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BY1001-66E | Atessa Solar

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Regular price
¥103,950
Regular price
Sale price
¥103,950
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BY1001-66E | Atessa Solar
BY1001-66E | Atessa Solar
BY1001-66E | Atessa Solar
BY1001-66E | Atessa Solar
BY1001-66E | Atessa Solar
BY1001-66E | Atessa Solar
BY1001-66E | Atessa Solar
BY1001-66E | Atessa Solar
BY1001-66E | Atessa Solar




月齢を自動計算するアテッサ電波時計

Equipped with Citizen's unique Luna program, this is the world's first analog wristwatch with an automatic moon age calculation function. Based on the received time information, the shape of the moon for that day is displayed at the 6 o'clock position. It is an eco-drive model that eliminates the need for troublesome battery replacement, and is both functional and practical.




Amazingly light super titanium watch

This men's watch is made of super titanium, which is gentle on the skin and approximately 40% lighter than stainless steel, making it extremely comfortable to wear. The hardening technology Duratect is applied to the surface to protect the beautiful silver shine from scratches. The size is just 41.5mm, making it comfortable to wear for long periods of time.


Multifunctional solar radio waves that look great in business

Atessa has an intellectual impression with a beautiful contrast between the deep black dial and the silver case. Equipped with a direct flight function that receives radio waves from 4 areas around the world, it keeps accurate time even on overseas business trips. The sophisticated design that elevates your suit style is attractive.


High-performance Atessa that shines with Citizen technology

This is a high-quality solar radio clock that is resistant to scratches thanks to our unique surface hardening technology and maintains its new shine for a long time. Equipped with a Perfectex function that prevents the needle from shifting due to shock or magnetism, it boasts reliable accuracy even in harsh environments. This model is attractive for its sense of security and robustness that can only be expected from a domestic brand.












Genuine 7 Year Warranty Campaign Free Shipping Citizen Attessa Photo-powered Eco-Drive Radio Watch Direct Flight Moon Phase Titanium Moon Phase Solar Radio Made in Japan Photo-powered Eco-Drive Radio Men's Watch BY1001-66E CITIZEN ATTESA Eco-Drive Analog Black ◆Citizen ATTESA continues to advance the next generation with titanium. The world's first analog photovoltaic wristwatch equipped with Lunar Program, an automatic moon phase calculation function, debuts. A moon phase watch equipped with a new caliber based on the case shape of the ever-popular AT8040 series. Equipped with Lunar Program, an automatic moon phase calculation function using radio waves. Based on the received time information, the movement uses a unique formula to calculate the moon's age at that time, and displays the phase at the 6 o'clock position. The edge of the case is emphasized more than the base model, and the foot part has a more beautiful and free-flowing design. It maintains a sporty yet elegant look. The moon phase part uses printing and metal electrodeposition techniques to express a silver moon shining beautifully in the starry sky. In order to enjoy the movement of another hidden moon, the dial on the top that overlaps the disc hands is deliberately made transparent in a gradation pattern. Eliminates the city name display on the endpaper ring for a cleaner look. Release date: Released in July 2023

Product number BY1001-66E
Drive method Photovoltaic eco-drive radio wave (H874)
Material: case Super titanium/Duratect titanium carbide (silver color)
Material: belt Super titanium/Duratect titanium carbide (silver color) (split pipe type)
windshield Sapphire glass (non-reflective coating)
Dial color black
belt color silver
Size (length x width x thickness) Approximately 49.5×41.5×11mm
Can width Approximately 21mm
belt around arm Maximum about 20cm
weight Approximately 89g
Specifications Reinforced waterproof for daily life (10 atm)
Average monthly difference ±15 seconds (when not receiving)
Day & date display
24 hour display
Moon phase display (moon phase)
Moon age automatic calculation function
Northern/Southern hemisphere moon phase display switching function
perpetual calendar
China/US/Europe radio wave reception
Receiving station automatic selection function
Scheduled reception function
Forced reception function
World time function (24 hour difference)
Summer time function
Shock detection function
Automatic needle correction function
Charge amount display function
Charging warning function
Overcharge prevention function
Power save function
Operating period: Approximately 2.5 years when fully charged (when power save is activated)
metal resistant
Magnetic resistance type 1
Luminous (hands + index)
fit adjuster
City display engraved on the back cover

Made in Japan
accessories Warranty card/dedicated box
*As part of our efforts to address environmental issues, the instruction manual has been digitized.
Please check the included warranty for details.
Guarantee Five-year warranty from the manufacturer (Registration to MY CITIZEN required)


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