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

Special

Manufacturer: Hamilton
Manufacturer Location: Lancaster, Pennsylvania
Movement Serial Number: 504634
Grade: 940
Model: 1
To Finishing Dept: Jan 27, 1906
Run Quantity: 3,000
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
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

504001
Verification Serial Map
507000

Anonymous · July 28, 2020

Serial Number 504474 was reported as accurate.

Anonymous · April 2, 2020

Serial Number 506777 was reported as accurate.

Anonymous · April 1, 2020

Serial Number 505669 was reported as accurate.

Mobilaero 227 · March 10, 2020

Serial Number 506605 was reported as accurate.

Mobilaero 227 · March 9, 2020

Serial Number 506605 was reported as inaccurate.

Note: Lowell Halligan's notes on 18s Hamiltons mentions
gold setting for 940s were not introduced until
1911 with # 692801.
Curator Response: Absolutely correct. The database has been updated accordingly.

Anonymous · February 27, 2020

Serial Number 505669 was reported as accurate.

Anonymous · February 13, 2020

Serial Number 505379 was reported as accurate.

Anonymous · January 21, 2020

Serial Number 506401 was reported as accurate.

Anonymous · October 30, 2019

Serial Number 504503 was reported as accurate.

Anonymous · October 30, 2019

Serial Number 504503 was reported as accurate.

Anonymous · April 7, 2019

Serial Number 504948 was reported as accurate.

Anonymous · January 17, 2019

Serial Number 505263 was reported as accurate.

Anonymous · November 2, 2018

Serial Number 506085 was reported as accurate.

Anonymous · July 28, 2018

Serial Number 505763 was reported as accurate.

Anonymous · July 28, 2018

Serial Number 505763 was reported as accurate.

Anonymous · June 27, 2018

Serial Number 505763 was reported as accurate.

Waltham21j 117 · June 24, 2018

Serial Number 504157 was reported as accurate.

Anonymous · June 20, 2018

Serial Number 505763 was reported as accurate.

rplatt 1 · January 31, 2018

Serial Number 506976 was reported as accurate.

fixmenow 31 · November 22, 2017

Serial Number 505178 was reported as accurate.

Anonymous · November 5, 2017

Serial Number 506758 was reported as accurate.

Anonymous · July 20, 2017

Serial Number 505662 was reported as inaccurate.

No further details were submitted with the report.

hammyhamilton 44 · February 1, 2017

Serial Number 506732 was reported as accurate.

Anonymous · December 22, 2016

Serial Number 506608 was reported as accurate.

ccnumis 145 · December 19, 2016

Serial Number 505982 was reported as accurate.

ccnumis 145 · August 18, 2016

Serial Number 505982 was reported as accurate.

Anonymous · July 1, 2016

Serial Number 506401 was reported as inaccurate.

Note: Movement marked SPECIAL.

Anonymous · May 19, 2016

Serial Number 504737 was reported as accurate.

Anonymous · April 20, 2016

Serial Number 504866 was reported as accurate.

Gimparoo 694 · April 8, 2016

Serial Number 504221 was reported as accurate.

Anonymous · April 3, 2016

Serial Number 504866 was reported as accurate.

Anonymous · March 9, 2016

Serial Number 504893 was reported as accurate.

laprof 3 · February 13, 2016

Serial Number 506969 was reported as accurate.

Anonymous · October 25, 2015

Serial Number 504803 was reported as accurate.

Anonymous · September 25, 2015

Serial Number 505783 was reported as accurate.

Anonymous · June 11, 2015

Serial Number 506401 was reported as inaccurate.

Note: Your information is accurate as far as it goes but
the Notes section might wish to add that there are
gold movement screws and that the movement is
marked SPECIAL in gilt lettering.

Anonymous · March 18, 2015

Serial Number 504893 was reported as accurate.

Anonymous · December 31, 2014

Serial Number 504656 was reported as accurate.

Anonymous · May 30, 2014

Serial Number 504474 was reported as accurate.

Anonymous · January 26, 2014

Serial Number 505914 was reported as accurate.

Anonymous · January 26, 2014

Serial Number 505914 was reported as accurate.

Anonymous · November 30, 2013

Serial Number 506732 was reported as accurate.

Anonymous · November 30, 2013

Serial Number 506732 was reported as accurate.

Anonymous · November 28, 2013

Serial Number 506170 was reported as accurate.

Anonymous · November 1, 2013

Serial Number 505192 was reported as accurate.

Anonymous · November 1, 2013

Serial Number 505142 was reported as accurate.

69abody 166 · October 25, 2013

Serial Number 505142 was reported as accurate.

Anonymous · October 25, 2013

Serial Number 0505951 was reported as accurate.

Waltham21j 117 · September 16, 2013

Serial Number 504157 was reported as accurate.

Waltham21j 117 · September 16, 2013

Serial Number 504157 was reported as accurate.

Anonymous · August 20, 2013

Serial Number 504157 was reported as accurate.

Anonymous · April 21, 2013

Serial Number 505142 was reported as accurate.

Anonymous · February 10, 2013

Serial Number 506183 was reported as accurate.

Anonymous · November 17, 2012

Serial Number 504893 was reported as accurate.

Anonymous · June 27, 2012

Serial Number 504966 was reported as accurate.

Anonymous · May 13, 2012

Serial Number 504771 was reported as accurate.

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