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Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/seth-thomas/210459
Access Date: November 14, 2024
From the American Horology Archive:
Seth Thomas Grade 260 Pocket Watch
Seth Thomas Watch Co.

Grade: 260

Manufacturer: Seth Thomas Question Mark
Manufacturer Location: Thomaston, Connecticut Question Mark
Movement Serial Number: 210459 Question Mark
Grade: 260 Question Mark
Variation: SR Question Mark
Model: 5 Question Mark
Estimated Production Year: 1903 Question Mark
Run Quantity: 60 Question Mark
Grade/Model Run: 6 of 19 Question Mark
Grade/Model Total Production: 1,530 Question Mark
Variant Est. Production: 1,270 (18S-M5-21J-ONL-A6PTI-SR) Question Mark
Size: 18s Question Mark
Jewels: 21j Question Mark
Jewel Setting: Screw-Set Question Mark
Movement Configuration: Openface Question Mark
Movement Finish: Nickel Question Mark
Movement Inlay Color: Gilt Question Mark
Movement Setting: Lever Question Mark
Plate: Full Plate Question Mark
Regulator: Micrometric Question Mark
Hairspring: Breguet Question Mark
Standard Dial Type: Double-Sunk Question Mark
Adjusted: Yes Question Mark
Adjusted to Position: Yes Question Mark
Adjusted # of Positions: 6 Question Mark
Adjusted to Temperature: Yes Question Mark
Adjusted to Isochronism: Yes Question Mark
Railroad Grade: Yes Question Mark
Movement Markings: Seth Thomas
Thomaston, Conn.
Safety Pinion.
Adjusted to Six Positions
No. 260
21 Jewel
Case: Various Question Mark
Run ID: 389.260G6.18S318.185M84.O176.L371.21J16 Question Mark
Data Research: 1904 Seth Thomas Serial List
 Question Mark
Database Version: v52.433 Question Mark
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration		 4.60 Question Mark
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration		 13.16 Question Mark
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration		 0.108% Question Mark
Registry Population:
Scoped for This Run Only		3 (5.00%) Question Mark
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Production Metrics Tree: Grade 260

Target Profile: 18S-M5-21J-ONL-A6PTI-SR

Seth Thomas Grade 260 (All Variations): 1,530 ETP
18S: 1,530 100.00%
18s, Grade 260
18S-M5: 1,530 100.00%
18s, Grade 260, Model 5
18S-M5-21J: 1,530 100.00%
18s, Grade 260, Model 5, 21 Jewels
18S-M5-21J-ONL: 1,530 100.00%
18s, Grade 260, Model 5, 21 Jewels, Openface/Lever/Nickel
18S-M5-21J-ONL-A6PTI: 1,470 96.08% Other: 60
Other Adjustments or Unclassified
18S-M5-21J-ONL-A6PTI-SR: 1,270 83.01% Other: 200
Other Variants or Unclassified

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 2 images.
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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 · January 28, 2017

Serial Number 210473 was reported as accurate.

Seth Thomas Grade 260 Pocket Watch