Seiko 7B24 Manual page 80

Set the time zone by pressing the button to move the
7
secondhand(selectingatransmittingstation).
Setthetimezoneoftheareawherethewatchisused.
1
※ T hebuttonscan
bepressedcontinuously.
Otherareas:Listofmajortimezonesaroundtheworld→page108
160
P r e s s i n g  t h e  b u t t o n
once moves the second
handeveryonesecond.
Japan;the9
secondposition
China;the8
secondposition