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: 540170
Grade: 940
Model: 1
Estimated Production Year: 1907
Run Quantity: 5,000
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
Double Roller: Yes
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
Dial Feet Locations: 2.6, 18.0, 38.2
U.S. Patents: 832672, 427072
Data Research: 1953 Hamilton Serial List

Help Us Help Others By Improving the Database:

Does this information describe your movement accurately?

Data Verification Reports

538001
Verification Serial Map
543000

Anonymous · November 17, 2020

Serial Number 539599 was reported as accurate.

Anonymous · October 24, 2020

Serial Number 540274 was reported as accurate.

Anonymous · October 18, 2020

Serial Number 542870 was reported as accurate.

Anonymous · October 7, 2020

Serial Number 541786 was reported as accurate.

netmind 37 · July 5, 2020

Serial Number 540170 was reported as accurate.

Anonymous · April 23, 2020

Serial Number 540896 was reported as accurate.

Anonymous · February 18, 2020

Serial Number 538258 was reported as accurate.

Anonymous · October 1, 2019

Serial Number 541161 was reported as accurate.

gordo55 1 · September 27, 2019

Serial Number 541941 was reported as accurate.

Anonymous · July 29, 2019

Serial Number 539030 was reported as inaccurate.

Note: 539030 is a marked 946 23J Hamilton retailed by A.
N. Anderson of Minneapolis

Anonymous · May 19, 2019

Serial Number 540381 was reported as accurate.

Anonymous · April 27, 2019

Serial Number 538714 was reported as accurate.

Anonymous · April 16, 2019

Serial Number 542639 was reported as accurate.

Anonymous · April 9, 2019

Serial Number 542639 was reported as accurate.

Anonymous · March 29, 2019

Serial Number 538714 was reported as accurate.

Anonymous · February 16, 2019

Serial Number 539626 was reported as accurate.

Anonymous · January 7, 2019

Serial Number 540521 was reported as accurate.

WLBelkriver33 804 · December 8, 2018

Serial Number 540635 was reported as accurate.

Anonymous · July 18, 2018

Serial Number 539373 was reported as accurate.

Se7400 2 · April 25, 2018

Serial Number 542078 was reported as accurate.

Anonymous · April 14, 2018

Serial Number 540985 was reported as accurate.

Anonymous · April 2, 2018

Serial Number 538256 was reported as accurate.

Anonymous · March 2, 2018

Serial Number 540923 was reported as accurate.

Anonymous · December 17, 2017

Serial Number 542163 was reported as accurate.

Anonymous · December 2, 2017

Serial Number 539468 was reported as accurate.

Anonymous · November 29, 2017

Serial Number 539468 was reported as accurate.

Anonymous · September 2, 2017

Serial Number 539251 was reported as accurate.

Anonymous · June 30, 2017

Serial Number 540241 was reported as accurate.

Dogless 2 · April 19, 2017

Serial Number 538191 was reported as accurate.

Anonymous · April 14, 2017

Serial Number 539958 was reported as accurate.

Anonymous · February 14, 2017

Serial Number 539165 was reported as accurate.

richardot82749 3 · February 4, 2017

Serial Number 542989 was reported as accurate.

Anonymous · January 9, 2017

Serial Number 542365 was reported as accurate.

Anonymous · January 8, 2017

Serial Number 542879 was reported as accurate.

Anonymous · January 6, 2017

Serial Number 539516 was reported as accurate.

Anonymous · December 4, 2016

Serial Number 539151 was reported as accurate.

Anonymous · October 16, 2016

Serial Number 542970 was reported as accurate.

Gimparoo 694 · August 23, 2016

Serial Number 542347 was reported as accurate.

Changes since this report was submitted:
Double Roller changed from No to Yes

pwdmbj 369 · July 11, 2016

Serial Number 542657 was reported as accurate.

Changes since this report was submitted:
Double Roller changed from No to Yes

Anonymous · January 10, 2016

Serial Number 541426 was reported as accurate.

Changes since this report was submitted:
Double Roller changed from No to Yes

Anonymous · December 11, 2015

Serial Number 538360 was reported as accurate.

Changes since this report was submitted:
Double Roller changed from No to Yes

Anonymous · November 25, 2015

Serial Number 539165 was reported as accurate.

Changes since this report was submitted:
Double Roller changed from No to Yes

Anonymous · November 3, 2015

Serial Number 538707 was reported as accurate.

Changes since this report was submitted:
Double Roller changed from No to Yes

Anonymous · October 31, 2015

Serial Number 541603 was reported as accurate.

Changes since this report was submitted:
Double Roller changed from No to Yes

Anonymous · March 20, 2015

Serial Number 539612 was reported as accurate.

Changes since this report was submitted:
Double Roller changed from No to Yes

Anonymous · February 26, 2015

Serial Number 541391 was reported as accurate.

Changes since this report was submitted:
Double Roller changed from No to Yes

Anonymous · February 26, 2015

Serial Number 538697 was reported as accurate.

Changes since this report was submitted:
Double Roller changed from No to Yes

Anonymous · February 26, 2015

Serial Number 538697 was reported as accurate.

Changes since this report was submitted:
Double Roller changed from No to Yes

Gasperoff 726 · February 10, 2015

Serial Number 540302 was reported as accurate.

Changes since this report was submitted:
Double Roller changed from No to Yes

Anonymous · January 16, 2015

Serial Number 541512 was reported as accurate.

Changes since this report was submitted:
Double Roller changed from No to Yes

Anonymous · November 26, 2014

Serial Number 541391 was reported as accurate.

Changes since this report was submitted:
Double Roller changed from No to Yes

Anonymous · November 19, 2014

Serial Number 542548 was reported as accurate.

Changes since this report was submitted:
Double Roller changed from No to Yes

Anonymous · November 16, 2014

Serial Number 539532 was reported as accurate.

Changes since this report was submitted:
Double Roller changed from No to Yes

Anonymous · August 26, 2014

Serial Number 540081 was reported as accurate.

Changes since this report was submitted:
Double Roller changed from No to Yes

Anonymous · August 18, 2014

Serial Number 539532 was reported as accurate.

Changes since this report was submitted:
Double Roller changed from No to Yes

Anonymous · August 13, 2014

Serial Number 540587 was reported as accurate.

Changes since this report was submitted:
Double Roller changed from No to Yes

Anonymous · July 5, 2014

Serial Number 542885 was reported as accurate.

Changes since this report was submitted:
Double Roller changed from No to Yes

Anonymous · June 16, 2014

Serial Number 541391 was reported as accurate.

Changes since this report was submitted:
Double Roller changed from No to Yes

Anonymous · February 12, 2014

Serial Number 541824 was reported as accurate.

Changes since this report was submitted:
Double Roller changed from No to Yes

timetwister 4 · February 3, 2014

Serial Number 540096 was reported as accurate.

Changes since this report was submitted:
Double Roller changed from No to Yes

Anonymous · February 3, 2014

Serial Number 540096 was reported as accurate.

Changes since this report was submitted:
Double Roller changed from No to Yes

divalicioussg 1 · October 18, 2013

Serial Number 539824 was reported as accurate.

Changes since this report was submitted:
Double Roller changed from No to Yes

Anonymous · July 4, 2013

Serial Number 538500 was reported as accurate.

Changes since this report was submitted:
Double Roller changed from No to Yes

Anonymous · May 26, 2013

Serial Number 541622 was reported as accurate.

Changes since this report was submitted:
Double Roller changed from No to Yes

Anonymous · May 26, 2013

Serial Number 541906 was reported as accurate.

Changes since this report was submitted:
Double Roller changed from No to Yes

Anonymous · February 2, 2013

Serial Number 538228 was reported as accurate.

Changes since this report was submitted:
Double Roller changed from No to Yes

Anonymous · October 26, 2012

Serial Number 539867 was reported as accurate.

Changes since this report was submitted:
Double Roller changed from No to Yes

Anonymous · October 23, 2012

Serial Number 539771 was reported as accurate.

Changes since this report was submitted:
Double Roller changed from No to Yes

Anonymous · October 15, 2012

Serial Number 538778 was reported as inaccurate.

No further details were submitted with the report.
Changes since this report was submitted:
Double Roller changed from No to Yes
Plate changed from Unknown to Full
Hamilton Grade 940 Pocket Watch Movement
Hamilton Grade 940 Pocket Watch Movement