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: 218372
Grade: 940
Model: 1
Estimated Production Year: 1902
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: v47.470

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Data Verification Reports

218001
Verification Serial Map
219000

luislopez1914 1 · July 22, 2020

Serial Number 218565 was reported as accurate.

Anonymous · July 22, 2020

Serial Number 218565 was reported as accurate.

Anonymous · May 10, 2020

Serial Number 218565 was reported as accurate.

Anonymous · January 30, 2020

Serial Number 218763 was reported as accurate.

Anonymous · January 18, 2020

Serial Number 218800 was reported as accurate.

Anonymous · April 3, 2019

Serial Number 218160 was reported as accurate.

Anonymous · January 17, 2017

Serial Number 218716 was reported as accurate.

Erichsmith 1 · October 2, 2016

Serial Number 218632 was reported as accurate.

03171944 26 · January 1, 2015

Serial Number 218463 was reported as inaccurate.

Note: it is 17 jewels 16 size

Anonymous · July 22, 2014

Serial Number 218939 was reported as accurate.

Anonymous · July 22, 2014

Serial Number 218019 was reported as accurate.

Anonymous · December 8, 2012

Serial Number 218229 was reported as accurate.

Anonymous · December 4, 2012

Serial Number 218602 was reported as accurate.

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