Citizen Tsuki-Yomi Radio Controlled Moon Phase Red Watch BY1018-55X

Introducing the Citizen 'Tsuki-yomi' Radio-Controlled Moon Phase - the world’s first light-powered radio-controlled moon phase watch. To commemorate the 30th anniversary of the first CITIZEN radio-controlled watch. The Tsuki-yomi collection features a new radio-controlled Eco-Drive Cal. H874 movement, offering ±15 seconds accuracy per month, with innovative Super Titanium™ material and intricately designed moon pattern dials. Powered by CITIZEN's Luna Program formula, the watch calculates the daily moon phase from signals received by multi-band radio transmitters automatically adjusting and displaying it at six o’clock. With a striking red moon surface pattern on the dial, a black outer ring, and a date display at the 4 o’clock position, this timepiece is sustainably powered by any light, including moonlight, using our proprietary Eco-Drive technology, eliminating the need for a battery.