



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 European Union (EU) & UK Buyers*
Orders are dispatched from Singapore.
Since July 2026, shipments entering the EU are subject to a fixed customs processing charge starting at *€3* per item/category. Import VAT is also charged on arrival:
- *Germany*: 19%
- *Other EU countries*: typically 17–27% (varies by country)
For the *UK, there is currently no customs duty on goods under £135. Import VAT is **20%*.
Destination couriers may also charge administrative or disbursement fees.
All import duties, VAT, customs charges, and courier handling fees are the responsibility of the customer. These are determined by local authorities and shipping couriers, not by our store.
*Notice to European Union (EU) & UK Buyers*
Orders are dispatched from Singapore.
Since July 2026, shipments entering the EU are subject to a fixed customs processing charge starting at *€3* per item/category. Import VAT is also charged on arrival:
- *Germany*: 19%
- *Other EU countries*: typically 17–27% (varies by country)
For the *UK, there is currently no customs duty on goods under £135. Import VAT is **20%*.
Destination couriers may also charge administrative or disbursement fees.
All import duties, VAT, customs charges, and courier handling fees are the responsibility of the customer. These are determined by local authorities and shipping couriers, not by our store.
