Pocket Watch Database

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

Seth Thomas Watch Co.

Grade: 171

Manufacturer: Seth Thomas
Manufacturer Location: Thomaston, Connecticut
Movement Serial Number: 98399
Grade: 171
Model: 2
Estimated Production Year: 1895
Run Quantity: 475
Grade/Model Run: 20 of 23
Grade/Model Total Production: 5,195
Size: 18s
Jewels: 15j
Jewel Setting: Screw-Set
Movement Configuration: Hunting
Movement Finish: Nickel
Movement Setting: Lever
Plate: 3/4 Plate
Balance Type: Expansion
Regulator: Reed
Hairspring: Flat
Standard Dial Type: Single-Sunk
Adjusted: No
Railroad Grade: No
U.S. Patents: 374359
Movement Markings: Seth Thomas
Thomaston, Conn.
Safety Pinion
Pat'd Dec.6.'87.
Case: Various
Run ID: 226.171G20.18S224.182M124.H124.L208.15J95
Database Version: v52.219
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
15.55
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
45.73
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
0.369%
Registry Population: 3 (0.63%)

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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 290 · January 28, 2023

Serial Number 98399 was reported as accurate.

Anonymous · April 13, 2021

Serial Number 98575 was reported as accurate.

Changes since this report was submitted:
Grade changed from Unknown to 171

Anonymous · December 30, 2020

Serial Number 98573 was reported as inaccurate.

Note: Grade 180 16 or 17 jewels
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 Unknown to 171

Anonymous · February 16, 2015

Serial Number 98569 was reported as accurate.

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

Anonymous · February 16, 2015

Serial Number 98569 was reported as accurate.

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