For a touch of modern elegance and functionality, the women?s Calendrier not… only tracks the phases of the moon, but also displays the time, month, day, and date. The mother-of-pearl dial in a beautiful blue hue is inset with diamond accents and has reflective qualities. Due to the iridescent properties of mother-of-pearl, no two dials are alike in color and tone, creating a unique look. Along with a versatile 37mm silver-tone stainless steel case and bracelet, it runs on Eco-Drive technology, meaning it?s sustainably powered by any light and never needs a battery ? blending elevated style and advanced features into one elegant timepiece.