Our New 1000 Series 24 Hour watch models with Double-Domed Mineral Crystal.
Double Dome SHAPE - convex on outer, concave on inner side.
A domed crystal is stronger than a flat crystal of comparable thickness because of the arch design.
Double-domed crystals offer more clarity than single-domed crystals.
Improved visibilty vs a flat crystal because dome crystals don't concentrate light for reflection (glare effect).
Dome crystals add some visual interest to the watch.