Citizen’s Tsuki-yomi A-T Is Still a Stunner, Now Down to $716

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You can find plenty of attractive watches, but fewer combine an unusual dial with technology that makes everyday timekeeping easier. Citizen’s Tsuki-yomi A-T brings a moonphase display, atomic timekeeping, and a perpetual calendar into a titanium watch with a striking lunar-inspired design. It remains one of Citizen’s most distinctive analog models.

Price: $716
Where to Buy: Citizen

The gray-dial Citizen Tsuki-yomi A-T BY1010-57H is currently $716 on Citizen’s U.S. website, reduced from $895. That $179 saving makes its combination of Super Titanium construction, sapphire crystal, and Eco-Drive technology more attractive. The dial gets your attention first, and the timekeeping underneath it earns the price.

Amazon doesn’t list the gray-dial BY1010-57H right now. It does carry the same Tsuki-yomi A-T with a green dial (BY1010-57X), with the same 43mm Super Titanium case and H874 movement.

Price: $656.25
Where to buy: Amazon

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The Lunar Dial Is the Main Attraction

The Tsuki-yomi takes its name from the Japanese moon deity, and its gray dial draws inspiration from the lunar surface. A textured finish creates visual depth, while black accents and silver-tone hands complement the watch’s metallic construction.

The moonphase display sits at 6 o’clock, showing the changing appearance of the moon throughout its cycle. It gives the dial a recognizable centerpiece and connects the design to the movement’s most unusual function.

Citizen combines the moonphase with radio-controlled timekeeping. The H874 movement uses information derived from received time signals to calculate the lunar phase and adjust the display automatically.

That integration distinguishes the Tsuki-yomi from conventional moonphase watches. Its lunar display is a functional part of the movement, not simply a decorative reference to the moon.

The dial also includes day and date information alongside its other indicators. Buyers who prefer simple three-hand watches will find the layout busy, but the gray finish keeps the design visually cohesive.

Super Titanium Gives the 43mm Case an Advantage

The BY1010-57H features a 43mm silver-tone Super Titanium case and matching bracelet. Its faceted edges create an angular appearance that complements the detailed dial.

Super Titanium combines titanium with Citizen’s proprietary surface-hardening technology. It provides a lighter alternative to stainless steel and improved resistance to surface scratches.

The watch weighs approximately 105 grams. That gives buyers a full-size metal watch without the weight associated with many comparable stainless steel models.

A sapphire crystal protects the dial, while the bracelet uses a fold-over clasp with push buttons. The 22mm lug width complements the case’s broad proportions.

The 43mm diameter is the main fit consideration. Buyers who prefer compact watches should choose a smaller model, as the Tsuki-yomi is designed around a substantial case and detailed display.

Atomic Timekeeping Adds Practical Accuracy

The Tsuki-yomi A-T uses Citizen’s Caliber H874, a radio-controlled Eco-Drive quartz movement. It receives compatible atomic time signals to synchronize its timekeeping in supported reception areas.

That reduces the need for manual time corrections. When reception is unavailable, the watch continues operating through its quartz movement.

World time across 24 time zones provides another useful function. Travelers can select a supported time zone without calculating the difference from their home time manually.

This combination gives the Tsuki-yomi a practical advantage for buyers who value accurate timekeeping and travel functions. It delivers those capabilities on its own, with no phone involved.

Eco-Drive and a Perpetual Calendar

Citizen’s Eco-Drive technology converts natural and artificial light into energy stored in a rechargeable cell. It eliminates routine disposable-battery replacements associated with conventional quartz watches.

The H874 movement also includes a perpetual calendar. When properly configured, it accounts for different month lengths and leap years, reducing the need to correct the date manually.

Day and date indicators keep calendar information visible on the dial. The moonphase adds another function while reinforcing the watch’s lunar theme.

These features make the Tsuki-yomi a practical everyday watch despite its elaborate appearance. Its timekeeping and calendar systems require fewer routine adjustments than those of a basic analog watch.

Sapphire Crystal and 100-Meter Water Resistance

The Tsuki-yomi A-T has a sapphire crystal and a 100-meter water-resistance rating. Citizen identifies swimming, showering, and snorkeling as supported activities.

The titanium bracelet provides an alternative to leather for regular wear, including activities involving moisture. Its surface-hardening treatment also helps resist scratches from everyday contact.

The watch is not a dedicated diving instrument. Its water resistance supports recreational activities while maintaining the appearance of a sophisticated analog timepiece.

Citizen includes a five-year limited warranty. That provides manufacturer coverage for buyers planning to keep the watch for years.

Is the Citizen Tsuki-yomi A-T Worth $716?

At $716, the Tsuki-yomi A-T offers a convincing combination of materials, complications, and distinctive styling. Its Super Titanium case and bracelet, sapphire crystal, atomic timekeeping, Eco-Drive movement, perpetual calendar, and moonphase display give buyers substantial functionality.

The $179 reduction from $895 represents a 20% discount. It makes the gray-dial version the one to buy while the discount lasts.

The two clear compromises are the 43mm case and the crowded dial. Buyers who prefer smaller watches or minimalist designs should consider other models.

Who Should Buy the Citizen Tsuki-yomi A-T?

The Citizen Tsuki-yomi A-T BY1010-57H is an excellent choice for buyers who want an expressive analog watch with advanced quartz technology. Its lunar-inspired dial provides the visual appeal, while atomic timekeeping, Eco-Drive, and the perpetual calendar deliver practical functions.

Buyers who prefer compact cases, simple dials, or mechanical movements should skip it. The Tsuki-yomi is intended for someone who appreciates its detailed styling and technical complexity.

Price: $716
Where to Buy: Citizen

At $716, the gray-dial Tsuki-yomi A-T remains a standout Citizen watch and a strong purchase for the right buyer. Its lunar design gives it character, and the current discount makes its combination of technology and titanium construction even more compelling.

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