Pocket Watch Database
Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/seth-thomas/86441/link
https://pocketwatchdatabase.com/search/result/seth-thomas/86441/link
Access Date: January 20, 2025
From the American Horology Archive:
Seth Thomas Watch Co.
Grade: 156
| Manufacturer: | Seth Thomas |  |
| Manufacturer Location: | Thomaston, Connecticut | |
| Movement Serial Number: | 86441 | |
| Grade: | 156 | |
| Model: | 2 | |
| Estimated Production Year: | 1894 | |
| Run Quantity: | 50 | |
| Grade/Model Run: | 2 of 2 | |
| Grade/Model Total Production: | 150 | |
| Size: | 18s | |
| Jewels: | 11j | |
| Jewel Setting: | Burnished Jewels | |
| Movement Configuration: | Hunting | |
| Movement Finish: | Nickel | |
| Movement Setting: | Lever | |
| Plate: | 3/4 Plate | |
| Regulator: | Reed | |
| Adjusted: | No | |
| Railroad Grade: | No | |
| U.S. Patents: | 374359 | |
| Movement Markings: | [Private Label] Safety Pinion Pat'd Dec.6.'87. |
|
| Case: | Various | |
| Run ID: | 190.156G2.18S188.182M95.H95.L176.11J31 | |
| Data Research: |
1904 Seth Thomas Serial List |
|
| Database Version: | v52.560 | |
| Advanced Metrics | ||
| PWDB Absolute Rarity Index: Scoped for Grade/Size/Model/Configuration | 0.45 | |
| PWDB Relative Rarity Index: Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration | 0.89 | |
| Share of Production: Share within Manufacturer - Scoped for Grade/Size/Model/Configuration | 0.011% | |
| Registry Population: Scoped for This Run Only | 2 (4.00%) | |
|
Research Note: *156 is a research designation and not a factory-assigned grade. Assigning this movement "Grade 156" follows a factory classification convention for this model, prepending "1" in front of the same grade number for the known gilded "sister" grade (Grade 56).
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Production Metrics Tree: Grade 156
Target Profile: 18S-M2-11J-HNL-U
| Seth Thomas Grade 156 (All Variations): 150 ETP |
| 18S: 150 100.00% 18s, Grade 156 |
| 18S-M2: 150 100.00% 18s, Grade 156, Model 2 |
| 18S-M2-11J: 150 100.00% 18s, Grade 156, Model 2, 11 Jewels |
| 18S-M2-11J-HNL: 150 100.00% 18s, Grade 156, Model 2, 11 Jewels, Hunting/Lever/Nickel |
| 18S-M2-11J-HNL-U: 150 100.00% |
Population Registry for This Run
| Image | Serial Number | Run Position | Primary Identification Method | Discovery Date | |
|---|---|---|---|---|---|
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There are 2 watches in the population registry for this run with 1 image.
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Help Us Help Others By Improving the Database:
Does this information describe your movement accurately?
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 421 · June 23, 2023
Serial Number 86441 was reported as accurate.
SethThomasFan Top Contributor Seth Thomas Expert Supporter 421 · June 21, 2023
Serial Number 86441 was reported as inaccurate.
Note: Private Label: Bismark
Movement Finish: Nickel
Plate: 3/4 Split Plate
Regulator: Micro-regulator (Reed)
Movement Markings: Bismark
Safety Pinion
Pat'd Dec. 6. '87.
Movement Finish: Nickel
Plate: 3/4 Split Plate
Regulator: Micro-regulator (Reed)
Movement Markings: Bismark
Safety Pinion
Pat'd Dec. 6. '87.
Curator Response: Thanks for the report. The database has been updated accordingly.
Changes since this report was submitted:
Grade changed from 34 to 156
Movement Finish changed from Gilt to Nickel
Jewels changed from 7J to 11j
Anonymous · April 13, 2021
Serial Number 86405 was reported as inaccurate.
Note: 86405 is an 18s stem wind lever set marked BISMARK
on dial and movement It is an 11J Nickle 3/4
plate skeletonized Seth Thomas pocketwatch. Sold
to me through American Timekeeper.
on dial and movement It is an 11J Nickle 3/4
plate skeletonized Seth Thomas pocketwatch. Sold
to me through American Timekeeper.
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 34 to 156
Jewels changed from 7J to 11j
Movement Finish changed from Gilt to Nickel
