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

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Antique Working 1885 SETH THOMAS Gents Victorian Private Label Pocket Watch 18s

Check Price Source: eBay.com

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

Access Date: May 13, 2025

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
Wind Mechanism:	Pendant
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:	v52.646
Advanced Metrics
Members Only Data. Login or create a free account to unlock.
Registry Population: Scoped for This Run Only	2 (0.40%)
Research Note: #1266: Dial Marked "Fattorini & Sons - Bradford."

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Population Registry for This Run

	Image	Serial Number	Run Position	Primary Identification Method	Discovery Date
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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.