Citizen Tsuki-Yomi A-T 43 mm Grey Dial Super Titanium Eco-Drive Moonphase Bracelet [BY1010-57H]

The Citizen Tsuki-Yomi A-T [BY1010-57H] brings lunar beauty and advanced Japanese timekeeping technology together in a remarkably refined everyday watch. This 43 mm 30th Anniversary model is crafted in lightweight, durable Super Titanium™ and paired with a matching bracelet for exceptional wearing comfort. Its textured grey dial evokes the surface of the moon, while black accents and silver-tone details retain an assuredly modern, highly legible appearance. At 6 o’clock, the moonphase display gives the watch its celestial focal point.

Powered by Citizen’s light-powered Eco-Drive Calibre H874, the Tsuki-Yomi A-T converts both natural and artificial light into energy, eliminating the need for regular battery replacement. Atomic Timekeeping technology helps maintain exceptional precision, while practical complications include world time across 24 time zones, a perpetual calendar, and day-date display. Finished with a scratch-resistant sapphire crystal and 100 metres of water resistance, this is a true technical flagship for the collector who values advanced functionality without sacrificing elegance.

Technical Specifications

• Brand: Citizen
• Collection: Tsuki-Yomi A-T
• Model: BY1010-57H
• Movement: Citizen Calibre H874 Eco-Drive
• Power Source: Light-powered Eco-Drive
• Case Material: Silver-tone Super Titanium™
• Case Diameter: 43 mm
• Lug Width: 22 mm
• Dial: Grey with black and silver-tone accents
• Crystal: Sapphire crystal
• Bracelet: Super Titanium™
• Clasp: Fold-over clasp with push buttons
• Water Resistance: WR100 / 10 bar / 100 m / 333 ft
• Functions: Moonphase, Atomic Timekeeping, radio control, world time in 24 time zones, perpetual calendar, day-date

GTIN / UPC: 013205161223

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