Antique Seth Thomas Adamantine Mantle Clock Early 1900’s Serviced & Running. This is another nice condition “Adamantine” finish 8 day time and strike mantle clock made by the Seth Thomas Clock Co. In Thomaston, Connecticut during the earlier 1900’s (pre our involvement in WWI). This clock features the original signed Seth Thomas #89 series movement, which has been cleaned and serviced, and is in good running condition, keeping time and striking properly, counting the hour, i. 1 gong at 1:00, 2 gongs at 2:00, etc. On an antique cathedral gong, and announcing the half hour with a single toll. It is a quality movement that, if properly maintained, should last […]