Tsuki-yomi A-T
Atomic Timekeeping / Super Titanium
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 blue 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 metres. Calibre H874.
Model #: BY1010-57L
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Product Details
Model
- BY1010-57L
Movement
- H874
- Eco-Drive
- Powered by any light source, continuously and sustainably, eliminating the need to replace watch batteries.
Dial
- Blue
Case
- 43
- Silver-Tone
- Super Titanium
Lug
- 22
Band
- Bracelet
- Super Titanium
- Fold Over Clasp with Push Button
Crystal
- Sapphire Crystal
- Superior scratch resistance and hardness
Water-Resistance
- WR100/10Bar/333ft (Swimming, Marine Sports)
Weight (g)
- 105
Additional Functions
- Moonphase Indicator
- World Time in 24 Time Zones
- Day/Date
- Radio-Controlled
- Perpetual Calendar
Reviews
moon phase watch
Beautiful design - with renowned solar power and radio-controlled accuracy. A wonderful gift for our anniversary!
Favorite watch
I love this watch. Atomic timekeeping and solar power are great attributes for a watch. And the band is comfortable and the watch is not as bulky as some upscale watches.
Great watch
Looks beautiful. And it even came already set to my time zone! Can’t wait to wear it more.
A Beautiful Watch
I love this watch. Eco-drive, atomic time, perpetual calendar, moon phase, and a beautiful, uncluttered dial is more than I expected in a watch. Also, a sapphire crystal and titanium case and bracelet. It's hard for me to wear any other watch I own right now.