Citizen CC4054-68L - Using the Chronograph; Starting Chronograph Measurement

54
Setting summer time (DST)
2
Press and release the lower right button
Ⓐ
.
ON OFF
Summer time (DST) is
indicated.
The standard time is
indicated.
• Each time you press the button, the summer time (DST)
• setting (
ON/OFF
) changes alternately.