Pocket Watch Database

From the American Horology Archive:
Seth Thomas Grade 320 Pocket Watch

Seth Thomas Watch Co.

Grade: 320

Manufacturer: Seth Thomas Question Mark
Manufacturer Location: Thomaston, Connecticut Question Mark
Movement Serial Number: 3068330 Question Mark
Grade: 320 Question Mark
Model: Centennial Question Mark
Estimated Production Year: 1912 Question Mark
Run Quantity: 4,000 Question Mark
Grade/Model Run: 10 of 12 Question Mark
Grade/Model Total Production: 24,100 Question Mark
Variant Est. Production: 20,100 (6S-MCENTENNIAL-7J-NP) Question Mark
Size: 6s Question Mark
Jewels: 7j Question Mark
Movement Finish: Nickel Question Mark
Finish Pattern: Stripe Question Mark
Movement Setting: Pendant Question Mark
Regulator: Plain Question Mark
Hairspring: Flat Question Mark
Adjusted: No Question Mark
Railroad Grade: No Question Mark
Movement Markings: Seth Thomas
Thomaston, Conn.
Safety Pinion
Case: Various Question Mark
Run ID: 1113.320G10.6S155.M13.U59.P154.7J367 Question Mark
Database Version: v52.450 Question Mark
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
72.56 Question Mark
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
213.78 Question Mark
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
1.702% Question Mark
Registry Population:
Scoped for This Run Only
12 (0.30%) 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.


Rcardkidz 4054 · August 12, 2020

Serial Number 3067397 was reported as accurate.

Changes since this report was submitted:
Grade changed from Centennial to 320
Size changed from 8 to 6
Factory Model changed from 26 to Centennial

rjcullis 114 · July 5, 2019

Serial Number 3068009 was reported as accurate.

Changes since this report was submitted:
Grade changed from Centennial to 320
Size changed from 8 to 6
Factory Model changed from 26 to Centennial

cmdraven 4083 · June 29, 2019

Serial Number 3068009 was reported as accurate.

Changes since this report was submitted:
Grade changed from Centennial to 320
Size changed from 8 to 6
Factory Model changed from 26 to Centennial

Anonymous · May 20, 2019

Serial Number 3068822 was reported as accurate.

Changes since this report was submitted:
Grade changed from Centennial to 320
Size changed from 8 to 6
Factory Model changed from 26 to Centennial
Seth Thomas Grade 320 Pocket Watch