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 mm
- Silver-Tone
- Super Titanium
Lug
- 22 mm
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 g
Additional Functions
- Moonphase Indicator
- World Time in 24 Time Zones
- Day/Date
- Radio-Controlled
- Perpetual Calendar
Reviews
New favorite
Out of nearly 60 watches in my collection, only two or three do I consider my favorites that get worn more frequently than the rest. All but one are Citizen watches, and that small group has a new member now - my Tsuki-Yomi A-T. The watch is beautiful and arrived fully charged and already set and running. I just had to adjust the time zone and remove some protective wraps and it's been on my wrist since. My only complaint was that the shipper messaged on Friday that I should expect delivery Monday, even as it sat unmoving in a UPS facility for almost two full days. Only late Monday did it change to say to expect it on Tuesday, which is when I got it. I don't think Citizen got their money's worth on that shipment. Otherwise I'm delighted with the watch and the purchase.
Great Watch
Beautiful watch and a great design. Fits great and easily adjustable. I picked the normal size expecting to remove a few links to get it to the right size and now extra links if I ever need them. This is my daily so I can't wait to see how the coating holds over over time. So far no dings or scratches at all. Love the "set it once and forget it" ability of this watch!
Excellent Watch!
Love this new edition to my watch collection! Elegant and Style with exceptional functionality! Light weight and Sharp looking!
Hands down perfect watch
Love this watch and all of the features. It has enough features to be a conversation starter but not too many where it feels overwhelming. The staff at Citizen is also incredible from customer service to shipping to sizing. Shout out to Leslie for sizing the watch perfectly!