Citizen Eco-Drive BN4021-02E Instruction Manual page 48

Checking and correcting the reference position
Correcting the reference position
Correct the hands and indication to make them show their correct reference
positions.
Adjust the time after finishing correction of the reference position.
46
1
Stop altitude measurement or compass function
and check the power reserve indication.
Charge the watch if the power reserve is lower than "2".
2
Pull the crown out to position .
The hands move to their reference position.
3
Press and hold button
The reference position of the 100 m hand (compass
hand) becomes adjustable.
The 100 m hand (compass hand) and the 2.5 m hand
move left when other hand is adjusted.
4
Press button
for 2 seconds or more.
.