Seiko V157A - Function Check; Function Check: Setting Mechanism; Function Check: Calendar Correction; Function Check: Second Hand Stop

TECHNICAL GUIDE
Cal. V157A/V158A
17/18
l FUNCTION CHECK
Operation Function Checkpoint
Pull out the
crown to the 2nd
click and push
it back in to the
normal position.
Repeat the same
several times.
Setting mechanism
switching the func-
tion of the time set-
ting.
Make sure that it has
a click at each posi-
tion and the stem is
not pulled off.
Pull out the
crown to the 1st
click, then turn it
clockwise.
Calendar mechanism
- correcting the day.
Ma ke sur e that the
day changes smooth-
ly.
Pull out the
crown to the 1st
click, then turn it
Calendar mechanism
- correcting the date.
Ma ke sur e that the
date changes smooth-
ly.
Sec ond han d stop
function.
Ma ke sur e that the
sec ond hand stops
when the c r own i s
pulled out to the 2nd
click.
Set ting me chanism
- hour a n d m i n u t e
hand setting.
Make sure that the
hour and minute
hands move
smoothly (without
touching each other
or touching the
surface of the dial or
inside of the glass).
Hands installation.
calendar mechanism
- date change.
Ma ke sur e that the
date changes when
the hour and minute
han ds pas s around
midnight.
MON
MON
6
Pull out the
crown to the
2nd click, then
turn it.