Press the button repeatedly to advance the time by increments. Hold the button down to make the hands move quickly.
: Place a fresh 1.5V AA Alkaline battery into the compartment, noting the correct polarity (+/-).
The second, minute, and hour hands will begin spinning rapidly.
Press and hold the (Manual Set) button for 3 to 5 seconds. The minute hand will begin to move.
Local electronic interference. Appliances like routers, computers, TVs, and microwaves disrupt longwave radio signals.
If you cannot find the exact PDF, the instructions above match 95% of CH899 variants.
Change the battery every 12 months, even if the clock is still running. Weak batteries often cause the radio receiver to fail before the hands stop moving. If you'd like to dive deeper into this, let me know:
Locate the battery compartment on the rear of the clock movement. Remove the plastic cover.
