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: 558204
Grade: 171
Model: 2
Estimated Production Year: 1896
Run Quantity: 300
Grade/Model Run: 22 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.
Case: Various
Run ID: 741.171G22.18S626.182M158.H288.L652.15J192
Database Version: v52.235
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
15.64
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
0.367%
Registry Population: 4 (1.33%)

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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 · February 8, 2015

Serial Number 558232 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