Category: American Clock Mainsprings
Many American antique clocks had mainsprings that were too strong when they were new. For many years, the so called “standard” mainspring size was 3/4″ by .018″ by 96″, and new mainsprings of this size will cause wear to the mainwheel teeth. In this section I give examples of better mainsprings to use for new replacements. It is best to keep the original old mainsprings in some cases, and I give examples of this, too.
New Haven Clyde Walnut Kitchen Clock, ca. 1885
Waterbury Niagara Oak Calendar Shelf Clock, ca. 1911
Seth Thomas Sentinel No. 19 Tambour Mantel Clock
Ansonia Enameled Iron Black Mantel Clock
Seth Thomas Adamantine Mantel Clock, 6 Half-Pillar, Black and Marbleized
1939 Plymouth (by Seth Thomas) Tambour Mantel Clock with Quarter Hour Strike
Terry Clock Company Walnut Shelf Clock
New Batch of Timesavers 15959 Clock Mainsprings
Strong Mainsprings Will Wear Out Your Antique American Clock!
The Ansonia 5-Pillar Shelf Clock Movement, ca. 1885
Seth Thomas Adamantine Clock, Mahogany Finish, Back Escapement Movement
Seth Thomas Dark Mahogany Tambour Mantel Clock, ca. 1920
