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From the American Horology Archive:
Seth Thomas Watch Co.

Grade: Century

New Century Series

Private Label(s) in Run:
  • Sentinel U.S.A.
  • Liberty U.S.A.

What is a Private Label?
Manufacturer: Seth Thomas ?
Manufacturer Location: Thomaston, Connecticut ?
Movement Serial Number: 1759980 ?
Grade: Century ?
Variation: Sentinel ?
Model: 13 ?
Estimated Production Year: 1905 ?
Run Quantity: 5,000 ?
Grade/Model Run: 14 of 15 ?
Grade/Model Total Production: 79,500 ?
Variant Est. Production: 32,500 (18S-M13-T) ?
Size: 18s ?
Jewels: 7j ?
Movement Configuration: Hunting ?
Movement Finish: Two-Tone ?
Movement Setting: Lever ?
Plate: 3/4 Plate ?
Regulator: Reed ?
Hairspring: Flat ?
Standard Dial Type: Single-Pressed or Single-Sunk ?
Adjusted: No ?
Railroad Grade: No ?
Movement Markings: Sentinel U.S.A. ?
Case: Various ?
Run ID: 1126.G64.18S969.1813M15.H455.L983.7J373 ?
Database Version: v52.978 ?
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Registry Population: Scoped for This Run Only: 4 (0.08%) ?