CITIZEN ECO-DRIVE BY1034-59A RADIO CONTROLLED STAINLESS STEEL MEN WATCH

Citizen BY1034-59A – Eco-Drive Radio Controlled Moon Phase Watch for Men

The BY1034-59A is Citizen's new radio-controlled moon phase — a dressy Eco-Drive that combines atomic time accuracy with a fully analog moon phase display which automatically updates the moon phase via radio signal so it never needs manual correction. The white sunburst dial and two-tone stainless steel case and bracelet give it a warm, refined presence, while the moon phase indicator shows the current lunar position with Northern and Southern Hemisphere switching. Powered by Calibre H874 Eco-Drive — no battery required, ever. Runs on any light source with approximately 6 months of power reserve from a full charge. At 42mm and just 10.72mm thick, it wears like a dress watch with the technical capability of a far more expensive complication piece.

Key Features:

• Movement: Calibre H874 Eco-Drive (solar-powered quartz) — approx. 6 months power reserve, insufficient charge warning, overcharge prevention, power saving function
• Radio Controlled: Global atomic time synchronisation — automatically receives signals from atomic clocks worldwide for precise timekeeping
• Moon Phase: Fully analog display with automatic update — no manual correction required. Switchable between Northern and Southern Hemisphere
• Perpetual Calendar: Day, date, and 24-hour display — auto-corrects for month lengths and leap years, never needs manual date adjustment
• World Time: 24 world cities with daylight saving time (DST) support
• Dial: White sunburst with silver-tone hands and applied index hour markers, luminous hands and indices, three sub-dials
• Case: Two-tone stainless steel (silver and gold-tone), 42mm diameter, 10.72mm thick
• Water Resistance: 50M — suitable for everyday wear and light splashing
• Crystal: Sapphire glass — the most scratch-resistant watch glass available
• Bracelet: Silver
• Additional: Magnetic resistance, power reserve indicator, luminous hands and indices

Why Choose the Citizen BY1034-59A?

Moon phase watches usually require periodic manual correction — the lunar cycle doesn't align neatly with calendar months, so most moon phase displays drift over time. The BY1034-59A eliminates that entirely. Citizen's Luna Program uses the radio-controlled signal to keep the moon phase display continuously accurate without you ever touching it. Add the perpetual calendar (which also never needs correction), atomic time accuracy, world time for 24 cities, and a power saving function that extends the Eco-Drive reserve — and you have a watch that essentially maintains itself. The two-tone white-dial configuration is the most classical and versatile option in the collection. Also available in all-black (BY1035-56E).

Extra $15 OFF with min. $200 spend
Use Code: FORYOU15

Extra $30 OFF with min. $400 spend
Use Code: FORYOU30

Caliber No.: H874
Movement: Eco-Drive
Strap: Stainless Steel
Water Resistant: Water Resistant 50m
Thickness: 10.72mm
Case Size: 42mm
Case: Stainless Steel
Glass: Sapphire Glass
Maximum run time from full charge (Normal Use Condition): Approximately 6 months
24 World Cities Time
24hrs, Date and Day Display
Eco-Drive
Global Radio-Controlled
Insufficient Charge Warning Function
Luminous Hands and Index
Magnetic resistance
Moon Phase Display
Overcharge Prevention Function
Perpetual Calendar
Power Saving Function
Summer Time ON / OFF

Delivery within Singapore | Order by 11AM
(Checkout options may vary depending on minimum order requirements)

• Free Standard Delivery (3 business days)
• Free Next Day Delivery
• Express Delivery at $30 (order by 2PM)
• Click & Collect (ready in 2–3 business days)

Weekend & Public Holiday Orders
Orders placed during this time will be processed on the next business day.

For online purchase, you can have bracelet or leather strap adjustments done at any City Chain store. Please bring along your warranty book for the service.