



Citizen Tsuki-yomi BY1030-50E | Eco-Drive Radio-Controlled Moon Phase
Elevate your collection with the Citizen BY1030-50E, a pinnacle of horological technology from the Tsuki-yomi collection. Featuring the world's first light-powered moon phase movement, this timepiece blends sophisticated engineering with a bold, monochromatic aesthetic.
Unlike its silver counterpart, the BY1030-50E features a deep black, textured dial inspired by the shadows of the lunar surface. The high-contrast moon phase window at 6 o'clock stands out against the dark backdrop, providing a mathematically perfect tracking of the lunar cycle.
Specifications
Shipping & Taxes
Shipping Notice
All orders ship from Singapore.
U.S. Customers:
Effective August 29, 2025, the U.S. government has removed the de minimis exemption. As a result, a 10% import tariff may apply to all shipments, regardless of order value.
Buyers are responsible for paying any customs fees, duties, taxes, or handling charges charged by their local authorities.
If you need help understanding your country’s import rules, contact our support team.
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