Pocket Watch Database


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

Seth Thomas Watch Co.

Grade: Century

Manufacturer: Seth Thomas Question Mark
Manufacturer Location: Thomaston, Connecticut Question Mark
Movement Serial Number: 990176 Question Mark
Grade: Century Question Mark
Model: 18 Question Mark
Estimated Production Year: 1910 Question Mark
Run Quantity: 3,000 Question Mark
Grade/Model Run: 12 of 24 Question Mark
Grade/Model Total Production: 65,500 Question Mark
Variant Est. Production: 29,800 (6S-M18-7J-HNL) Question Mark
Size: 6s Question Mark
Jewels: 7j Question Mark
Movement Configuration: Hunting Question Mark
Movement Finish: Nickel Question Mark
Movement Setting: Lever Question Mark
Plate: 3/4 Plate Question Mark
Regulator: Plain Question Mark
Hairspring: Flat Question Mark
Standard Dial Type: Single-Sunk Question Mark
Adjusted: No Question Mark
Railroad Grade: No Question Mark
Movement Markings: Century U.S.A.
Case: Various Question Mark
Run ID: 1009.G12.6S140.618M12.H420.L911.7J292 Question Mark
Database Version: v52.557 Question Mark
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
197.29 Question Mark
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
581.78 Question Mark
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
4.622% Question Mark
Registry Population:
Scoped for This Run Only
4 (0.13%) 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 420 · March 31, 2024

Serial Number 988852 was reported as inaccurate.

Note: Jewels: 15j
Variation: Lake Shore
Movement Markings: Lake Shore
15 Jewels

Anonymous · June 28, 2020

Serial Number 990176 was reported as accurate.

Linearpcs 22 · January 22, 2016

Serial Number 990978 was reported as accurate.

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