Press and hold the [M. SET] button on the back of the movement for approximately 3 seconds .
If the clock is perfectly accurate to the minute but off by full hours, your time zone setting is incorrect. ch-899 chouchin radio controlled clock instructions
Press and hold the button for roughly 3 to 5 seconds. The minute hand will start to move. Press and hold the [M
Note: Even when set manually, the CH-899 movement will still attempt to search for a radio signal overnight to override the manual setting with perfect atomic time. Force a Radio Signal Search (REC Function) ch-899 chouchin radio controlled clock instructions
: On some models, the second hand may stop at the 6:00 position to indicate low power.