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: 266375
Grade: 940
Model: 1
Estimated Production Year: 1903
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: v48.137

Help Us Help Others By Improving the Database:

Does this information describe your movement accurately?

Data Verification Reports

266001
Verification Serial Map
267000

Anonymous · April 25, 2022

Serial Number 266230 was reported as accurate.

Anonymous · March 10, 2022

Serial Number 266517 was reported as accurate.

Anonymous · December 6, 2021

Serial Number 266533 was reported as accurate.

Anonymous · April 25, 2021

Serial Number 266745 was reported as accurate.

Anonymous · January 7, 2021

Serial Number 266405 was reported as accurate.

Anonymous · January 21, 2020

Serial Number 266805 was reported as accurate.

rjmurton1964 34 · September 20, 2019

Serial Number 266375 was reported as accurate.

Anonymous · May 20, 2019

Serial Number 266673 was reported as accurate.

Jacrispy 1 · May 20, 2019

Serial Number 266758 was reported as accurate.

Andrew9000 78 · January 14, 2019

Serial Number 266227 was reported as accurate.

Anonymous · December 20, 2018

Serial Number 266138 was reported as accurate.

Anonymous · November 19, 2018

Serial Number 266400 was reported as accurate.

Anonymous · August 23, 2018

Serial Number 266272 was reported as accurate.

Anonymous · July 31, 2018

Serial Number 266311 was reported as accurate.

Anonymous · May 23, 2018

Serial Number 266400 was reported as accurate.

Anonymous · May 10, 2018

Serial Number 266717 was reported as accurate.

Anonymous · January 18, 2018

Serial Number 266255 was reported as accurate.

Anonymous · March 6, 2017

Serial Number 266539 was reported as accurate.

Anonymous · November 9, 2015

Serial Number 266805 was reported as accurate.

Anonymous · July 7, 2015

Serial Number 266805 was reported as inaccurate.

Note: Movement is private label Thomas Fitzgerald and
there's gold plating or gold wash on screws and
movement parts, so you are right as far as you go,
you just wouldn't have been aware of the rest.

jdoyle53 4 · May 29, 2015

Serial Number 266624 was reported as accurate.

Anonymous · March 1, 2015

Serial Number 266185 was reported as accurate.

Anonymous · October 25, 2014

Serial Number 266715 was reported as accurate.

Anonymous · September 17, 2014

Serial Number 266955 was reported as accurate.

jdoyle53 4 · July 11, 2014

Serial Number 266624 was reported as accurate.

Anonymous · April 22, 2014

Serial Number 266481 was reported as accurate.

Anonymous · May 28, 2013

Serial Number 266375 was reported as accurate.

Anonymous · May 17, 2012

Serial Number 266682 was reported as accurate.

Anonymous · May 16, 2012

Serial Number 266682 was reported as accurate.

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