Seth Thomas Pocket Watch: Serial Number 988907 (Grade Century)

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Century By Seth Thomas For Sears Pocket Watch

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Neat 2 tone Seth Thomas Republic USA 7 J pocket watch 1905 18s swls

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Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/seth-thomas/988907

Access Date: March 12, 2025

From the American Horology Archive:

Seth Thomas Watch Co.

Grade: Century

Private Label(s) in Run:

Sentinel U.S.A.

What is a Private Label?

Manufacturer:	Seth Thomas
Manufacturer Location:	Thomaston, Connecticut
Movement Serial Number:	988907
Grade:	Century
Variation:	Sentinel
Model:	18
Estimated Production Year:	1910
Run Quantity:	2,000
Grade/Model Run:	12 of 25
Grade/Model Total Production:	64,000
Variant Est. Production:	2,500 (6S-M18-7J-HTL-A-SENTINEL)
Size:	6s
Jewels:	7j
Movement Configuration:	Hunting
Movement Finish:	Two-Tone
Finish Pattern:	Stripe
Movement Setting:	Lever
Plate:	3/4 Plate
Regulator:	Plain
Hairspring:	Flat
Standard Dial Type:	Single-Sunk
Adjusted:	Yes
Railroad Grade:	No
Movement Markings:	Sentinel U.S.A. 17 Jewels Adjusted
Case:	Various
Run ID:	1013.G12.6S140.618M12.H420.L914.7J294
Database Version:	v52.622
Advanced Metrics
PWDB Absolute Rarity Index: Scoped for Grade/Size/Model/Configuration	192.69
PWDB Relative Rarity Index: Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration	568.44
Share of Production: Share within Manufacturer - Scoped for Grade/Size/Model/Configuration	4.516%
Registry Population: Scoped for This Run Only	2 (0.10%)

Value Guide

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Production Metrics Tree: Grade Century

Target Profile: 6S-M18-7J-HTL-A-SENTINEL

Seth Thomas Grade Century (All Variations): 409,900 ETP
6S: 66,400 16.20% 6s, Grade Century						Other: 343,500 Other Sizes or Unclassified
6S-M18: 64,000 15.61% 6s, Grade Century, Model 18					Other: 2,400 Other Models or Unclassified
6S-M18-7J: 62,000 15.13% 6s, Grade Century, Model 18, 7 Jewels				Other: 2,000 Other Jewels or Unclassified
6S-M18-7J-HTL: 33,700 8.22% 6s, Grade Century, Model 18, 7 Jewels, Hunting/Lever/Two-Tone			Other: 28,300 Other Configs or Unclassified
6S-M18-7J-HTL-A: 4,500 1.10%		Other: 29,200 Other Adjustments or Unclassified
6S-M18-7J-HTL-A-SENTINEL: 2,500 0.61%	Other: 2,000 Other Variants or Unclassified

Population Registry for This Run

	Image	Serial Number	Run Position	Primary Identification Method	Discovery Date
There are 2 watches in the population registry for this run with 1 image. Create a FREE account or login to view the population registry and add your watch to the registry. Create a Free Account

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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.