Pocket Watch Database

From the American Horology Archive:
Seth Thomas Grade 56 Pocket Watch

Seth Thomas Watch Co.

Grade: 56

Manufacturer: Seth Thomas Question Mark
Manufacturer Location: Thomaston, Connecticut Question Mark
Movement Serial Number: 28853 Question Mark
Grade: 56 Question Mark
Model: 2 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
Variant Est. Production: Login to View Question Mark
Size: 18s Question Mark
Jewels: 11j Question Mark
Jewel Setting: Login to View Question Mark
Movement Configuration: Hunting Question Mark
Movement Finish: Gilt Question Mark
Movement Setting: Lever Question Mark
Wind Mechanism: Pendant Question Mark
Plate: 3/4 Plate Question Mark
Balance Type: Expansion 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
Railroad Grade: Login to View Question Mark
U.S. Patents: Login to View Question Mark
Movement Markings: Login to View
Case: Various Question Mark
Run ID: 43.56G1.18S43.182M8.H8.L43.11J14 Question Mark
Data Research: 1904 Seth Thomas Serial List
Question Mark
Database Version: v52.645 Question Mark
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Registry Population:
Scoped for This Run Only
4 (2.00%) Question Mark
13 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, Variant Est. Production, Jewel Setting, Regulator Type, Hairspring, Standard Dial Type, Adjustments, Railroad Grade Designation, U.S. Patents, Movement Markings

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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.


SethThomasFan Top Contributor Seth Thomas Expert Supporter 451 · February 24, 2025

Serial Number 28863 was reported as accurate.

SethThomasFan Top Contributor Seth Thomas Expert Supporter 451 · September 11, 2023

Serial Number 28870 was reported as accurate.

SethThomasFan Top Contributor Seth Thomas Expert Supporter 451 · September 11, 2023

Serial Number 28853 was reported as accurate.

SethThomasFan Top Contributor Seth Thomas Expert Supporter 451 · September 10, 2023

Serial Number 28853 was reported as inaccurate.

Note: Grade: 56
Jewels: 11j
Regulator: Micrometer
Curator Response: Thanks for the report. The database has been updated accordingly.
Changes since this report was submitted:
Grade changed from 34 to 56
Jewels changed from 7J to 11j

SethThomasFan Top Contributor Seth Thomas Expert Supporter 451 · September 10, 2023

Serial Number 28870 was reported as inaccurate.

Note: Grade: 56
Jewels: 11j
Regulator: Micrometer
Curator Response: Thanks for the report. The database has been updated accordingly.
Changes since this report was submitted:
Grade changed from 34 to 56
Jewels changed from 7J to 11j
Seth Thomas Grade 56 Pocket Watch