Pocket Watch Database


We noticed that you entered a relatively short serial number.
"5278" could possibly indicate the grade of the watch and not the serial number of your movement. Serial numbers are usually more than a few digits.
From the American Horology Archive:
Hamilton Grade 926 Pocket Watch

Hamilton Watch Co.

Grade: 926

Manufacturer: Hamilton Question Mark
Manufacturer Location: Lancaster, Pennsylvania Question Mark
Movement Serial Number: 5278 Question Mark
Grade: 926 Question Mark
Model: 1 Question Mark
Class: 3 Question Mark
Estimated Production Year: Login to View Question Mark
Run Quantity: Login to View Question Mark
Grade/Model Run: Login to View Question Mark
Grade/Model Total Production: Login to View Question Mark
Size: 18s Question Mark
Jewels: 17j Question Mark
Jewel Setting: Login to View Question Mark
Movement Configuration: Openface Question Mark
Movement Finish: Nickel Question Mark
Movement Setting: Lever Question Mark
Plate: Full Plate Question Mark
Regulator: Login to View Question Mark
Hairspring: Login to View Question Mark
Standard Dial Type: Login to View Question Mark
Adjusted: Login to View Question Mark
Adjusted to Position: Login to View Question Mark
Adjusted to Temperature: Login to View Question Mark
Adjusted to Isochronism: Login to View Question Mark
Railroad Grade: Login to View Question Mark
Dial Feet Locations: Login to View Question Mark
Case: Various Question Mark
Run ID: 21.926G1.18S21.181M9.O9.L21.17J11 Question Mark
Data Research: 1953 Hamilton Serial List
Question Mark
Database Version: v52.645 Question Mark
Advanced Metrics
Members Only Data. Login or create a free account to unlock.
Registry Population:
Scoped for This Run Only
1 (0.33%) Question Mark
$ Estimated Value (12 Month Change): -7.26% Analyzing 684 Sales Question Mark
14 Additional Member-Only Data Points Available

The following information is unlocked with a free account:

Estimated Production Year, Run Quantity, Grade/Model Run, Grade/Model Total Production, Jewel Setting, Regulator Type, Hairspring, Standard Dial Type, Adjustments, Adjusted to Position, Temperature Adjustments, Isochronism Adjustments, Railroad Grade Designation, Dial Feet Locations

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Verification Reports for this Run

The following reports have been graciously submitted by dedicated members in reference to this production run. These reports are useful to verify data and track inaccuracies that require further research. Please note that reports may contain inaccurate information or assumptions that must be dilligently considered with other available sources.


2mnyboxers Supporter 410 · September 30, 2023

Serial Number 5153 was reported as accurate.

Anonymous · March 22, 2021

Serial Number 5222 was reported as accurate.

tturner770 18 · August 18, 2020

Serial Number 5278 was reported as accurate.

Anonymous · February 5, 2018

Serial Number 5313 was reported as accurate.

Gimparoo Supporter 703 · February 11, 2017

Serial Number 5388 was reported as accurate.

Anonymous · September 12, 2014

Serial Number 5345 was reported as accurate.

Anonymous · October 29, 2012

Serial Number 5184 was reported as inaccurate.

Note: mine shows 21j
Changes since this report was submitted:
Plate changed from Unknown to Full
Hamilton Grade 926 Pocket Watch