Citizen CC4054-68L Instruction Manual page 76

Information on satellite signal reception
74
1
Change the mode to [ SET ] and pull the crown out to
position 2 .
The second hand stops.
Press and hold upper right button Ⓑ for 2 seconds or
2
more.
Using the "0:00:00" position as the starting point, the minute
and second hands indicate the leap second setting.
When the leap second setting is "-37
seconds"
The hands point to "0 minute 37
seconds".
When the leap second setting is "-65
seconds"
The hands point to "1 minute 5
seconds".