Pocket Watch Database

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

Hamilton Watch Co.

Grade: 940

Manufacturer: Hamilton
Manufacturer Location: Lancaster, Pennsylvania
Movement Serial Number: 576588
Grade: 940
Model: 1
Estimated Production Year: 1908
Run Quantity: 1,800
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
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
Case: Various
Database Version: v48.508

Help Us Help Others By Improving the Database:

Does this information describe your movement accurately?

Data Verification Reports

576201
Verification Serial Map
578000

Anonymous · July 24, 2022

Serial Number 577852 was reported as accurate.

Anonymous · May 8, 2022

Serial Number 577024 was reported as accurate.

Anonymous · November 14, 2021

Serial Number 577560 was reported as accurate.

jacastros 3 · February 27, 2021

Serial Number 577716 was reported as accurate.

Anonymous · January 27, 2021

Serial Number 576800 was reported as accurate.

Anonymous · June 29, 2020

Serial Number 577952 was reported as accurate.

Anonymous · June 22, 2020

Serial Number 577952 was reported as accurate.

Anonymous · February 26, 2020

Serial Number 577508 was reported as accurate.

Anonymous · January 12, 2020

Serial Number 576355 was reported as accurate.

Anonymous · November 28, 2019

Serial Number 577878 was reported as accurate.

Anonymous · March 7, 2019

Serial Number 576817 was reported as accurate.

Anonymous · June 5, 2018

Serial Number 577095 was reported as accurate.

Deere51 102 · January 30, 2018

Serial Number 577279 was reported as accurate.

fixmenow 31 · November 22, 2017

Serial Number 576588 was reported as accurate.

Anonymous · July 29, 2017

Serial Number 577852 was reported as accurate.

Anonymous · January 8, 2017

Serial Number 577843 was reported as accurate.

Watching 40 · May 21, 2016

Serial Number 576934 was reported as accurate.

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

Anonymous · March 2, 2016

Serial Number 577804 was reported as accurate.

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

Anonymous · February 17, 2016

Serial Number 577248 was reported as accurate.

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

Anonymous · July 1, 2013

Serial Number 576913 was reported as accurate.

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

Anonymous · October 2, 2012

Serial Number 577539 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

Anonymous · May 26, 2012

Serial Number 576504 was reported as accurate.

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

Anonymous · May 19, 2012

Serial Number 576504 was reported as accurate.

Changes since this report was submitted:
Double Roller changed from No to Yes
Hamilton Grade 940 Pocket Watch
Hamilton Grade 940 Pocket Watch