Seth Thomas Cast Metal Alarm Clock – Antique 1905 8-Day Serviced

This is an authentic early-20th-century Seth Thomas mechanical alarm mantel clock, dating to approximately 1900–1915, serviced and running beautifully.

Service performed: movement cleaned and oiled.

This substantial cast-metal (spelter) clock features a classic round dial with Roman numerals, subsidiary seconds at 12, and a separate alarm-setting sub-dial at 6, with a front-mounted ALARM / SILENT control lever. These clocks were designed for prominent placement on a mantel or shelf — practical, powerful, and unmistakably American in character.

The original paper dial shows attractive, even age crazing consistent with over a century of life. The movement runs strong, keeps good time, and the alarm functions exactly as intended.

Details

• Maker: Seth Thomas
• Origin: United States
• Circa: 1900–1915
• Movement: Mechanical, spring-driven
• Duration: 8-day wind
• Alarm: Fully functional
• Condition: Serviced, tested, and working

A striking and increasingly difficult-to-find antique mantel alarm clock, ideal for collectors or anyone who appreciates genuine American horology.

Approximate Dimensions

9“ Tall

7“ Wide

3 1/2“ Deep

Mechanical Clock Disclaimer

Important Information About Mechanical Clocks

Mechanical clocks are precision machines made up of many moving parts. Even when serviced and running properly, they may require periodic adjustment, maintenance, or servicing over time.

All clocks are tested and confirmed to be running at the time of listing unless otherwise stated. However, due to the nature of antique and vintage mechanical clocks, long-term accuracy and performance cannot be guaranteed.

By purchasing this clock, the buyer understands and accepts that:

• The clock is sold as-is
• Mechanical clocks may require future adjustment, cleaning, or servicing
• Ongoing maintenance and care are the responsibility of the owner

No warranty or long-term mechanical guarantee is implied or provided.