Pocket Watch Database

From the American Horology Archive:

Ball - Waltham

Grade: Official Standard

Manufacturer: Ball - Waltham Question Mark
Manufacturer Location: Waltham, Massachusetts Question Mark
Movement Serial Number: B134834 Question Mark
Grade: Official Standard Question Mark
Model: 1899 Question Mark
Estimated Production Year: 1899 Question Mark
Run Quantity: 400 Question Mark
Grade/Model Run: 9 of 107 Question Mark
Grade/Model Total Production: 71,861 Question Mark
Size: 16s Question Mark
Jewels: 17j Question Mark
Jewel Setting: Gold Settings (Screw-Set) Question Mark
Movement Configuration: Openface Question Mark
Movement Finish: Nickel Question Mark
Finish Pattern: Circular Question Mark
Movement Setting: Lever Question Mark
Plate: 3/4 Plate Question Mark
Regulator: Reed Question Mark
Hairspring: Breguet Question Mark
Adjusted: Yes Question Mark
Adjusted to Position: Yes Question Mark
Adjusted # of Positions: 5 Question Mark
Adjusted to Temperature: Yes Question Mark
Adjusted to Isochronism: Yes Question Mark
Railroad Grade: Yes Question Mark
Railroad Grade Classification: Class A Question Mark
U.S. Patents: D32330 Question Mark
Case: Various Question Mark
Database Version: v52.591 Question Mark
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
213.95 Question Mark
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
1,381.31 Question Mark
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
75.276% Question Mark
Registry Population:
Scoped for This Run Only
1 (0.25%) Question Mark
Research Note: Corresponds to Waltham Serial run starting with #9,134,601

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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 8, 2020

Serial Number B134943 was reported as inaccurate.

Note: this is a lever set
Changes since this report was submitted:
Movement Setting changed from Pendant to Lever

Anonymous · October 2, 2020

Serial Number B134943 was reported as accurate.

Changes since this report was submitted:
Movement Setting changed from Pendant to Lever

Anonymous · March 24, 2020

Serial Number B134885 was reported as inaccurate.

Note: This serial number movement is a "Lever Set". -
Ted Neima of Clipper Cargo Jewelry & Coin,
Vacaville, CA.
Changes since this report was submitted:
Movement Setting changed from Pendant to Lever

Anonymous · July 28, 2019

Serial Number B134738 was reported as accurate.

Changes since this report was submitted:
Movement Setting changed from Pendant to Lever

ncplumber 150 · December 27, 2017

Serial Number B134750 was reported as accurate.

Changes since this report was submitted:
Movement Setting changed from Pendant to Lever

Anonymous · November 8, 2017

Serial Number B134781 was reported as accurate.

Changes since this report was submitted:
Movement Setting changed from Pendant to Lever

Anonymous · September 16, 2016

Serial Number B134774 was reported as accurate.

Changes since this report was submitted:
Movement Setting changed from Pendant to Lever

Anonymous · January 5, 2016

Serial Number B134608 was reported as inaccurate.

Note: who ever verified this ser. no. was wrong, it is
not pendent set , but is lever set
Changes since this report was submitted:
Movement Setting changed from Pendant to Lever

rock862 242 · October 24, 2015

Serial Number B134608 was reported as accurate.

Changes since this report was submitted:
Movement Setting changed from Pendant to Lever

Anonymous · August 31, 2015

Serial Number B134608 was reported as accurate.

Changes since this report was submitted:
Movement Setting changed from Pendant to Lever

Anonymous · September 14, 2013

Serial Number B134867 was reported as accurate.

Changes since this report was submitted:
Movement Setting changed from Pendant to Lever