Citizen Eco-Drive Tsuki-Yomi' Radio-Controlled Moonphase Watch BY1018-55X

Introducing the Citizen 'Tsuki-yomi' Radio-Controlled Moon Phase - the world’s first light-powered radio-controlled moon phase movement. To celebrate the 30th anniversary of the first CITIZEN radio-controlled watch we are debuting the world’s first fully analogue moon phase function for light-powered watches. The Tsuki-yomi collection (directly translating to “reading the moon”) features a new radio-controlled Eco-Drive Cal. H874 movement that provides ±15 seconds accuracy per month, revolutionary proprietary Super Titanium™ material and artfully crafted moon pattern dials. Based on a unique mathematical formula developed by CITIZEN called “Luna Program”, the watch calculates the phase of the moon each day from signals received from multi-band radio transmitters. The phase of the moon at the six o’clock position is then automatically adjusted and displayed. With a striking red pattern of the moon’s surface on the dial paired with a black outer ring, and date display at the 4 o’clock position. Sustainably powered by any light, including moon light, with our proprietary Eco-Drive technology, this timepiece never needs a battery.

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We’re sure that you’ll love your new item, but on the rare occasion that it isn’t 100% right just send it back within 30days and we’ll be more than happy to give you a full refund or an exchange.

For Reduced items, Pre-Owned watches and items purchased under a credit agreement, we will be happy to refund or exchange your item providing it is returned to us within 14 days of purchase. View Returns Information