



Citizen Tsuki-yomi BY1035-56L | Eco-Drive Radio-Controlled Moon Phase

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The Citizen BY1035-56L represents a masterclass in astronomical timekeeping. As part of the world's first collection to feature a light-powered, radio-controlled moon phase, this timepiece combines the mystical allure of the lunar cycle with the absolute precision of atomic time.
This model features a rich, deep blue dial with a unique cratered texture that beautifully recreates the appearance of the moon's landscape. The mathematically accurate moon phase complication at 6 o'clock is automatically set via radio signals, ensuring your celestial display is always in perfect sync with the night sky.
The Citizen BY1035-56L represents a masterclass in astronomical timekeeping. As part of the world's first collection to feature a light-powered, radio-controlled moon phase, this timepiece combines the mystical allure of the lunar cycle with the absolute precision of atomic time.
This model features a rich, deep blue dial with a unique cratered texture that beautifully recreates the appearance of the moon's landscape. The mathematically accurate moon phase complication at 6 o'clock is automatically set via radio signals, ensuring your celestial display is always in perfect sync with the night sky.
Movement: Eco-Drive Solar (Caliber H874)
Accuracy: ±15 seconds per month (without radio signal reception)
Case size: 42.0 mm (Diameter) × 47.6 mm (Length) × 10.7 mm (Thickness)
Dial Color: Deep Blue with Luminous Hands and Indexes
Band: Stainless steel with a three-fold clasp and push-button release
Water Resistance: 100 Meters / 10 Bar
Functions: Summer time switching, overcharge prevention, and insufficient charge warning.
Movement: Eco-Drive Solar (Caliber H874)
Accuracy: ±15 seconds per month (without radio signal reception)
Case size: 42.0 mm (Diameter) × 47.6 mm (Length) × 10.7 mm (Thickness)
Dial Color: Deep Blue with Luminous Hands and Indexes
Band: Stainless steel with a three-fold clasp and push-button release
Water Resistance: 100 Meters / 10 Bar
Functions: Summer time switching, overcharge prevention, and insufficient charge warning.
Notice to Customers:
Orders are dispatched from Singapore.
For customers in the United States:
As of August 29, 2025, all goods imported into the U.S.—regardless of their value—may incur a 10% import duty. This change follows the removal of the de minimis threshold under updated U.S. customs policies.
Please note that customers are responsible for all import duties, taxes, customs charges, and any applicable handling fees.
For information specific to your country’s customs process, including courier fees or tax-free limits, please reach out to our support team.
Notice to Customers:
Orders are dispatched from Singapore.
For customers in the United States:
As of August 29, 2025, all goods imported into the U.S.—regardless of their value—may incur a 10% import duty. This change follows the removal of the de minimis threshold under updated U.S. customs policies.
Please note that customers are responsible for all import duties, taxes, customs charges, and any applicable handling fees.
For information specific to your country’s customs process, including courier fees or tax-free limits, please reach out to our support team.
