This Casio Edifice men\'s stainless steel bracelet watch has improved accuracy thanks to an Accurate Time System that automatically accesses, via a phone, a time server on the internet four times a day to ensure that current Home Time and World Time settings are always correct. With Casio\'s Tough Solar technology allowing this watch to convert not only sunlight but light from flourescent lamps and other sources into power, this watch will never need a new battery.