Seth Thomas Pocket Watch: Serial Number 27300 (Grade 55)

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Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/seth-thomas/27300/movement

Access Date: December 11, 2024

From the American Horology Archive:

Seth Thomas Watch Co.

Grade: 55

Manufacturer:	Seth Thomas
Manufacturer Location:	Thomaston, Connecticut
Movement Serial Number:	27300
Grade:	55
Model:	3
Estimated Production Year:	1888
Run Quantity:	1,000
Grade/Model Run:	5 of 9
Grade/Model Total Production:	5,890
Size:	18s
Jewels:	11j
Jewel Setting:	Burnished Jewels
Movement Configuration:	Openface
Movement Finish:	Gilt
Movement Setting:	Lever
Plate:	3/4 Plate
Balance Type:	Expansion
Regulator:	Reed
Hairspring:	Flat
Standard Dial Type:	Single-Sunk
Adjusted:	No
Railroad Grade:	No
Movement Markings:	Seth Thomas Thomaston, Conn. Safety Pinion
Case:	Various
Run ID:	37.55G8.18S37.183M25.O35.L37.11J13
Data Research:	1904 Seth Thomas Serial List
Database Version:	v52.504
Advanced Metrics
PWDB Absolute Rarity Index: Scoped for Grade/Size/Model/Configuration	17.73
PWDB Relative Rarity Index: Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration	51.91
Share of Production: Share within Manufacturer - Scoped for Grade/Size/Model/Configuration	0.425%
Registry Population: Scoped for This Run Only	2 (0.20%)

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Production Metrics Tree: Grade 55

Target Profile: 18S-M3-11J-OGL-U

Seth Thomas Grade 55 (All Variations): 8,040 ETP
18S: 8,040 100.00% 18s, Grade 55
18S-M3: 5,890 73.26% 18s, Grade 55, Model 3	Other: 2,150 Other Models or Unclassified
18S-M3-11J: 5,890 73.26% 18s, Grade 55, Model 3, 11 Jewels
18S-M3-11J-OGL: 5,890 73.26% 18s, Grade 55, Model 3, 11 Jewels, Openface/Lever/Gilt
18S-M3-11J-OGL-U: 5,890 73.26%

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.