The ethereal beauty of the moon has inspired watchmakers to create moon phase watches for centuries. Now Citizen has created a watch that not only elegantly displays the phase of the moon as it shines on earth from the reflected light of the sun, but one that is powered by light itself Moon phase indicator subdial at the 7 o'clock position Third hand indicates the day of month Subdial at the 10 o'clock shows the day of week Subdial at the 4 o'clock shows the month Charges in Sunlight or Indoors - No Batteries to Change - Ever! When Fully Charged has a 180 Day Power Reserve Genuine Leather strap with alligator grain with the convenience of a push-button folding buckle Low Charge Indicator & Time Reset Advisory in the Event it Ever Needs Charging Screw-Back Case Non-reflective scratch-resistant mineral crystal Solid Stainless Steel Case 100 Meter Water-Resistant Approximate dimensions: 38mm (1 1/2 inches) wide not including setting crown and 10.5mm thick