SethThomasFan · March 10, 2026
Serial Number 4525 was reported as inaccurate.
No further details were submitted with the report.
Information Provided by PocketWatchDatabase.com:
https://new.pocketwatchdatabase.com/search/result/seth-thomas/3350
https://new.pocketwatchdatabase.com/search/result/seth-thomas/3350
Access Date: June 3, 2026
From the American Horology Archive:
Seth Thomas Watch Co.
Grade: 44
We noticed that you entered a relatively short serial number.
"3350" could possibly indicate the grade of the watch and not the serial number of your movement. Serial numbers are usually more than a few digits.
"3350" could possibly indicate the grade of the watch and not the serial number of your movement. Serial numbers are usually more than a few digits.
Private Label(s) in Run:
What is a Private Label?
- Dan'l. Pratt's Son - Boston
- Trainmens Special - Chicago U.S.A.
- Century U.S.A.
- A. S. Bleyer - Central City, Neb.
- J. M. Heaney - Berlin Wis.
- Dan'l. Pratt's Son
- C. Liebenow & Son - Manitowoc, Wis.
- A.S. Bleyer - Central City, Neb.
What is a Private Label?
| Manufacturer: | Seth Thomas | ? |
| Manufacturer Location: | Thomaston, Connecticut | ? |
| Movement Serial Number: | 3350 | ? |
| Grade: | 44 | ? |
| Variation: | Type 3 | ? |
| Model: | 1 | ? |
| Estimated Production Year: | 1886 | ? |
| Run Quantity: | 4,800 | ? |
| Grade/Model Run: | 4 of 5 | ? |
| Grade/Model Total Production: | 8,500 | ? |
| Variant Est. Production: | 7,000 (18S-M1-11J-OGL-U-TYPE 3) | ? |
| Size: | 18s | ? |
| Jewels: | 11j | ? |
| Jewel Setting: | Burnished Jewels | ? |
| Movement Configuration: | Openface | ? |
| Movement Finish: | Gilt | ? |
| Movement Setting: | Lever | ? |
| Plate: | 3/4 Plate | ? |
| Balance Type: | Expansion | ? |
| Regulator: | Plain | ? |
| Hairspring: | Flat | ? |
| Adjusted: | No | ? |
| Railroad Grade: | No | ? |
| Movement Markings: | Seth Thomas Thomaston, Conn. Pat'd. Jan.13. & Sept.1. 85. | ? |
| Case: | Various | ? |
| Run ID: | 5.44G4.18S5.181M5.O5.L5.11J5 | ? |
| Data Research: | 1904 Seth Thomas Serial List | ? |
| Database Version: | v52.978 | ? |
| Advanced Metrics | ||
| Members Only Data. Login or create a free account to unlock. | ||
| Registry Population: Scoped for This Run Only: | 39 (0.81%) | ? |
|
Research Note: #2281, #2727, #2766: Verified as marked "Patented" instead of "Pat'd" #6372: No Patent Markings
|
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Continue Your Research
Population Registry for This Run
Total Known Population In Run 39/4,800
Percentage of Total Run 0.81%
|
There are 39 watches in the population registry for this run with 34 images.
Create a FREE account or login to view the population registry and add your watch to the registry. |
Improve the Database
Why Might This Information Be Incorrect?
Does this information describe your movement accurately?
Verification reports help confirm surviving examples and flag data that needs further research.
Verification Reports for this Run
The following reports have been submitted by members in reference to this production run. These reports help verify data and track inaccuracies that require further research.
SethThomasFan · March 10, 2026
Serial Number 4525 was reported as inaccurate.
No further details were submitted with the report.
SethThomasFan · August 14, 2025
Serial Number 4510 was reported as inaccurate.
Note: Movement Markings:
SethThomasFan · August 14, 2025
Serial Number 4510 was reported as inaccurate.
Note: A. S. Bleyer
Central City, Neb.
Pat'd. Jan.13. & Sept.1. 85.
Central City, Neb.
Pat'd. Jan.13. & Sept.1. 85.
SethThomasFan · August 16, 2024
Serial Number 2374 was reported as inaccurate.
Note: Movement Markings:
Seth Thomas
Thomaston, Conn.
Patented
Jan.13. & Sept.1. 85.
Seth Thomas
Thomaston, Conn.
Patented
Jan.13. & Sept.1. 85.
SethThomasFan · May 14, 2024
Serial Number 2374 was reported as accurate.
SethThomasFan · May 14, 2024
Serial Number 6305 was reported as inaccurate.
Note: Movement Markings: Dan'l. Pratt's Son
Boston
Pat'd. Jan.13. & Sept.1. 85.
Boston
Pat'd. Jan.13. & Sept.1. 85.
Curator Response: Thanks for the report. The database has been updated accordingly.
Anonymous · March 15, 2024
Serial Number 4787 was reported as accurate.
SethThomasFan · August 19, 2023
Serial Number 4988 was reported as accurate.
Anonymous · September 26, 2022
Serial Number 5436 was reported as accurate.
mlat2012 · August 31, 2021
Serial Number 3350 was reported as accurate.
Anonymous · August 9, 2021
Serial Number 6218 was reported as accurate.
Anonymous · August 9, 2021
Serial Number 6218 was reported as accurate.
Anonymous · June 23, 2021
Serial Number 5836 was reported as accurate.
Anonymous · May 12, 2021
Serial Number 5836 was reported as accurate.
mlat2012 · January 10, 2021
Serial Number 3350 was reported as accurate.
Anonymous · December 27, 2020
Serial Number 4666 was reported as accurate.
Changes since this report was submitted:
- Grade changed from 55 to 44
Anonymous · April 8, 2020
Serial Number 5573 was reported as accurate.
Anonymous · April 8, 2020
Serial Number 5969 was reported as accurate.
Anonymous · July 24, 2017
Serial Number 6296 was reported as accurate.
Anonymous · July 9, 2017
Serial Number 4963 was reported as accurate.
Changes since this report was submitted:
- Grade changed from 55 to 44
Anonymous · June 18, 2017
Serial Number 6574 was reported as accurate.
geoulri1 · May 16, 2017
Serial Number 6792 was reported as accurate.
Anonymous · March 24, 2017
Serial Number 3924 was reported as inaccurate.
No further details were submitted with the report.
Anonymous · February 18, 2017
Serial Number 2372 was reported as accurate.
Anonymous · February 9, 2017
Serial Number 3846 was reported as accurate.
indianbob · April 25, 2016
Serial Number 5498 was reported as accurate.
indianbob · April 25, 2016
Serial Number 2362 was reported as accurate.
indianbob · April 24, 2016
Serial Number 2372 was reported as accurate.
Anonymous · April 24, 2016
Serial Number 2372 was reported as accurate.
Anonymous · April 24, 2016
Serial Number 2372 was reported as accurate.
geoulri1 · April 21, 2016
Serial Number 6298 was reported as accurate.
Anonymous · April 5, 2016
Serial Number 4826 was reported as inaccurate.
No further details were submitted with the report.
Changes since this report was submitted:
- Grade changed from 55 to 44
Anonymous · December 6, 2015
Serial Number 5660 was reported as accurate.
Anonymous · November 30, 2015
Serial Number 6071 was reported as accurate.
dunlapjm · October 29, 2015
Serial Number 2766 was reported as accurate.
Anonymous · June 17, 2015
Serial Number 3353 was reported as accurate.
Anonymous · June 17, 2015
Serial Number 3533 was reported as accurate.
Anonymous · May 15, 2015
Serial Number 4744 was reported as accurate.
Changes since this report was submitted:
- Grade changed from 55 to 44
Anonymous · January 5, 2015
Serial Number 4229 was reported as accurate.
Changes since this report was submitted:
- Grade changed from 55 to 44
Anonymous · January 5, 2015
Serial Number 4229 was reported as accurate.
Changes since this report was submitted:
- Grade changed from 55 to 44