Seth Thomas Pocket Watch: Serial Number 77842 (Grade 506)

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Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/seth-thomas/77842

Access Date: November 14, 2024

From the American Horology Archive:

Seth Thomas Watch Co.

Grade: 506

Manufacturer:	Seth Thomas
Manufacturer Location:	Thomaston, Connecticut
Movement Serial Number:	77842
Grade:	506
Model:	3
Estimated Production Year:	1894
Run Quantity:	400
Grade/Model Run:	4 of 5
Grade/Model Total Production:	1,200
Variant Est. Production:	1,180 (18S-M3-17J-ONL)
Size:	18s
Jewels:	17j
Jewel Setting:	Screw-Set
Movement Configuration:	Openface
Movement Finish:	Nickel
Movement Setting:	Lever
Plate:	3/4 Plate
Balance Type:	Expansion
Regulator:	Reed
Hairspring:	Flat
Standard Dial Type:	Double-Sunk
Adjusted:	Yes
Adjusted to Position:	Yes
Movement Markings:	Seth Thomas Thomaston, Conn. Safety Pinion Adjusted to Temperature & Position
Case:	Various
Run ID:	171.506G4.18S171.183M69.O79.L161.17J17
Data Research:	1904 Seth Thomas Serial List
Database Version:	v52.431
Advanced Metrics
PWDB Absolute Rarity Index: Scoped for Grade/Size/Model/Configuration	3.61
PWDB Relative Rarity Index: Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration	10.22
Share of Production: Share within Manufacturer - Scoped for Grade/Size/Model/Configuration	0.085%
Registry Population: Scoped for This Run Only	4 (1.00%)

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Production Metrics Tree: Grade 506

Target Profile: 18S-M3-17J-ONL-AP

Seth Thomas Grade 506 (All Variations): 1,200 ETP
18S: 1,200 100.00% 18s, Grade 506
18S-M3: 1,200 100.00% 18s, Grade 506, Model 3
18S-M3-17J: 1,200 100.00% 18s, Grade 506, Model 3, 17 Jewels
18S-M3-17J-ONL: 1,180 98.33% 18s, Grade 506, Model 3, 17 Jewels, Openface/Lever/Nickel	Other: 20 Other Configs or Unclassified
18S-M3-17J-ONL-AP: 1,180 98.33%

Population Registry for This Run

	Image	Serial Number	Run Position	Primary Identification Method	Discovery Date
There are 4 watches in the population registry for this run with 2 images. 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.

Anonymous · February 14, 2022

Serial Number 77967 was reported as accurate.

Changes since this report was submitted:

Jewels changed from 16j or 17j to 17j

Anonymous · November 27, 2020

Serial Number 77844 was reported as accurate.

Changes since this report was submitted:

Jewels changed from 16j or 17j to 17j

Anonymous · July 19, 2020

Serial Number 77605 was reported as inaccurate.

Note: Gilt finish 7jewel

Curator Response: Thanks for the report. If possible, please upload an image of the movement to your collection for further evaluation and documentation.

Changes since this report was submitted:

Jewels changed from 16j or 17j to 17j

Anonymous · July 16, 2017

Serial Number 77842 was reported as accurate.

Changes since this report was submitted:

Jewels changed from 16j or 17j to 17j

ngupaan 95 · November 11, 2016

Serial Number 77842 was reported as inaccurate.

Note: This is not a Grade 506 but a Grade 179

Curator Response: In the 1896 Becken catalog, grade 506 is described as having a double-sunk dial, whereas grade 179 does not. Therefore, this particular watch matches grade 506 more cosely.

Changes since this report was submitted:

Jewels changed from 16j or 17j to 17j