Pocket Watch Database
https://pocketwatchdatabase.com/search/result/seth-thomas/90934
Access Date: April 16, 2025
From the American Horology Archive:

Seth Thomas Watch Co.
Grade: 508
Manufacturer: | Seth Thomas | ![]() |
Manufacturer Location: | Thomaston, Connecticut | ![]() |
Movement Serial Number: | 90934 | ![]() |
Grade: | 508 | ![]() |
Model: | 2 | ![]() |
Estimated Production Year: | 1895 | ![]() |
Run Quantity: | 100 | ![]() |
Grade/Model Run: | 6 of 7 | ![]() |
Grade/Model Total Production: | 560 | ![]() |
Variant Est. Production: | 450 (18S-M2-17J) | ![]() |
Size: | 18s | ![]() |
Jewels: | 17j | ![]() |
Jewel Setting: | Screw-Set | ![]() |
Movement Configuration: | Hunting | ![]() |
Movement Finish: | Nickel | ![]() |
Movement Setting: | Lever | ![]() |
Plate: | 3/4 Plate | ![]() |
Balance Type: | Expansion | ![]() |
Regulator: | Patent | ![]() |
Hairspring: | Flat | ![]() |
Standard Dial Type: | Double-Sunk | ![]() |
Adjusted: | Yes | ![]() |
Adjusted to Position: | Yes | ![]() |
Adjusted to Temperature: | Yes | ![]() |
Adjusted to Isochronism: | Yes | ![]() |
U.S. Patents: | 374359 | ![]() |
Case: | Various | ![]() |
Run ID: | 208.508G6.18S206.182M109.H109.L191.17J23 | ![]() |
Data Research: |
1904 Seth Thomas Serial List |
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Database Version: | v52.636 | ![]() |
Advanced Metrics | ||
PWDB Absolute Rarity Index: Scoped for Grade/Size/Model/Configuration | 1.69 | ![]() |
PWDB Relative Rarity Index: Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration | 4.53 | ![]() |
Share of Production: Share within Manufacturer - Scoped for Grade/Size/Model/Configuration | 0.040% | ![]() |
Registry Population: Scoped for This Run Only | 1 (1.00%) | ![]() |
Production Metrics Tree: Grade 508
Target Profile: 18S-M2-17J-HNL-A0PTI
Seth Thomas Grade 508 (All Variations): 560 ETP | |
18S: 560 100.00% 18s, Grade 508 |
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18S-M2: 560 100.00% 18s, Grade 508, Model 2 |
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18S-M2-17J: 450 80.36% 18s, Grade 508, Model 2, 17 Jewels |
Other: 110
Other Jewels or Unclassified |
18S-M2-17J-HNL: 450 80.36% 18s, Grade 508, Model 2, 17 Jewels, Hunting/Lever/Nickel |
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18S-M2-17J-HNL-A0PTI: 450 80.36% |
Population Registry for This Run
Image | Serial Number | Run Position | Primary Identification Method | Discovery Date | |
---|---|---|---|---|---|
There is 1 watch in the population registry for this run with 1 image.
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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 · November 17, 2017
Serial Number 90934 was reported as inaccurate.
to tempeture and position"8. It has a micro whip
style regulator..the dial is the same type you
see on the ones marked "Henry molineux" double
sunk Roman numbers with Seth Thomas in fancy
script letting. Open morning glory hands.
Anonymous · November 17, 2017
Serial Number 90934 was reported as inaccurate.
setting on top of center gear arbor with three
screws holding it to the plate. Snowflake and
other various damaskeen designs.
Anonymous · November 16, 2017
Serial Number 90934 was reported as inaccurate.
gold settings. Naked on Harrell bridge "adjusted
to temp and position. It's hunter case Movt. Gold
timing screws. Fancy snowflake engraving on
plates. Flat hairspring. Double sunk dial with
Seth Thomas letting in fancy script.

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This WatchFrom This Run
uploaded by grunt76
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Image Source/Credit: Jones & Horan Auctions
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Image Source/Credit: Jones & Horan Auctions
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Image Source/Credit: eBay Auction
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Image Source/Credit: Jones & Horan Auctions
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Image Source/Credit: eBay Auction
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Image Source/Credit: eBay Auction