12:00 became 2:03. Then 2:04.

: Press and hold the M. SET button for approximately 3 seconds. Advance Hands : Hold the button to make the hands advance quickly.

After the battery is in, the hands will spin quickly and stop at the 12:00 position. The clock will stay there while it searches for the radio signal from Fort Collins, CO (WWVB).

To set up and operate your Chouchin CH-899 Radio Controlled Clock

Then, the numbers moved.