Pocket Watch Database


We noticed that you entered a relatively short serial number.
"9311" 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 939 Pocket Watch

Hamilton Watch Co.

Grade: 939

Private Label(s) in Run:

Howes Bros. - Clinton, Iowa

What is a Private Label?
Manufacturer: Hamilton Question Mark
Manufacturer Location: Lancaster, Pennsylvania Question Mark
Movement Serial Number: 9311 Question Mark
Grade: 939 Question Mark
Model: 2 Question Mark
Class: 1 Question Mark
Estimated Production Year: 1895 Question Mark
Run Quantity: 300 Question Mark
Grade/Model Run: 3 of 7 Question Mark
Grade/Model Total Production: 1,310 Question Mark
Size: 18s Question Mark
Jewels: 17j Question Mark
Jewel Material: Ruby & Sapphire Question Mark
Jewel Setting: Gold Settings (Screw-Set) Question Mark
Movement Configuration: Hunting Question Mark
Movement Finish: Nickel Question Mark
Movement Inlay Color: Gilt Question Mark
Movement Setting: Lever Question Mark
Plate: Full Plate Question Mark
Regulator: Goldthwait Question Mark
Hairspring: Breguet Question Mark
Pallet Jewel Material: Sapphire Question Mark
Standard Dial Type: Double-Sunk Question Mark
Adjusted: Yes Question Mark
Adjusted to Position: Yes Question Mark
Adjusted # of Positions: 5 Question Mark
Adjusted to Temperature: Yes Question Mark
Adjusted to Isochronism: Yes Question Mark
Railroad Grade: Yes Question Mark
Railroad Grade Classification: Class C Question Mark
Dial Feet Locations: 2.6, 18.0, 38.2 Question Mark
Case: Various Question Mark
Run ID: 37.939G3.18S37.182M19.H19.L37.17J24 Question Mark
Data Research: 1953 Hamilton Serial List
Question Mark
Database Version: v52.450 Question Mark
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
3.94 Question Mark
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
1.73 Question Mark
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
0.012% Question Mark
Registry Population:
Scoped for This Run Only
3 (1.00%) Question Mark

Help Us Help Others By Improving the Database:

Does this information describe your movement accurately?

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.


Anonymous · May 13, 2020

Serial Number 9529 was reported as accurate.

robq1970 3 · November 6, 2019

Serial Number 9387 was reported as accurate.

pmtime Supporter 612 · January 9, 2019

Serial Number 9480 was reported as inaccurate.

Note: Listed information is correct. Adding that this
has jewel's markings on the movement instead of
the Hamilton/Lancaster marks: Howes Bros
Clinton, Iowa
Curator Response: Thanks for the report. This information has been noted in the lookup data for this run.

Gimparoo Supporter 703 · November 24, 2017

Serial Number 9378 was reported as accurate.

Anonymous · December 11, 2016

Serial Number 9353 was reported as accurate.

Anonymous · November 15, 2015

Serial Number 9539 was reported as accurate.

Anonymous · May 14, 2015

Serial Number 9510 was reported as inaccurate.

Note: rectangular face and crystal, high domed crystal.
Stretch linked band, gold filled. Second hand in
bottom center of dial Hamilton Illinois

worldofantiques 199 · May 7, 2014

Serial Number 9459 was reported as accurate.

fordcasa Top Contributor Supporter 443 · June 29, 2013

Serial Number 9377 was reported as accurate.

Hamilton Grade 939 Pocket Watch