Seth Thomas Pocket Watch: Serial Number 1257 (Grade 55)

Sell Your Watch Save to My Collection Print Page Find a Mainspring Find a Balance Staff

Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/seth-thomas/1257

Access Date: November 10, 2024

We noticed that you entered a relatively short serial number.
"1257" 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.

From the American Horology Archive:

Seth Thomas Watch Co.

Grade: 55

Manufacturer:	Seth Thomas
Manufacturer Location:	Thomaston, Connecticut
Movement Serial Number:	1257
Grade:	55
Variation:	Type 2
Model:	1
Estimated Production Year:	1885
Run Quantity:	500
Grade/Model Run:	1 of 3
Grade/Model Total Production:	2,150
Variant Est. Production:	500 (18S-M1-11J-OGL-U-TYPE 2)
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:	Reed
Hairspring:	Flat
Standard Dial Type:	Single-Sunk
Adjusted:	No
Railroad Grade:	No
U.S. Patents:	310865, 325568
Movement Markings:	Seth Thomas Thomaston, Conn. Patented Jan.13, & Sept.1. 85.
Case:	Various
Run ID:	3.55G1.18S3.181M3.O3.L3.11J3
Data Research:	1904 Seth Thomas Serial List
Database Version:	v52.431
Advanced Metrics
PWDB Absolute Rarity Index: Scoped for Grade/Size/Model/Configuration	6.47
PWDB Relative Rarity Index: Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration	18.67
Share of Production: Share within Manufacturer - Scoped for Grade/Size/Model/Configuration	0.152%
Registry Population: Scoped for This Run Only	1 (0.20%)

Value Guide

What is My Watch Worth?

Have a Question?

Ask the experts in The Pocket Watch Group

Production Metrics Tree: Grade 55

Target Profile: 18S-M1-11J-OGL-U-TYPE 2

Seth Thomas Grade 55 (All Variations): 8,040 ETP
18S: 8,040 100.00% 18s, Grade 55
18S-M1: 2,150 26.74% 18s, Grade 55, Model 1		Other: 5,890 Other Models or Unclassified
18S-M1-11J: 2,150 26.74% 18s, Grade 55, Model 1, 11 Jewels
18S-M1-11J-OGL: 2,150 26.74% 18s, Grade 55, Model 1, 11 Jewels, Openface/Lever/Gilt
18S-M1-11J-OGL-U: 2,150 26.74%
18S-M1-11J-OGL-U-TYPE 2: 500 6.22%	Other: 1,650 Other Variants or Unclassified

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. Create a FREE account or login to view the population registry and add your watch to the registry. Create a Free Account

Help Us Help Others By Improving the Database:

Does this information describe your movement accurately?

Yes

Why Might This Information Be Incorrect?

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.