Pocket Watch Database

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

Ball - Hamilton

Grade: 999H

Manufacturer: Ball - Hamilton Question Mark
Movement Serial Number: 923245 Question Mark
Grade: 999H Question Mark
Model: 1 Question Mark
Estimated Production Year: 1911 Question Mark
Run Quantity: 500 Question Mark
Grade/Model Run: 12 of 12 Question Mark
Grade/Model Total Production: 8,100 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
Double Roller: Yes 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.
Motor Barrel
Adjusted 5 Positions
Double Roller.
17 Jewels
Sapphire Pallets
Safety Pinion
Trade Mark
Patented June 30'96
Pat.Aug.18'96.
Case: Various Question Mark
Database Version: v52.433 Question Mark
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
24.38 Question Mark
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
184.19 Question Mark
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
7.021% Question Mark
Registry Population:
Scoped for This Run Only
4 (0.80%) 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 · October 3, 2019

Serial Number 923088 was reported as accurate.

Andrew9000 85 · February 20, 2019

Serial Number 923245 was reported as accurate.

Anonymous · July 18, 2018

Serial Number 923047 was reported as accurate.

Ball - Hamilton Grade 999H Pocket Watch