Pocket Watch Database

From the American Horology Archive:

Ball - Hamilton

Grade: 999G

Manufacturer: Ball - Hamilton Question Mark
Movement Serial Number: 642723 Question Mark
Grade: 999G Question Mark
Model: 1A Question Mark
Estimated Production Year: 1910 Question Mark
Run Quantity: 175 Question Mark
Grade/Model Run: 12 of 15 Question Mark
Grade/Model Total Production: 4,400 Question Mark
Size: 18s Question Mark
Jewels: 19j 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
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 BofRT Standard
999
Ball Watch Co. Cleveland, O.
Adjusted
Double Roller.
Motor Barrel
19 Jewels
Sapphire Pallets
Safety Pinion
Trade Mark
Patented June 30'96
Pat.Aug.18'96.
Case: Various Question Mark
Database Version: v52.431 Question Mark
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
13.24 Question Mark
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
100.00 Question Mark
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
3.814% Question Mark
Registry Population:
Scoped for This Run Only
2 (1.14%) Question Mark

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.


Andrew9000 85 · July 25, 2023

Serial Number 642700 was reported as accurate.

Durant1 42 · October 20, 2022

Serial Number 642723 was reported as accurate.

Anonymous · May 27, 2021

Serial Number 642719 was reported as accurate.

Anonymous · September 25, 2018

Serial Number 642734 was reported as inaccurate.

No further details were submitted with the report.

Anonymous · February 27, 2018

Serial Number 642719 was reported as accurate.

Anonymous · November 16, 2016

Serial Number 642637 was reported as accurate.

bwalder 137 · August 24, 2016

Serial Number 642611 was reported as inaccurate.

Note: Movement markings are BRT