Analogue radio-controlled wall clock TFA 60.3509 — round, black, 310 mm, AA 1.5V

Analogue radio-controlled wall clock TFA 60.3509 is a round, black timepiece with a 310 mm diameter designed for clear, low-maintenance time display. The clock features a frameless design with a high-grade glass cover and extra large numerals for good readability from a distance. Timekeeping is automatic via the DCF77 radio signal, ensuring the displayed time is synchronized to the second and adjusts automatically for summer/winter time. The clock is powered by a single AA 1.5 V battery and mounts on the wall with a 45 mm case depth, making it suitable for homes, offices, classrooms and public areas where reliable, easy-to-read time is required.

Advantages

The radio-controlled mechanism provides accurate, maintenance-free time by synchronizing with the DCF77 signal, removing the need for manual setting and eliminating errors during daylight saving changes. The frameless black housing combined with a high-quality glass cover offers a clean, unobtrusive appearance while protecting the dial. Large numerals and clear hands improve legibility at a distance. Battery operation requires only one AA 1.5 V cell, simplifying installation and upkeep.

Suitable for

• Living rooms and kitchens where clear wall clocks are needed
• Offices and meeting rooms requiring synchronized time
• Classrooms and lecture halls for visible timekeeping
• Reception areas and public spaces with frequent passersby

Key specifications

• Type: Analogue radio-controlled wall clock
• Diameter: 310 mm
• Case colour: Black
• Cover: High-grade glass
• Display: Extra large numerals and clear hands for long-distance readability
• Time signal: DCF77 radio synchronization (automatic time setting and daylight saving adjustment)
• Power supply: 1 × AA 1.5 V battery
• Mounting depth: 45 mm (wall-mountable)

How to use

Install a fresh AA 1.5 V battery in the rear battery compartment, then hang the clock on a suitable wall hook or screw using the integrated mounting point. After powering up, the clock will automatically search for and receive the DCF77 signal to set the correct time; initial synchronization may take several minutes depending on signal strength. Position the clock away from large metal objects and strong electronic interference to improve reception. If the clock is moved or the battery replaced, allow time for automatic re-synchronization.

Usage recommendations

For reliable DCF77 reception, mount the clock on an interior wall facing toward the general direction of the DCF77 transmitter and avoid placing it directly next to sources of electromagnetic interference such as strong Wi‑Fi routers, transformers or large metal cabinets. Replace the AA battery annually or when accuracy degrades, and clean the glass cover with a soft, lint-free cloth.