Complete 400 Day Suspensions

Whether you call them 400-Day clocks, Anniversary clocks, or Schatz beauties, they all share one tiny, temperamental heart: the suspension spring.

When that thin ribbon of metal kinks or snaps, time literally stands still. We offer a premium selection of high-carbon steel suspension springs designed to bring your heirloom back to its rhythmic, rotating best.

Why Our Springs?

Standard wire won't do for an Anniversary clock. Our springs are engineered for the delicate torsional physics required to keep a pendulum rotating for a full year on a single wind.

Precision Consistency: Manufactured to exact thicknesses to ensure your clock doesn't gain or lose significant time.

High Fatigue Resistance: Made from specialized alloys that resist "setting" or snapping under the constant stress of the pendulum’s rotation.

Universal Compatibility: We stock a variety of sizes compatible with major brands, including Haller, Kundo, Schatz, and Kern.