Pocket Watch Database

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

Seth Thomas Watch Co.

Grade: 320

Manufacturer: Seth Thomas
Manufacturer Location: Thomaston, Connecticut
Movement Serial Number: 3055279
Grade: 320
Model: Centennial
Estimated Production Year: 1912
Run Quantity: 1,300
Grade/Model Run: 2 of 10
Grade/Model Total Production: 25,600
Variant Est. Production: 21,600 (6S-MCENTENNIAL-7J-NP)
Size: 6s
Jewels: 7j
Movement Finish: Nickel
Finish Pattern: Wavy
Movement Setting: Pendant
Regulator: Plain
Hairspring: Flat
Adjusted: No
Railroad Grade: No
Movement Markings: Seth Thomas
Thomaston, Conn.
Case: Various
Run ID: 1078.320G2.6S137.M4.U51.P138.7J343
Database Version: v52.219
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
76.65
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
227.11
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
1.818%
Registry Population: 3 (0.23%)

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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 · May 3, 2022

Serial Number 3054506 was reported as inaccurate.

Note: Mine is a Countess Janet multicolored 17 Jewel
Movement
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 322 to 320
Jewels changed from 15j to 7J
Seth Thomas Grade 320 Pocket Watch