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Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/seth-thomas/208207
Access Date: May 05, 2024
From the American Horology Archive:
Seth Thomas Grade 260 Pocket Watch
Seth Thomas Watch Co.

Grade: 260

Manufacturer: Seth Thomas
Manufacturer Location: Thomaston, Connecticut
Movement Serial Number: 208207
Grade: 260
Variation: SR
Model: 5
Estimated Production Year: 1902
Run Quantity: 100
Grade/Model Run: 4 of 19
Grade/Model Total Production: 1,530
Variant Est. Production: 1,270 (18S-M5-21J-ONL-A6PTI-SR)
Size: 18s
Jewels: 21j
Jewel Setting: Screw-Set
Movement Configuration: Openface
Movement Finish: Nickel
Movement Inlay Color: Gilt
Movement Setting: Lever
Plate: Full Plate
Regulator: Micrometric
Hairspring: Breguet
Standard Dial Type: Double-Sunk
Adjusted: Yes
Adjusted to Position: Yes
Adjusted # of Positions: 6
Adjusted to Temperature: Yes
Adjusted to Isochronism: Yes
Railroad Grade: Yes
Movement Markings: Seth Thomas
Thomaston, Conn.
Safety Pinion
No. 260
Adjusted to Six Positions
21 Jewels
Data Research: 1904 Seth Thomas Serial List
Case: Various
Run ID: 351.260G4.18S282.185M51.O140.L333.21J8
Database Version: v52.249
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration		 4.60
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration		 13.16
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration		 0.108%
Registry Population: 6 (6.00%)
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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%

Population Registry for This Run

Image Serial Number Run Position Primary Identification Method Discovery Date
There are 6 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 · May 4, 2024

Serial Number 208246 was reported as accurate.

Snapper Supporter 130 · February 17, 2024

Serial Number 208282 was reported as accurate.

Anonymous · December 10, 2023

Serial Number 208271 was reported as accurate.

Anonymous · October 20, 2022

Serial Number 208285 was reported as inaccurate.

Note: Grade 260, adjusted to 6 positions
Curator Response: Thanks for the report. The database has been updated accordingly.
Changes since this report was submitted:
Grade changed from Missing Data to 260
Movement Finish changed from Gilt or Nickel to Nickel
Movement Setting changed from Lever or Pendant to Lever

Anonymous · May 5, 2017

Serial Number 208231 was reported as accurate.

wabash 134 · January 8, 2016

Serial Number 208261 was reported as accurate.

Seth Thomas Grade 260 Pocket Watch