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
Perfect everyday watch
This watch isn't only beautiful but it's a great size. It's light weight which makes it a great everyday watch.
Great watch
I can’t say enough god things about this particular watch. It looks great, the watch arrived on time and very well packaged. The atomic clock sync works great, I live in NC and it works, just wait for the nightly sync if it doesn’t work during daytime hours. Love the functionality, moon phase looks great and works great, all the features Citizen chose to implement are useful and make this watch a must have for every day.
Citizen Response
Tsuki-yomi A-T
Excellent experience leading to an excellent purchase. Citizen Watch customer service was awesome in answering my questions and providing watch options based on my 'wants'. The watch was easy to set up and looks great!
Great watch
I love this watch and planning to buy the red/purple one. Extremely pleased with the purchase.
