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: Login to View Question Mark
Run Quantity: Login to View Question Mark
Grade/Model Run: Login to View Question Mark
Grade/Model Total Production: Login to View Question Mark
Size: 18s Question Mark
Jewels: 17j Question Mark
Movement Configuration: Openface Question Mark
Movement Finish: Nickel Question Mark
Finish Pattern: Login to View Question Mark
Movement Setting: Lever Question Mark
Plate: Full Plate Question Mark
Double Roller: Yes Question Mark
Adjusted: Login to View Question Mark
Adjusted # of Positions: Login to View Question Mark
Adjusted to Temperature: Login to View Question Mark
Railroad Grade: Login to View Question Mark
U.S. Patents: Login to View Question Mark
Movement Markings: Login to View
Case: Various Question Mark
Database Version: v52.645 Question Mark
Advanced Metrics
Members Only Data. Login or create a free account to unlock.
Registry Population:
Scoped for This Run Only
4 (0.80%) Question Mark
Research Note: Hamilton Hairspring Stud
11 Additional Member-Only Data Points Available

The following information is unlocked with a free account:

Estimated Production Year, Run Quantity, Grade/Model Run, Grade/Model Total Production, Finish Pattern, Adjustments, Positional Adjustments, Temperature Adjustments, Railroad Grade Designation, U.S. Patents, Movement Markings

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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