Pocket Watch Database


From the American Horology Archive:
Seth Thomas Grade 33 Pocket Watch

Seth Thomas Watch Co.

Grade: 33

Manufacturer: Seth Thomas Question Mark
Manufacturer Location: Thomaston, Connecticut Question Mark
Movement Serial Number: 580953 Question Mark
Grade: 33 Question Mark
Model: 6 Question Mark
Estimated Production Year: 1897 Question Mark
Run Quantity: 1,000 Question Mark
Grade/Model Run: 1 of 1 Question Mark
Grade/Model Total Production: 1,000 Question Mark
Size: 18s Question Mark
Jewels: 7j Question Mark
Movement Configuration: Openface Question Mark
Movement Finish: Gilt Question Mark
Movement Setting: Lever Question Mark
Plate: 3/4 Plate Question Mark
Balance Type: Expansion 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: Seth Thomas
Thomaston, Conn.
Case: Various Question Mark
Run ID: 773.33G20.18S651.186M23.O450.L682.7J190 Question Mark
Data Research: 1904 Seth Thomas Serial List
Question Mark
Database Version: v52.633 Question Mark
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
3.03 Question Mark
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
8.44 Question Mark
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
0.071% Question Mark
Registry Population:
Scoped for This Run Only
1 (0.10%) Question Mark
Research Note: #580953: Verified as a 7-Jewel Gilt movement. This serial block was designated as Model 6 in factory records. However, no grade classification for a 7-Jewel Gilt Model 6 has been documented to date. We have classified this run as Grade 33 since it represents the most consistent grade and was known to have been produced in Model 1 and Model 3 variations. Pending further discoveries, it is logical to conclude the company may have continued the use of the Grade 33 classification for this production run.

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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 444 · February 18, 2025

Serial Number 580953 was reported as inaccurate.

Note: Re: Run Quantity and Grade/Model Total Production:
There is a second specimen shown in the Seth
Thomas Model 6 Image Gallery; serial number
594115, outside of those parameters.

SethThomasFan Top Contributor Seth Thomas Expert Supporter 444 · February 7, 2025

Serial Number 580953 was reported as inaccurate.

Note: Movement Finish: Gilt
Hairspring: Flat
Curator Response: Thanks for the image uploads. For now, I have classified this one as Grade 33 since it is most consistent with that grade and we do not yet have any documentation to support a unique designation for this one.
Changes since this report was submitted:
Grade changed from 36 to 33
Movement Finish changed from Nickel to Gilt

Anonymous · November 9, 2019

Serial Number 580131 was reported as accurate.

Changes since this report was submitted:
Grade changed from Unknown to 33
Movement Finish changed from Gilt or Nickel to Gilt
Movement Setting changed from Lever or Pendant to Lever

Anonymous · June 11, 2018

Serial Number 580218 was reported as accurate.

Changes since this report was submitted:
Grade changed from Unknown to 33
Movement Finish changed from Gilt or Nickel to Gilt
Movement Setting changed from Lever or Pendant to Lever
Seth Thomas Grade 33 Pocket Watch