Tsuki-yomi A-T
Atomic Timekeeping / Super Titanium™
Product Description
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
Pinpoint accuracy for space fans
Where do I start? The watch is absolutely beautiful. I'm a huge space nerd and own a dobsonian telescope. I love stargazing and everything sci-fi. The moon phase is such a cool feature. And the moon backdrop is stunning. Combined with radio syncing with an atomic clock, you have perfect time. I should add, I live in Riverside County California and the watch receives the nightly signal just fine, even in a box. The Super Titanium gives the watch a feather weight feel. Last with Eco-drive, it will run for years. This watch is eco-friendly, will run forever, is super tough, and has unrivaled precision. It is almost a Perfect Blend of technology and timekeeping. My only complaint is the dead-beat seconds. Seriously, that's it. I pray Citizen doesn't solve the Eco-drive/deadbeat seconds because my bank account would be devastated.
Most excellent watch!
Very nice, very light, and super attractive--the blue is BLUE! :-) However, I would greatly appreciate the setting instructions being included with the watch. Don't make me go the webiste, find the watch, download a manual, and print. Really doesn't have to be that tough!
New Citizens Watch
Just received my new Super Titanium Radio Control Eco-Drive and it is SUPERB !!! Light weight and easy to set up. The ordering process was simple and the results exceeded expectations.
Beautiful Time Piece
This is my 3rd Citizen watch, and I couldn't be more pleased. The workmanship, detail, and operation are all what I have come to appreciate from Citizen. This will not be my last!
