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: 234464
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: v47.171

Help Us Help Others By Improving the Database:

Does this information describe your movement accurately?

Data Verification Reports

234001
Verification Serial Map
235000

Anonymous · November 20, 2021

Serial Number 234187 was reported as accurate.

Anonymous · November 2, 2021

Serial Number 234187 was reported as accurate.

Anonymous · October 1, 2021

Serial Number 234339 was reported as accurate.

Anonymous · January 14, 2021

Serial Number 234167 was reported as accurate.

Anonymous · January 10, 2021

Serial Number 234871 was reported as accurate.

10mikemikes 25 · November 16, 2020

Serial Number 234443 was reported as accurate.

Anonymous · October 23, 2020

Serial Number 234663 was reported as accurate.

Anonymous · July 17, 2020

Serial Number 234298 was reported as accurate.

Anonymous · July 15, 2020

Serial Number 234573 was reported as accurate.

Anonymous · December 17, 2018

Serial Number 234165 was reported as accurate.

Anonymous · November 14, 2018

Serial Number 234610 was reported as accurate.

Anonymous · September 30, 2018

Serial Number 234621 was reported as accurate.

Anonymous · January 6, 2018

Serial Number 234597 was reported as accurate.

Mobilaero Top Contributor Supporter 257 · June 26, 2016

Serial Number 234464 was reported as accurate.

Anonymous · April 9, 2016

Serial Number 234095 was reported as accurate.

Anonymous · March 1, 2016

Serial Number 234597 was reported as accurate.

Anonymous · December 4, 2015

Serial Number 234883 was reported as accurate.

Anonymous · December 4, 2015

Serial Number 234883 was reported as accurate.

Anonymous · November 30, 2015

Serial Number 234046 was reported as accurate.

Anonymous · August 21, 2014

Serial Number 234707 was reported as accurate.

Anonymous · June 6, 2014

Serial Number 234067 was reported as accurate.

Anonymous · May 19, 2014

Serial Number 234438 was reported as accurate.

Timeswept2 92 · January 20, 2014

Serial Number 234617 was reported as accurate.

rondeg 45 · June 10, 2013

Serial Number 234349 was reported as inaccurate.

Note: movement doesn't show positions,
Changes since this report was submitted:
Plate changed from Unknown to Full

Anonymous · March 20, 2013

Serial Number 234328 was reported as inaccurate.

Note: it is full plate, and it says adjusted. nothing
about 5 positions
Changes since this report was submitted:
Plate changed from Unknown to Full

Anonymous · August 7, 2012

Serial Number 234707 was reported as accurate.

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