Pocket Watch Database

From the American Horology Archive:
Hamilton Grade 931 Pocket Watch

Hamilton Watch Co.

Grade: 931

Mixed Run: 16-Jewel and 17-Jewel Movements

Private Label(s) in Run:

The Union

What is a Private Label?
Manufacturer: Hamilton
Manufacturer Location: Lancaster, Pennsylvania
Movement Serial Number: 47849
Grade: 931
Model: 2
Class: 3
Estimated Production Year: 1899
Run Quantity: 300
Grade/Model Run: 14 of 14
Grade/Model Total Production: 4,060
Size: 18s
Jewels: 16j    Mixed Run
Movement Configuration: Hunting
Movement Finish: Nickel
Movement Setting: Lever
Plate: Full Plate
Adjusted: No
Railroad Grade: No
Dial Feet Locations: 2.6, 18.0, 38.2
Data Research: 1953 Hamilton Serial List
Case: Various
Run ID: 148.931G14.18S147.182M73.H73.L139.16J34
Database Version: v52.235
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
12.22
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
5.36
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
0.038%
Registry Population: 4 (1.33%)
Research Note: Multiple reports of 17-Jewel movements in run. #47905: Originally produced as a Grade 931 and subsequently upgraded from 16 Jewels to 17 Jewels (more consistent with the Grade 925 classification).

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 · December 1, 2022

Serial Number 47762 was reported as accurate.

Anonymous · May 15, 2021

Serial Number 47766 was reported as accurate.

Anonymous · May 12, 2021

Serial Number 47766 was reported as accurate.

Anonymous · May 26, 2020

Serial Number 47782 was reported as accurate.

Harlton Supporter 98 · February 2, 2020

Serial Number 47788 was reported as accurate.

Spartacus 3 · May 28, 2019

Serial Number 47750 was reported as accurate.

Changes since this report was submitted:
Jewels changed from 17j to 16j

Anonymous · December 28, 2018

Serial Number 47936 was reported as accurate.

Changes since this report was submitted:
Jewels changed from 17j to 16j

geoulri1 Supporter 58 · April 29, 2017

Serial Number 47905 was reported as inaccurate.

Note: marked 17 jewels

Wrstratton 134 · November 27, 2013

Serial Number 47849 was reported as inaccurate.

Note: Grade "the union" 17 jewel
Hamilton Grade 931 Pocket Watch