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: 1888 Question Mark
Run Quantity: 200 Question Mark
Grade/Model Run: 1 of 13 Question Mark
Grade/Model Total Production: 3,900 Question Mark
Variant Est. Production: 3,700 (18S-M2-11J) Question Mark
Size: 18s Question Mark
Jewels: 11j Question Mark
Jewel Setting: Burnished Jewels Question Mark
Movement Configuration: Hunting Question Mark
Movement Finish: Gilt Question Mark
Movement Setting: Lever Question Mark
Plate: 3/4 Plate Question Mark
Balance Type: Expansion Question Mark
Regulator: Reed Question Mark
Hairspring: Flat Question Mark
Standard Dial Type: Single-Sunk Question Mark
Adjusted: No Question Mark
Railroad Grade: No Question Mark
U.S. Patents: 374359 Question Mark
Movement Markings: Seth Thomas
Thomaston, Conn.
Safety Pinion
Pat'd Dec.6.'87.
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: v52.428 Question Mark
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
11.74 Question Mark
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
70.64 Question Mark
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
0.763% Question Mark
Registry Population:
Scoped for This Run Only
3 (1.50%) Question Mark

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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 386 · September 11, 2023

Serial Number 28870 was reported as accurate.

SethThomasFan Top Contributor Seth Thomas Expert Supporter 386 · September 11, 2023

Serial Number 28853 was reported as accurate.

SethThomasFan Top Contributor Seth Thomas Expert Supporter 386 · 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 386 · 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