake 62 · October 12, 2013

Serial Number 14962 was reported as accurate.

Changes since this report was submitted:
Plate changed from 3/4 to Full
Ball - Hamilton Grade 999B Pocket Watch