Pocket Watch Database

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

Ball - Hamilton

Grade: 999A

Manufacturer: Ball - Hamilton
Movement Serial Number: 208607
Grade: 999A
Model: 1
Estimated Production Year: 1902
Run Quantity: 500
Grade/Model Run: 12 of 25
Grade/Model Total Production: 14,000
Size: 18s
Jewels: 21j
Movement Configuration: Openface
Movement Finish: Nickel
Finish Pattern: Sunburst
Movement Setting: Lever
Plate: Full Plate
Double Roller: Yes
Regulator: Ball
Adjusted: Yes
Adjusted # of Positions: 5
Adjusted to Temperature: Yes
Railroad Grade: Yes
U.S. Patents: D25695, 565955
Movement Markings: Official RR Standard
The Ball Watch Co. Cleveland.
Adjusted
21 Jewels
Sapphire Pallets
Safety Pinion
Trade Mark
Patented June 30'96
Pat.Aug.18'96.
Case: Various
Database Version: v52.334
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
42.15
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
318.43
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
12.136%
Registry Population: 4 (0.80%)
Research Note: 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 · June 11, 2023

Serial Number 208588 was reported as accurate.

Anonymous · June 9, 2023

Serial Number 208588 was reported as accurate.

avpalermo Supporter 578 · January 21, 2023

Serial Number 208683 was reported as accurate.

Anonymous · January 3, 2023

Serial Number 208607 was reported as accurate.

Anonymous · November 4, 2022

Serial Number 208597 was reported as accurate.

Anonymous · June 20, 2021

Serial Number 208693 was reported as accurate.

Anonymous · May 21, 2020

Serial Number 208821 was reported as accurate.

Anonymous · April 24, 2020

Serial Number 208821 was reported as accurate.

Anonymous · April 24, 2020

Serial Number 208821 was reported as accurate.

Anonymous · April 7, 2020

Serial Number 208821 was reported as accurate.

Anonymous · April 7, 2020

Serial Number 208821 was reported as accurate.

Anonymous · February 23, 2020

Serial Number 208821 was reported as accurate.

Anonymous · April 5, 2019

Serial Number 208671 was reported as accurate.

Anonymous · April 25, 2018

Serial Number 208655 was reported as accurate.

dfchong 837 · March 10, 2018

Serial Number 208472 was reported as accurate.

Anonymous · November 15, 2017

Serial Number 208462 was reported as accurate.

Anonymous · August 18, 2017

Serial Number 208685 was reported as accurate.

Anonymous · August 11, 2017

Serial Number 208895 was reported as accurate.

Anonymous · August 7, 2017

Serial Number 208794 was reported as accurate.

Pounder83 20 · April 26, 2017

Serial Number 208542 was reported as accurate.

Anonymous · July 1, 2016

Serial Number 208827 was reported as accurate.

Richantiques 10 · July 14, 2014

Serial Number 208424 was reported as accurate.

Anonymous · February 1, 2014

Serial Number 208420 was reported as accurate.

ipraetorian 29 · November 19, 2013

Serial Number 208597 was reported as accurate.

Ball - Hamilton Grade 999A Pocket Watch