Citizen Eco-Drive 200 Meter BM6400-00E User Manual page 4

[2] Models with calendar (date and weekday) display
* If your watch has a screw-type crown, lift up the crown to loosen it before
operation. Be sure to press the crown down firmly after operation.
[Date display models]
Solar cell
7
The position of the calendar may differ depending on models.
4
Calendar setting
position
Time
setting
position
Crown
Normal position
Date
[Date, day of the week
display models]
Solar cell
7
SUN
Calendar setting
position
Time
setting
position
Crown
Normal position
Date, day of the week