Pocket Watch Database

From the American Horology Archive:
Seth Thomas Grade 23J Pocket Watch

Seth Thomas Watch Co.

Grade: 23J

Manufacturer: Seth Thomas Question Mark
Manufacturer Location: Thomaston, Connecticut Question Mark
Movement Serial Number: 238346 Question Mark
Grade: 23J Question Mark
Model: 5 Question Mark
Estimated Production Year: 1913 Question Mark
Run Quantity: 200 Question Mark
Grade/Model Run: 1 of 1 Question Mark
Grade/Model Total Production: 200 Question Mark
Size: 18s Question Mark
Jewels: 23j Question Mark
Jewel Setting: Screw-Set Question Mark
Movement Configuration: Openface Question Mark
Movement Finish: Nickel Question Mark
Finish Pattern: Fishscale Question Mark
Movement Inlay Color: Black Question Mark
Movement Setting: Lever Question Mark
Plate: Full Plate Question Mark
Regulator: Micrometric Question Mark
Adjusted: Yes Question Mark
Movement Markings: Seth Thomas
Thomaston, Conn.
Safety Pinion.
Adjusted
23 Jewels
Case: Various Question Mark
Run ID: 522.G1.18S451.185M217.O309.L489.23J1 Question Mark
Data Research: 1904 Seth Thomas Serial List
Question Mark
Database Version: v52.433 Question Mark
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
0.60 Question Mark
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
1.33 Question Mark
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
0.014% Question Mark
Registry Population:
Scoped for This Run Only
16 (8.00%) Question Mark
Research Note: No factory grade designation is known for the 23-Jewel Model 5 movement. Some researchers have assigned this movement "Grade 272" for classification purposes. However, "272" is not a factory grade designation, and for this reason, we have classified this run as "23J" in the database.

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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.


Langleykj Supporter 1 · July 11, 2024

Serial Number 238232 was reported as accurate.

Anonymous · July 25, 2016

Serial Number 238250 was reported as accurate.

Changes since this report was submitted:
Grade changed from 272 to 23j

Anonymous · December 7, 2015

Serial Number 238358 was reported as accurate.

Changes since this report was submitted:
Grade changed from 272 to 23j
Seth Thomas Grade 23J Pocket Watch