Seth Thomas Pocket Watch: Serial Number 25456 (Grade 101)

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Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/seth-thomas/25456

Access Date: November 10, 2024

From the American Horology Archive:

Seth Thomas Watch Co.

Grade: 101

Manufacturer:	Seth Thomas
Manufacturer Location:	Thomaston, Connecticut
Movement Serial Number:	25456
Grade:	101
Model:	3
Estimated Production Year:	1888
Run Quantity:	100
Grade/Model Run:	6 of 6
Grade/Model Total Production:	2,500
Size:	18s
Jewels:	15j
Jewel Setting:	Screw-Set
Movement Configuration:	Openface
Movement Finish:	Gilt
Movement Setting:	Lever
Plate:	3/4 Plate
Balance Type:	Expansion
Regulator:	Reed
Hairspring:	Flat
Standard Dial Type:	Double-Sunk
Adjusted:	Yes
Movement Markings:	Seth Thomas Thomaston, Conn. Safety Pinion Adjusted
Case:	Various
Run ID:	34.101G8.18S34.183M22.O32.L34.15J15
Data Research:	1904 Seth Thomas Serial List
Database Version:	v52.431
Advanced Metrics
PWDB Absolute Rarity Index: Scoped for Grade/Size/Model/Configuration	7.52
PWDB Relative Rarity Index: Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration	21.78
Share of Production: Share within Manufacturer - Scoped for Grade/Size/Model/Configuration	0.177%
Registry Population: Scoped for This Run Only	3 (3.00%)
Research Note: #25494: Tested by the Supt. of the Naval Observatory April 2, 1889

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Production Metrics Tree: Grade 101

Target Profile: 18S-M3-15J-OGL-A

Seth Thomas Grade 101 (All Variations): 2,750 ETP
18S: 2,750 100.00% 18s, Grade 101
18S-M3: 2,500 90.91% 18s, Grade 101, Model 3	Other: 250 Other Models or Unclassified
18S-M3-15J: 2,500 90.91% 18s, Grade 101, Model 3, 15 Jewels
18S-M3-15J-OGL: 2,500 90.91% 18s, Grade 101, Model 3, 15 Jewels, Openface/Lever/Gilt
18S-M3-15J-OGL-A: 2,500 90.91%

Population Registry for This Run

	Image	Serial Number	Run Position	Primary Identification Method	Discovery Date
There are 3 watches in the population registry for this run with 3 images. Create a FREE account or login to view the population registry and add your watch to the registry. Create a Free Account

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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 · March 20, 2022

Serial Number 25438 was reported as inaccurate.

Note: Hi again, I’m just wondering why the details of
this specific movement have not been updated to
“Adjusted” and also can you tell me what this
watch was manufactured? And since it’s adjusted,
would this qualify as a railroad approved
movement? - Rich Walker

Curator Response: Thanks for the report and images. Your watch would be classified as a Grade 101, manufactured c.1888. This grade was never specifically advertised as a railroad watch, but it would have been accepted into service by many railroads at the time of production. Interestingly, a watch from this run was tested for accuracy by the Superintendent of the Naval Observatory in April 1889. The Grade 101 is a rather uncommon grade.

Changes since this report was submitted:

Grade changed from 70 to 101

Adjusted changed from No to Yes

Anonymous · November 16, 2021

Serial Number 25438 was reported as inaccurate.

Note: This movement is marked “Adjusted”. I compared
my movement with some of the others that were
uploaded and it doesn’t seem to be on any of
those from what I can see but mine definitely says
“Adjusted” underneath the balance wheel. Do I
need to be a member to upload pictures?

Curator Response: Yes. Please upload images of your watch for further evaluation and documentation. Here is a link on how to upload images: https://blog.pocketwatchdatabase.com/2017/08/08/how-can-i-upload-photos-of-my-watch-to-the-pocket-watch-database/

Changes since this report was submitted:

Grade changed from 70 to 101

Adjusted changed from No to Yes