Citizen Eco-Drive Tsuki-yomi A-T 43mm Watch with Grey Moon Dial and Super Titanium Bracelet - BY1010-57H
Citizen BY1010-57H Eco-Drive Tsuki-yomi A-T 43mm Watch with Grey Moon Dial and Super Titanium Bracelet
When breakthrough technology and spectacular design meet, the Tsuki-yomi A-T is reading the moon. It’s the world’s first moonphase watch combined with atomic timekeeping innovation from Citizen, and this 30th Anniversary model is nothing short of impressive. The styling embodies the moon’s surface and a window at 6 o’clock displays the current moon phase. The timepiece measures 43mm in a silver-tone Super Titanium™ case, where sharp faceted edges pair with an elevated design throughout for an eye-catching aesthetic on the wrist. The gray dial works in tandem with black accents and silver-tone touches for a display that’s as handsome as it is legible. In addition to its running time, the watch features a moon phase display, world time in 24 time zones, a perpetual calendar, and day-date functionality. Powered by Citizen’s proprietary Eco-Drive technology to provide light-powered vitality without ever needing a battery. Water resistant up to 100 meters. Caliber H874.
Features
Movement Technology
- Eco-Drive (H874)
Powered by any light source, continuously and sustainably, eliminating the need to replace watch batteries.
Additional Functions
- Moonphase
- World Time in 24 Time Zones
- Radio Control
- Perpetual Calendar
- Day-Date
- 2.5 Year Power Reserve
General
Case
Dial
Gemstone
Strap/Bracelet
Movement
Approximate Dimensions
Warranty Information
Approximate Weight
Articles
Frequently Asked Questions
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The watch features a power reserve of approximately 2.5 years, powered by Citizen's Eco-Drive technology. This innovative system uses any light source to continuously and sustainably charge the watch, eliminating the need to replace batteries.
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Yes, the watch is water resistant up to 100 meters (10 Bar), making it suitable for swimming, showering, and snorkeling.
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Both the case and bracelet are crafted from Super Titanium, which is lightweight, durable, and resistant to scratches. This material also offers a sleek silver-tone finish enhancing the watch's appearance and comfort.
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It includes a moon phase display, world time in 24 time zones, a perpetual calendar, day-date functionality, and atomic timekeeping for precise time accuracy.
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The dial is protected by a superior scratch-resistant sapphire crystal, known for its hardness and clarity, ensuring durability and optimal visibility.