Luminox A.9052 - Manual (Page 7)

PUSH B
24H or 12H AM/PM
selection.
PUSH B
Chime starts blinking.
(Alarm tone every full
hour)
PUSH A
Select the display mode.
(24H / 12H)
PUSH A
ON / Off Icon appears.
PUSH B
Confirm minute and second starts blinking
PUSH A
Reset seconds