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
Manufacturer Location: Lancaster, Pennsylvania
Movement Serial Number: 9311
Grade: 939
Model: 2
Class: 1
Estimated Production Year: 1895
Run Quantity: 300
Grade/Model Run: 3 of 7
Grade/Model Total Production: 1,310
Size: 18s
Jewels: 17j
Jewel Material: Ruby & Sapphire
Jewel Setting: Gold Settings (Screw-Set)
Movement Configuration: Hunting
Movement Finish: Nickel
Movement Inlay Color: Gilt
Movement Setting: Lever
Plate: Full Plate
Regulator: Goldthwait
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
Railroad Grade Classification: Class C
Dial Feet Locations: 2.6, 18.0, 38.2
Data Research: 1953 Hamilton Serial List
Case: Various
Run ID: 37.939G3.18S37.182M19.H19.L37.17J24
Database Version: v52.245
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
3.94
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
1.73
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
0.012%
Registry Population: 3 (1.00%)

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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 405 · 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 435 · June 29, 2013

Serial Number 9377 was reported as accurate.

Hamilton Grade 939 Pocket Watch