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: B202497 Question Mark
Grade: Official Standard Question Mark
Model: 1899 Question Mark
Estimated Production Year: 1904 Question Mark
Run Quantity: 500 Question Mark
Grade/Model Run: 12 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: v52.516 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
Research Note: Corresponds to Waltham Serial run starting with #13,202,001

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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 · September 21, 2021

Serial Number B202070 was reported as accurate.

Anonymous · April 28, 2021

Serial Number B202497 was reported as accurate.

jdpd201 19 · April 17, 2021

Serial Number B202497 was reported as accurate.

Anonymous · January 6, 2020

Serial Number B202091 was reported as accurate.

Anonymous · July 5, 2019

Serial Number B202212 was reported as accurate.

Anonymous · July 5, 2019

Serial Number B202212 was reported as inaccurate.

No further details were submitted with the report.

Anonymous · July 4, 2019

Serial Number B202212 was reported as accurate.

Anonymous · July 4, 2019

Serial Number B202212 was reported as accurate.

barberr1 67 · January 2, 2019

Serial Number B202354 was reported as accurate.

Anonymous · February 22, 2016

Serial Number B202477 was reported as accurate.

Anonymous · August 27, 2015

Serial Number B202100 was reported as accurate.

Anonymous · August 26, 2015

Serial Number B202100 was reported as accurate.

Anonymous · August 19, 2015

Serial Number B202100 was reported as accurate.