Pocket Watch Database

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

Ball - Hamilton

Grade: 999H

Manufacturer: Ball - Hamilton
Movement Serial Number: 560660
Grade: 999H
Model: 1
Estimated Production Year: 1908
Run Quantity: 1,000
Grade/Model Run: 7 of 12
Grade/Model Total Production: 8,100
Size: 18s
Jewels: 17j
Movement Configuration: Openface
Movement Finish: Nickel
Finish Pattern: Cicular
Movement Setting: Lever
Plate: Full Plate
Double Roller: Yes
Adjusted: Yes
Adjusted # of Positions: 5
Adjusted to Temperature: Yes
Railroad Grade: Yes
U.S. Patents: D25695, 565955
Movement Markings: Official RR Standard
999
The Ball Watch Co. Cleveland.
Adjusted 5 Positions
Double Roller.
17 Jewels
Sapphire Pallets
Safety Pinion
Trade Mark
Patented June 30'96
Pat.Aug.18'96.
Case: Various
Database Version: v52.219
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
24.25
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
184.19
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
7.021%
Registry Population: 3 (0.30%)
Research Note: Hamilton Hairspring Stud

Help Us Help Others By Improving the Database:

Does this information describe your movement accurately?

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 5, 2022

Serial Number 560614 was reported as accurate.

bob4watch 7 · February 16, 2022

Serial Number 560660 was reported as accurate.

bob4watch 7 · February 16, 2022

Serial Number 560660 was reported as accurate.

Anonymous · July 11, 2021

Serial Number 560714 was reported as accurate.

Automatic 254 · May 11, 2021

Serial Number 560203 was reported as accurate.

rjmurton1964 34 · January 26, 2021

Serial Number 560051 was reported as accurate.

Anonymous · March 13, 2020

Serial Number 560440 was reported as accurate.

Anonymous · January 31, 2020

Serial Number 560933 was reported as accurate.

Anonymous · October 28, 2019

Serial Number 560058 was reported as accurate.

Anonymous · August 18, 2019

Serial Number 560660 was reported as accurate.

sanderson 35 · April 12, 2019

Serial Number 560820 was reported as accurate.

Anonymous · November 4, 2018

Serial Number 560933 was reported as accurate.

Anonymous · October 30, 2018

Serial Number 560933 was reported as accurate.

Anonymous · August 28, 2018

Serial Number 560731 was reported as accurate.

Anonymous · January 10, 2018

Serial Number 560040 was reported as accurate.

Anonymous · August 16, 2015

Serial Number 560303 was reported as accurate.

Anonymous · February 28, 2015

Serial Number 560119 was reported as accurate.

Anonymous · January 16, 2015

Serial Number 560110 was reported as accurate.

Anonymous · December 31, 2014

Serial Number 560110 was reported as accurate.

Anonymous · November 14, 2014

Serial Number 560087 was reported as accurate.

Anonymous · September 22, 2014

Serial Number 560058 was reported as accurate.

Anonymous · March 10, 2014

Serial Number 560660 was reported as accurate.

Anonymous · March 1, 2014

Serial Number 560855 was reported as accurate.

Anonymous · August 21, 2013

Serial Number 560884 was reported as accurate.

Ball - Hamilton Grade 999H Pocket Watch