CITIZEN TSUKI-YOMI A-T BY1010-57X: INNOVATION AND ELEGANCE IN A SINGLE WATCH
The Citizen Tsuki-yomi A-T BY1010-57X represents an innovative fusion of technology and art. As the world's first watch to combine moonphase with atomic timekeeping, this 30th anniversary model embodies innovation and elegance. Its 43 mm silver-tone Super Titanium™ case features sharp, faceted edges for a refined, futuristic look, complemented by a green dial with black and silver accents. The moonphase display at 6 o'clock symbolizes the moon's surface, while its additional functions include world time across 24 zones, perpetual calendar, day-date, and radio-controlled atomic precision. Powered by Citizen's Eco-Drive technology, it harnesses any light source for continuous, battery-free operation. Water resistant up to 100 metres, this exceptional timepiece defines modern sophistication.
TECHNICAL FEATURES OF THE MODEL
The BY1010-57X belongs to the Tsuki-yomi A-T 30th Anniversary collection and is designed for men. Its movement is Eco-Drive (Calibre H874), powered by any light source continuously and sustainably, eliminating the need to replace watch batteries. The case is Super Titanium with surface hardening treatment in silver-white tone, round in shape and 43 mm in diameter, with a lug width of 22 mm. The crystal is sapphire, with superior scratch resistance and hardness, and the bracelet is Super Titanium with the same hardening treatment, featuring a fold-over clasp with push button. The band length is 219.9 mm and the weight is 105 g. The dial is green.
FUNCTIONS AND WATER RESISTANCE
Its additional functions include moonphase, day-date, radio control, and calendar, as well as world time across 24 zones, perpetual calendar, and atomic timekeeping. Its water resistance is WR100/10Bar/333ft, suitable for swimming, showering, and diving.
The Citizen Tsuki-yomi A-T BY1010-57X is an exceptional piece that combines the precision of atomic timekeeping with the beauty of the moonphase, all in a Super Titanium case with a green dial. This 30th anniversary model, with its Eco-Drive technology and 100-metre water resistance, defines modern sophistication and watchmaking innovation.
The Citizen Tsuki-yomi A-T BY1010-57X: where atomic precision meets the beauty of the moonphase.