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: B257585 Question Mark
Grade: Official Standard Question Mark
Model: 1899 Question Mark
Estimated Production Year: 1915 Question Mark
Run Quantity: 500 Question Mark
Grade/Model Total Production: 71,861 Question Mark
Size: 16s Question Mark
Jewels: 21j 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: D26267, D32330 Question Mark
Movement Markings: Official RR Standard
Ball Watch Co.
Cleveland, O.
21 Jewels
Adjusted
5 Positions
Sapphire Pallets
Trade Mark
Pat.Nov.17.96
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
Registry Population:
Scoped for This Run Only
5 (1.00%) Question Mark
Research Note: #B257523: 21j; Corresponds to Waltham Serial run starting with #20,257,501

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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.


Slederman Supporter 4 · June 17, 2024

Serial Number B257654 was reported as accurate.

ultimatekaiser 48 · December 29, 2023

Serial Number B257585 was reported as accurate.

rfarver 9 · October 19, 2020

Serial Number B257523 was reported as accurate.

Anonymous · April 12, 2020

Serial Number B257555 was reported as accurate.

Anonymous · August 31, 2019

Serial Number B257604 was reported as accurate.

Anonymous · February 23, 2019

Serial Number B257891 was reported as accurate.

Anonymous · November 29, 2018

Serial Number B257788 was reported as accurate.

Anonymous · October 31, 2017

Serial Number B257581 was reported as accurate.

Anonymous · May 25, 2017

Serial Number B257991 was reported as accurate.

Anonymous · March 11, 2016

Serial Number B257618 was reported as accurate.

Anonymous · August 28, 2015

Serial Number B257927 was reported as accurate.

rfregoso 55 · June 30, 2015

Serial Number B257910 was reported as accurate.

Anonymous · April 26, 2015

Serial Number B257565 was reported as accurate.

Anonymous · December 26, 2014

Serial Number B257941 was reported as accurate.

jmfixley 1 · July 26, 2014

Serial Number B257999 was reported as inaccurate.

No further details were submitted with the report.
Changes since this report was submitted:
Plate changed from Unknown to 3/4

Anonymous · July 22, 2014

Serial Number B257886 was reported as accurate.

Anonymous · July 18, 2014

Serial Number B257999 was reported as accurate.

pookie 11 · November 30, 2013

Serial Number B257751 was reported as inaccurate.

No further details were submitted with the report.
Changes since this report was submitted:
Plate changed from Unknown to 3/4

Anonymous · October 9, 2013

Serial Number B257890 was reported as accurate.