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
Moon phase watch
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.
4th and best of my Citizens
The combination of titanium, sapphire crystal, radio time sync, and moon phase complication is unequaled. I really am enjoying this well priced, great looking watch. Radio time receipt works perfectly. I would prefer GPS but radio does the job.
Coolest watch ever!
This is my most recent watch purchase and maybe my last. It’s so cool! The Tsuki-Yomi has so many features for such a low price. The moonphase feature alone is worth the price, but it’s also powered by the sun AND there’s radio controlled atomic timekeeping! The day of the week and date are easy to read, and you can check the charge and time setting at the push of a button. If you love features, this is the watch for you. I like the titanium bracelet. Super lightweight. Watch the videos provided on the website to help you set it up, and you’ll be ready to go in minutes. You’ll set it once and be set for life.