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Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/hamilton/342297
Access Date: October 06, 2022
From the American Horology Archive:
Hamilton Grade 990 Pocket Watch
Hamilton Watch Co.

Grade: 990

Manufacturer: Hamilton
Manufacturer Location: Lancaster, Pennsylvania
Movement Serial Number: 342297
Grade: 990
Model: 1
Estimated Production Year: 1906
Run Quantity: 300
Total Production: 12,599
Size: 16s
Jewels: 21j
Jewel Material: Ruby & Sapphire
Jewel Setting: Gold Settings (Screw-Set)
Movement Configuration: Openface
Movement Finish: Nickel
Movement Setting: Lever
Plate: 3/4 Plate
Regulator: Reed
Hairspring: Breguet
Pallet Jewel Material: Sapphire
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: 7.6, 21.8, 38.0, 50.5
Hamilton 16s Dial Feet Research
Data Research: 1953 Hamilton Serial List
Case: Various
Database Version: v48.508
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Data Verification Reports

342001
Verification Serial Map
342300

Anonymous · August 3, 2022

Serial Number 342049 was reported as accurate.

Anonymous · June 11, 2022

Serial Number 342147 was reported as accurate.

Anonymous · August 24, 2021

Serial Number 342210 was reported as accurate.

Anonymous · February 17, 2021

Serial Number 342237 was reported as accurate.

Anonymous · October 26, 2019

Serial Number 342261 was reported as accurate.

MichaelB 150 · April 30, 2017

Serial Number 342299 was reported as accurate.

Anonymous · July 19, 2014

Serial Number 342297 was reported as accurate.

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

Anonymous · February 28, 2014

Serial Number 342070 was reported as accurate.

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

Anonymous · May 1, 2013

Serial Number 342108 was reported as inaccurate.

No further details were submitted with the report.
Changes since this report was submitted:
Plate changed from Unknown to 3/4
Hamilton Grade 990 Pocket Watch
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