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From the American Horology Archive:
Seth Thomas Watch Co.

Grade: 44

Manufacturer: Seth Thomas ?
Manufacturer Location: Thomaston, Connecticut ?
Movement Serial Number: 262 ?
Grade: 44 ?
Variation: Type 1 ?
Model: 1 ?
Estimated Production Year: 1885 ?
Run Quantity: 800 ?
Grade/Model Run: 1 of 5 ?
Grade/Model Total Production: 8,500 ?
Variant Est. Production: 800 (18S-M1-11J-OGL-U-TYPE 1) ?
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 ?
Movement Markings: Seth Thomas Thomaston, Conn. Pat'd. Jan.13.85. ?
Case: Various ?
Run ID: 1.44G1.18S1.181M1.O1.L1.11J1 ?
Data Research: 1904 Seth Thomas Serial List ?
Database Version: v52.978 ?
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Registry Population: Scoped for This Run Only: 12 (1.50%) ?
Research Note: Introduced December 1885