Seth Thomas Pocket Watch: Serial Number 8633 (Grade 44)

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Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/seth-thomas/8633/movement

Access Date: November 25, 2024

We noticed that you entered a relatively short serial number.
"8633" could possibly indicate the grade of the watch and not the serial number of your movement. Serial numbers are usually more than a few digits.

From the American Horology Archive:

Seth Thomas Watch Co.

Grade: 44

Manufacturer:	Seth Thomas
Manufacturer Location:	Thomaston, Connecticut
Movement Serial Number:	8633
Grade:	44
Variation:	Type 3
Model:	1
Estimated Production Year:	1886
Run Quantity:	2,200
Grade/Model Run:	5 of 5
Grade/Model Total Production:	8,500
Variant Est. Production:	7,000 (18S-M1-11J-OGL-U-TYPE 3)
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:	Plain
Hairspring:	Flat
Adjusted:	No
Railroad Grade:	No
U.S. Patents:	310865, 325568
Movement Markings:	Seth Thomas Thomaston, Conn. Pat'd. Jan.13. & Sept.1. 85.
Case:	Various
Run ID:	8.44G5.18S8.181M8.O8.L8.11J7
Data Research:	1904 Seth Thomas Serial List
Database Version:	v52.462
Advanced Metrics
PWDB Absolute Rarity Index: Scoped for Grade/Size/Model/Configuration	25.59
PWDB Relative Rarity Index: Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration	75.11
Share of Production: Share within Manufacturer - Scoped for Grade/Size/Model/Configuration	0.600%
Registry Population: Scoped for This Run Only	11 (0.50%)

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Production Metrics Tree: Grade 44

Target Profile: 18S-M1-11J-OGL-U-TYPE 3

Seth Thomas Grade 44 (All Variations): 8,500 ETP
18S: 8,500 100.00% 18s, Grade 44
18S-M1: 8,500 100.00% 18s, Grade 44, Model 1
18S-M1-11J: 8,500 100.00% 18s, Grade 44, Model 1, 11 Jewels
18S-M1-11J-OGL: 8,500 100.00% 18s, Grade 44, Model 1, 11 Jewels, Openface/Lever/Gilt
18S-M1-11J-OGL-U: 8,500 100.00%
18S-M1-11J-OGL-U-TYPE 3: 7,000 82.35%	Other: 1,500 Other Variants or Unclassified

Population Registry for This Run

	Image	Serial Number	Run Position	Primary Identification Method	Discovery Date
There are 11 watches in the population registry for this run with 7 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.