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Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/seth-thomas/73541
Access Date: June 25, 2024
From the American Horology Archive:
Seth Thomas Grade 171 Pocket Watch
Seth Thomas Watch Co.

Grade: 171

Private Label(s) in Run:

Reton Bros. & Co. - Marinette, Wis.

What is a Private Label?
Manufacturer: Seth Thomas
Manufacturer Location: Thomaston, Connecticut
Movement Serial Number: 73541
Grade: 171
Model: 2
Estimated Production Year: 1894
Run Quantity: 100
Grade/Model Run: 15 of 23
Grade/Model Total Production: 5,195
Size: 18s
Jewels: 15j
Jewel Setting: Screw-Set
Movement Configuration: Hunting
Movement Finish: Nickel
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: 374359
Movement Markings: Seth Thomas
Thomaston, Conn.
Safety Pinion
Pat'd Dec.6.'87.
Case: Various
Run ID: 160.171G15.18S160.182M78.H78.L150.15J78
Data Research: 1904 Seth Thomas Serial List
Database Version: v52.343
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration		 15.64
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration		 45.73
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration		 0.367%
Registry Population: 1 (1.00%)
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Production Metrics Tree: Grade 171

Target Profile: 18S-M2-15J-HNL-U

Seth Thomas Grade 171 (All Variations): 5,195 ETP
18S: 5,195 100.00%
18s, Grade 171
18S-M2: 5,195 100.00%
18s, Grade 171, Model 2
18S-M2-15J: 5,195 100.00%
18s, Grade 171, Model 2, 15 Jewels
18S-M2-15J-HNL: 5,195 100.00%
18s, Grade 171, Model 2, 15 Jewels, Hunting/Lever/Nickel
18S-M2-15J-HNL-U: 5,195 100.00%

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.
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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 · February 11, 2024

Serial Number 73546 was reported as inaccurate.

Note: This one is marked, KERZ BROS. GALENA, ILL. BOTH
MOVEMENT AND DIAL.

cougwatch Supporter 125 · January 10, 2019

Serial Number 73541 was reported as inaccurate.

Note: Grade fits 151or171or197or202, 15J micrometer
regulator, Nickle finish
Curator Response: Thanks for the report and images. Since it is not marked adjusted, the movement would be classified as a Grade 152 (after c.1893) or 171 (prior to c.1893). Both Grades are characterized as 18-Size, Model 2, Nickel, 15-Jewels in Settings, Unadjusted with a Micrometric Regulator.
Changes since this report was submitted:
Grade changed from 34 to 171
Jewels changed from 7J to 15j
Movement Finish changed from Gilt to Nickel
Seth Thomas Grade 171 Pocket Watch