Horolovar 400 Day (Anniversary)
- Strong springs specifically for 400 Day clocks
- Horolovar brand are coiled undersized to slide easily into barrel drum
- Made in U.S.A.
Dimensions: Height x Thickness (Strength) x Diameter
The manufacturer states the mainsprings are not pre-lubricated, allowing you to follow the technical specifications of the clock you are working on.