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 green 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
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Product Details
Model
- BY1010-57X
- 10/15/2024
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
- Green
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
Reviews
Moon phase
I love the watch. Love the green background
I love this Watch !!
I have always wanted a "Atomic" Radio signal capable watch. This watch is everything as described, including the moon phase feature. Although it is the most expensive watch of the 3 I already have, including a Citizen, the January sale made the purchase possible. This watch will always be accurate. It has become my go too watch !
Great watch
Unique, great looking, light, and accurate. Love that its radio controlled.
Great look and feel
Great look and feel. Size is good. The best part is the Titanium, which makes it so light and comfortable to wear. My husband loves the gift to add to the collection!!
Over the Moon With This Watch
I have long been a fan of Citizen's Eco-Drive "Atomic Timekeeping" watches that listen and set automatically to the NIST cesium fountain clock broadcasts by WWV. When I saw that functionality combined with a Moon complication, illustrating the orbital path of the Moon traveling from full to new over a month of days, I had to own a Tsuki-yomi A-T watch. It is a beautiful and innovative timepiece, exquisitely designed and finished. With case and band made of Titanium it is rugged yet light. The dial-pointer indicating days of the week is elegant. I am quite pleased with this watch, as I am with every Citizen watch I own.
GREAT WATCH ... as usual for Citizen
Tsuki-yomi A-T ... Moon Phase Atomic Watch with Citizen's world famous Eco Drive. Absolutely, love this watch. The Eco-Drive takes all the worry about battery / winding / etc. out of the wearer's mind. For those of us that have a few watches, this is one you never have to worry about the correct time ... this includes those with Daylight Savings' events. Plan on 30 minutes to an hour on initial receiving to familiarize yourself with the watch and set it up according to your location. Love the Dial ... falls in sync with the Moon Phase feature. Titanium ... this will throw first time users of this off a bit. These are much lighter than traditional watches. Seriously ... a lot of us equate weight on the wrist with quality. Not the case here ... literally. I had to get used to the weight difference. Not a bad thing, just different. Overall ... love the watch. Citizen comes through on this one.
A beauty
A lovely watch with great fit and finish. The dial face is definitely a darker shade of blue/green than shown in published images, but this is a minor quibble.
Awesome Moon Phase Watch
This watch is not only incredibly accurate, it reliably displays the phase of the moon. It is very easy to adjust the settings and is good looking as well. A plus is that it is a great value.
Great watch
I never thought I would spend almost a $1000 on a watch. I will say it’s the nicest watch I’ve ever owned, I’ve only bought citizen watches all my life. I saw it and had to have it so I started saving. It was so worth the $30 dollar upgrade delivery because I got the watch the very next day, even with a band adjustment. Thanks again.
Citizen Response
- 1
