Pocket Watch Database

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

Ball - Hamilton

Grade: 999E

Manufactured by Hamilton

Manufacturer: Ball - Hamilton
Movement Serial Number: 170107
Grade: 999E
Model: 1
Estimated Production Year: 1902
Size: 18s
Jewels: 17j
Jewel Material: Ruby
Jewel Setting: Gold Settings (Screw-Set)
Movement Configuration: Openface
Movement Finish: Nickel
Finish Pattern: Circular Damascening Pattern
Movement Setting: Lever
Plate: Full Plate
Regulator: Ball
Pallet Jewel Material: Sapphire
Adjusted: Yes
Railroad Grade: Yes
Movement Markings: Ball’s Standard, Railroad Watch Co.
Research Note: #170354: Verified as 999E Type 3

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Data Verification Reports

texnet 563 · March 24, 2020

Serial Number 170009 was reported as accurate.

Andrew9000 74 · January 23, 2020

Serial Number 170009 was reported as accurate.

singing3 31 · October 21, 2019

Serial Number 170094 was reported as accurate.

cjbrem 53 · March 26, 2019

Serial Number 170107 was reported as inaccurate.

Note: My #170107 is a Single Roller marked "Ball Watch
Co."

Anonymous · March 17, 2019

Serial Number 170107 was reported as accurate.

Anonymous · March 5, 2019

Serial Number 170354 was reported as accurate.

Anonymous · October 19, 2018

Serial Number 170354 was reported as inaccurate.

Note: Mine is a type 3 999E. Marked
Adjusted
Single roller
Ball& co. Cleveland.
Changes since this report was submitted:
Grade changed from 999b to 999e
Plate changed from 3/4 to Full

Anonymous · December 29, 2015

Serial Number 170301 was reported as accurate.

Changes since this report was submitted:
Grade changed from 999b to 999e
Plate changed from 3/4 to Full

TimeAntiquarian 156 · June 20, 2014

Serial Number 170033 was reported as accurate.

Changes since this report was submitted:
Grade changed from 999b to 999e
Plate changed from 3/4 to Full
Ball - Hamilton Grade 999E Pocket Watch Movement