Pocket Watch Database


From the American Horology Archive:
Seth Thomas Grade 171 Pocket Watch

Seth Thomas Watch Co.

Grade: 171

Manufacturer: Seth Thomas Question Mark
Manufacturer Location: Thomaston, Connecticut Question Mark
Movement Serial Number: 53107 Question Mark
Grade: 171 Question Mark
Model: 2 Question Mark
Estimated Production Year: 1890 Question Mark
Run Quantity: 300 Question Mark
Grade/Model Run: 1 of 23 Question Mark
Grade/Model Total Production: 5,195 Question Mark
Size: 18s Question Mark
Jewels: 15j Question Mark
Jewel Setting: Screw-Set Question Mark
Movement Configuration: Hunting Question Mark
Movement Finish: Nickel 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: 84.171G1.18S84.182M34.H34.L80.15J34 Question Mark
Data Research: 1904 Seth Thomas Serial List
Question Mark
Database Version: v52.457 Question Mark
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
15.64 Question Mark
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
45.73 Question Mark
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
0.367% Question Mark
Registry Population:
Scoped for This Run Only
5 (1.67%) 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.


Anonymous · March 30, 2021

Serial Number 53289 was reported as accurate.

Changes since this report was submitted:
Grade changed from 71 to 171
Movement Finish changed from Gilt to Nickel

Anonymous · August 19, 2020

Serial Number 53157 was reported as inaccurate.

Note: Has been adjusted and marked
Curator Response: Thanks for the report. If possible, please upload an image of the movement to your collection for further evaluation and documentation.
Changes since this report was submitted:
Grade changed from 71 to 171
Movement Finish changed from Gilt to Nickel

pwdmbj Supporter 557 · January 2, 2018

Serial Number 53061 was reported as accurate.

Changes since this report was submitted:
Grade changed from 71 to 171
Movement Finish changed from Gilt to Nickel

Anonymous · May 26, 2015

Serial Number 53038 was reported as accurate.

Changes since this report was submitted:
Grade changed from 71 to 171
Movement Finish changed from Gilt to Nickel
Seth Thomas Grade 171 Pocket Watch