Powered by Eco-Drive technology, the Citizen Calendrier Moonphase in black ion–plated stainless steel has the timeless style to take you to the moon and back (no battery required). #MyCitizen #CitizenWatch #CitizenCalendrier #EcoDrive #menswatch #InstaWatch . . . . MSRP: $525 USD Model #: BU0057-54E