Seiko H022 - Manual (Page 26)

English
26
✩✩ When all the segments light up ✩✩
If Buttons C and D are pressed at the same time in
TIME/CALENDAR SETTING display, all the segments
of the display will light up as shown at right.
This is not a malfunction.
Press any one of the four buttons to return to TIME/
CALENDAR mode.
C
D