Pocket Watch Database

From the American Horology Archive:
Hamilton Grade 940 Pocket Watch Movement
Hamilton Grade 940 Pocket Watch Movement

Hamilton Watch Co.

Grade: 940

Manufacturer: Hamilton
Manufacturer Location: Lancaster, Pennsylvania
Movement Serial Number: 158467
Grade: 940
Model: 1
Estimated Production Year: 1901
Run Quantity: 1,000
Total Production: 210,596
Size: 18s
Jewels: 21j
Jewel Material: Ruby
Jewel Setting: Screw-Set
Movement Configuration: Openface
Movement Finish: Nickel
Finish Pattern: Damaskeened
Movement Inlay Color: Gilt
Movement Setting: Lever
Plate: Full Plate
Barrel: Going
Regulator: Goldthwait
Hairspring: Breguet
Standard Dial Type: Double-Sunk
Adjusted: Yes
Adjusted to Position: Yes
Adjusted # of Positions: 5
Adjusted to Temperature: Yes
Adjusted to Isochronism: Yes
Railroad Grade: Yes
Railroad Grade Classification: Class A
Dial Feet Locations: 2.6, 18.0, 38.2
U.S. Patents: 832672, 427072
Data Research: 1953 Hamilton Serial List
Database Version: v46.975

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Data Verification Reports

158001
Verification Serial Map
159000

Anonymous · March 18, 2021

Serial Number 158048 was reported as accurate.

Anonymous · March 9, 2021

Serial Number 158048 was reported as accurate.

Anonymous · February 20, 2020

Serial Number 158320 was reported as accurate.

Anonymous · November 13, 2019

Serial Number 158035 was reported as accurate.

Gimparoo Supporter 699 · March 18, 2018

Serial Number 158589 was reported as accurate.

Anonymous · October 5, 2016

Serial Number 158761 was reported as accurate.

Anonymous · August 11, 2016

Serial Number 158467 was reported as accurate.

daddo46 966 · March 4, 2016

Serial Number 158675 was reported as accurate.

Groovysalsa 109 · April 7, 2015

Serial Number 158631 was reported as accurate.

Anonymous · February 26, 2015

Serial Number 158631 was reported as accurate.

Anonymous · February 8, 2015

Serial Number 158678 was reported as accurate.

Anonymous · June 5, 2014

Serial Number 158993 was reported as accurate.

Anonymous · May 11, 2014

Serial Number 158556 was reported as accurate.

Anonymous · May 10, 2014

Serial Number 158555 was reported as accurate.

Anonymous · April 28, 2014

Serial Number 158526 was reported as accurate.

Anonymous · October 16, 2013

Serial Number 158281 was reported as accurate.

Anonymous · June 7, 2012

Serial Number 158548 was reported as accurate.

Hamilton Grade 940 Pocket Watch Movement
Hamilton Grade 940 Pocket Watch Movement