Pocket Watch Database

From the American Horology Archive:

Ball - Hamilton

Grade: 999G

Manufacturer: Ball - Hamilton Question Mark
Movement Serial Number: 503831 Question Mark
Grade: 999G Question Mark
Model: 1A 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: 19j 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
Regulator: Login to View 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
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Registry Population:
Scoped for This Run Only
4 (0.40%) Question Mark
12 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, Regulator Type, 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 · March 11, 2025

Serial Number 503431 was reported as accurate.

Anonymous · March 1, 2024

Serial Number 503831 was reported as accurate.

Blicquer Supporter 91 · July 13, 2022

Serial Number 503601 was reported as accurate.

Anonymous · August 1, 2021

Serial Number 503914 was reported as accurate.

Anonymous · May 30, 2021

Serial Number 503583 was reported as accurate.

Anonymous · May 26, 2021

Serial Number 503104 was reported as accurate.

Anonymous · September 4, 2020

Serial Number 503915 was reported as accurate.

Anonymous · January 10, 2020

Serial Number 503848 was reported as accurate.

orotreasures 13 · August 29, 2019

Serial Number 503088 was reported as accurate.

GrizzlyGrant88 6 · April 3, 2019

Serial Number 503802 was reported as accurate.

GrizzlyGrant88 6 · April 3, 2019

Serial Number 503802 was reported as accurate.

Anonymous · January 14, 2019

Serial Number 503637 was reported as accurate.

Anonymous · November 24, 2018

Serial Number 503325 was reported as accurate.

Anonymous · October 23, 2018

Serial Number 503802 was reported as accurate.

Anonymous · April 7, 2018

Serial Number 503854 was reported as accurate.

Anonymous · March 7, 2018

Serial Number 503854 was reported as accurate.

Anonymous · March 24, 2017

Serial Number 503119 was reported as accurate.

Anonymous · January 6, 2017

Serial Number 503077 was reported as accurate.

Anonymous · September 24, 2016

Serial Number 503708 was reported as accurate.

rock862 242 · February 27, 2016

Serial Number 503385 was reported as accurate.

Anonymous · November 7, 2015

Serial Number 503015 was reported as accurate.

mkonkol 7 · October 15, 2015

Serial Number 503105 was reported as accurate.

Anonymous · February 2, 2015

Serial Number 503840 was reported as accurate.

Anonymous · November 5, 2014

Serial Number 503119 was reported as accurate.

Anonymous · August 22, 2014

Serial Number 503390 was reported as accurate.

Anonymous · June 30, 2014

Serial Number 503917 was reported as accurate.

mrabin 1 · August 26, 2013

Serial Number 503074 was reported as accurate.