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: 288154
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: v47.470

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Data Verification Reports

288001
Verification Serial Map
289000

Anonymous · December 15, 2021

Serial Number 288841 was reported as accurate.

Fifty50 Supporter 281 · June 22, 2020

Serial Number 288705 was reported as accurate.

Anonymous · April 29, 2020

Serial Number 288597 was reported as accurate.

Anonymous · January 28, 2020

Serial Number 288342 was reported as accurate.

Anonymous · July 11, 2019

Serial Number 288680 was reported as accurate.

Mowerman666 13 · July 2, 2019

Serial Number 288483 was reported as accurate.

Anonymous · November 19, 2018

Serial Number 288339 was reported as accurate.

Anonymous · August 19, 2017

Serial Number 288247 was reported as accurate.

Anonymous · February 3, 2017

Serial Number 288154 was reported as accurate.

Anonymous · January 10, 2017

Serial Number 288062 was reported as accurate.

Anonymous · March 4, 2016

Serial Number 288154 was reported as accurate.

Anonymous · December 14, 2015

Serial Number 288154 was reported as accurate.

Jwalter 8 · May 6, 2015

Serial Number 288776 was reported as accurate.

Anonymous · March 6, 2015

Serial Number 288142 was reported as accurate.

Anonymous · November 2, 2012

Serial Number 288776 was reported as accurate.

Anonymous · July 14, 2012

Serial Number 288787 was reported as accurate.

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