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Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/seth-thomas/280427
Access Date: March 11, 2025
From the American Horology Archive:
Seth Thomas Grade 159 Pocket Watch
Seth Thomas Watch Co.

Grade: 159

Manufacturer: Seth Thomas Question Mark
Manufacturer Location: Thomaston, Connecticut Question Mark
Movement Serial Number: 280427 Question Mark
Grade: 159 Question Mark
Model: 5 Question Mark
Estimated Production Year: 1907 Question Mark
Run Quantity: 500 Question Mark
Grade/Model Run: 26 of 51 Question Mark
Grade/Model Total Production: 10,700 Question Mark
Variant Est. Production: 3,150 (18S-M5-15J-ONP) Question Mark
Size: 18s Question Mark
Jewels: 15j Question Mark
Jewel Setting: Screw-Set Question Mark
Movement Configuration: Openface Question Mark
Movement Finish: Nickel Question Mark
Movement Inlay Color: Black Question Mark
Movement Setting: Pendant Question Mark
Plate: Full Plate Question Mark
Regulator: Micrometric Question Mark
Hairspring: Breguet Question Mark
Standard Dial Type: Double-Pressed Question Mark
Adjusted: No Question Mark
Railroad Grade: No Question Mark
Movement Markings: Seth Thomas
Thomaston, Conn.
Safety Pinion.
15 Jewels
Case: Various Question Mark
Run ID: 556.159G26.18S485.185M250.O342.P33.15J152 Question Mark
Data Research: 1904 Seth Thomas Serial List
 Question Mark
Database Version: v52.622 Question Mark
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration		 32.21 Question Mark
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration		 94.67 Question Mark
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration		 0.755% Question Mark
Registry Population:
Scoped for This Run Only		3 (0.60%) Question Mark
Value Guide
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Production Metrics Tree: Grade 159

Target Profile: 18S-M5-15J-ONP-U

Seth Thomas Grade 159 (All Variations): 10,700 ETP
18S: 10,700 100.00%
18s, Grade 159
18S-M5: 10,700 100.00%
18s, Grade 159, Model 5
18S-M5-15J: 10,700 100.00%
18s, Grade 159, Model 5, 15 Jewels
18S-M5-15J-ONP: 3,150 29.44%
18s, Grade 159, Model 5, 15 Jewels, Openface/Pendant/Nickel 		Other: 7,550
Other Configs or Unclassified
18S-M5-15J-ONP-U: 3,150 29.44%

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 1 image.
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Seth Thomas Grade 159 Pocket Watch