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 metres. Calibre H874.
Model #: BY1010-57L
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Product Details
Model
- BY1010-57L
Movement
- H874
- Eco-Drive
- Powered by any light source, continuously and sustainably, eliminating the need to replace watch batteries.
Dial
- Blue
Case
- 43 mm
- Silver-Tone
- Super Titanium
Lug
- 22 mm
Band
- Bracelet
- Super Titanium
- Fold Over Clasp with Push Button
Crystal
- Sapphire Crystal
- Superior scratch resistance and hardness
Water-Resistance
- WR100/10Bar/333ft (Swimming, Marine Sports)
Weight (g)
- 105 g
Additional Functions
- Moonphase Indicator
- World Time in 24 Time Zones
- Day/Date
- Radio-Controlled
- Perpetual Calendar
Reviews
Hands down perfect watch
Love this watch and all of the features. It has enough features to be a conversation starter but not too many where it feels overwhelming. The staff at Citizen is also incredible from customer service to shipping to sizing. Shout out to Leslie for sizing the watch perfectly!
Quality
The watch is elegant yet can be used casually. Light weight and definitely and eye catcher. Very happy with the quality and, look and use of the watch. Great purchase.
Love it. I have always wanted a quality watch that had a moon phase on it, but didn’t want to spend a ton of money. This watch was a perfect fit and the fact that it is radio controlled was an additional bonus. Extremely happy with my purchase. Sorry that the photo doesn’t show the moon phase, but tomorrow is the new moon.
Beautiful Watch
This watch of the perfect blend of style and technology. It’s visually a treat … lightweight and comfortable. Maybe my best watch purchase.