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 meters. Caliber H874.
Tsuki-yomi A-T
Free Bracelet Sizing
5 Year limited warranty
Product Details
Model
- BY1010-57L
- 12/19/2023
Movement Technology
- H874
- Eco-Drive
- Powered by any light source, continuously and sustainably, eliminating the need to replace watch batteries.
Case Width (mm)
- 43
Lug Width (mm)
- 22
Band Type
- Bracelet
- Super Titanium
Case Material
- Silver-Tone
- Super Titanium
Crystal
- Sapphire Crystal
- Superior scratch resistance and hardness
Clasp
- Fold Over Clasp with Push Buttons
Dial
- Blue
Water-Resistance
- WR100/10Bar/333ft [Swimming, Showering & Snorkeling]
Additional Functions
- Moonphase
- World Time in 24 Time Zones
- Radio Control
- Perpetual Calendar
- Day-Date
- Atomic Timekeeping
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Reviews
Love this watch
This is my new favorite watch!
Amazing timepiece
This was a present from my spouse, and I must admit that I am extremely satisfied with the overall quality of the watch. It is truly a magnificent timepiece with fantastic characteristics, and one in particular that has always intrigued me is the moonphase.
Excellent Purchase Decision
This watch purchase was to replace a 20 year old Tag Link Chronograph, for +- every day use. While I enjoyed the nuances of the prior automatic watch, and the look of the Chronograph (the functions of which I rarely used....), I was always having to check to see if it was precise on time or needed winding after a day or two of rest. I looked at Tag, Omega and Breitling Quartz versions, for a change of pace from the automatic. All were 2-3k, with very limited choice of Quartz > Automatic. It felt like each brand viewed their Quartz versions as "lesser than." I researched the Citizen choices and purchased this watch on the website, not having seen it in person. I was intrigued by the use of titanium and the Eco Drive Radio Controlled device. The watch has radio controlled time regulation from six atomic clocks. I was curious what it would be like to have a watch that always had the precise time and correct date... I also liked the look of the moon phase. The background is just enough of a difference, without being too much. The watch is beautiful and well made. It goes nicely with casual clothes or a full suit in a business setting. I have had numerous compliments. The only difference is the weight. As advertised, the titanium is more durable but lighter. When I first put it on, I was worried it might feel too light, just in terms of comparison to prior stainless steel bands. But after five days of wearing, I can attest it is actually much more comfortable. Its reserve is not 45 hours, or 90 hours. It is 6 months. From my perspective, the look of this watch is equal or better to the other competitors I mentioned. It keeps perfect time. If you must have a watch with a different name, I get it. But I must say, I am really enjoying doing something copletely different.
Love this watch
Great looking watch!! Easy to operate and keeps perfect time.
