Pocket Watch Database

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

Seth Thomas Watch Co.

Grade: 171

Private Label(s) in Run:

A. Dockham - Tonawanda, N.Y.
Harry Donohue - Mendota, Ill.

What is a Private Label?
Manufacturer: Seth Thomas Question Mark
Manufacturer Location: Thomaston, Connecticut Question Mark
Movement Serial Number: 504257 Question Mark
Grade: 171 Question Mark
Model: 2 Question Mark
Estimated Production Year: 1897 Question Mark
Run Quantity: 400 Question Mark
Grade/Model Run: 21 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
Case: Various Question Mark
Run ID: 682.171G21.18S563.182M132.H249.L596.15J188 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
15.64 Question Mark
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
94.40 Question Mark
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
1.016% Question Mark
Registry Population:
Scoped for This Run Only
3 (0.75%) Question Mark
Research Note: #504207: Appears to have been marked "Adjusted" under the balance wheel but was later obfuscated.

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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.


funkywatches 69 · March 16, 2022

Serial Number 504261 was reported as accurate.

Changes since this report was submitted:
Adjusted changed from Yes to No

Anonymous · April 28, 2021

Serial Number 504261 was reported as accurate.

Changes since this report was submitted:
Grade changed from Unknown to 171
Adjusted changed from Yes to No

Anonymous · April 27, 2021

Serial Number 504261 was reported as accurate.

Changes since this report was submitted:
Grade changed from Unknown to 171
Adjusted changed from Yes to No

Anonymous · April 24, 2021

Serial Number 504261 was reported as inaccurate.

No further details were submitted with the report.
Changes since this report was submitted:
Grade changed from Unknown to 171
Adjusted changed from Yes to No
Seth Thomas Grade 171 Pocket Watch