Pocket Watch Database

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

Ball - Hamilton

Grade: 999C

Manufacturer: Ball - Hamilton Question Mark
Movement Serial Number: 42155 Question Mark
Grade: 999C Question Mark
Model: 1 Question Mark
Estimated Production Year: 1898 Question Mark
Run Quantity: 100 Question Mark
Grade/Model Run: 7 of 8 Question Mark
Grade/Model Total Production: 335 Question Mark
Size: 18s Question Mark
Jewels: 17j Question Mark
Movement Configuration: Openface Question Mark
Movement Finish: Nickel Question Mark
Finish Pattern: Brakewheel 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: D26267, 565955, D24446 Question Mark
Movement Markings: Official BoRT Standard
Adjusted
Ball & Co. Cleveland
17 Jewels
Sapphire Pallets
Safety Pinion
Trade Mark
Adjusted
Patented Nov.17.96
Pat.Aug18'96
Case: Various Question Mark
Database Version: v52.449 Question Mark
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
1.01 Question Mark
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
7.51 Question Mark
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
0.290% Question Mark
Registry Population:
Scoped for This Run Only
1 (1.00%) Question Mark
Research Note: Patented Pierced "Balloon" Hands. , Brotherhood of Railroad Trainmen, 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 · March 30, 2021

Serial Number 42171 was reported as accurate.

Anonymous · July 20, 2014

Serial Number 42115 was reported as accurate.

Ball - Hamilton Grade 999C Pocket Watch