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 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.
Tsuki-yomi A-T
Free Bracelet Sizing
5 Year limited warranty
Product Details
Model
- BY1010-57H
- 9/19/2023
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
- Gray
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
Great watch!
Beautiful watch, well made and wonderful depth to the dial. The weight of the titanium makes the watch feel more comfortable than a traditional stainless steel watch. I highly recommend this watch.
Great watch
I am happy with my watch. Before receiving the watching, I was a little worried about the atomic signal not automatically syncing, but it has synced every night without issue. The only thing I would warn people about it do not attempt to resize on your own. I did not realize that the links had collars and pins, rather than just the normal pins with one end larger than the other. I was able to take to a jeweler and they took care of me without issue. All in all, great watch.
Amazing watch love the accuracy and it’s lightweight very nice watch worth the buy.
Another amazing timepiece from Citizen.
I own 21 citizen watches which I have been collecting for over 45 years and this model is a great addition to my collection being the first Citizen to display moon phases. It is attractive, light and "bulletproof" being encased in super titanium!
