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TECHNICAL GUIDE
Regulating device by micro-positioning regulator pin
The accuracy of the watch can be adjusted by
moving the lever attached to the regulator device
as shown in the illustration to extend or reduce
the clearance between the regulator key and
regulator pin. After replacing the balance complete
with stud, be sure to adjust the accuracy using the
lever. Except in such a case, however, do not
move the lever, as the accuracy of the watch has
been adjusted at the factory before shipment.
HOW TO OPERATE
Dual time indication
(Ex.:When you travel abroad)
Time of the place you visit
Time back home
(24-hour hand)
1) Normal position
Turning clockwise:
Winding the main spring
Turning counterclockwise:
Will not work
14
Position of the day hand during hour hand adjustment
If the crown for hour hand adjustment is left at the first click
position, the hour hand will not advance properly. To prevent
this, the day hand points outside the day dial while the crown
is at the first click position, to signal the crown position. After
the hour hand adjustment is completed, make sure that the
crown is pushed back in to the normal position, checking that
the day hand points to a day of the week.
2) First click position
(for calendar setting)
Turning clockwise:
Winding the main spring and changing the day
of the week (Two clicks change the day)
(The day will not change between 21:30 and
2:00.)
Turning counterclockwise:
Changing the date
(The date will not change between 21:10 and
1:20.)
To extend the clearance:
Lever
Crown for hour hand adjustment
• Normal position
Will not work
• First click position
Turning clockwise:
Advances the hour hand
Turning counterclockwise:
Moves back the hour hand
2) First click position
1) Normal position
3) Second click position
(for time setting)
Turning clockwise:
Moves back the minute and 24 hour
hands
(Will not move back the hands around
12:00 midnight on Monday)
Turning counterclockwise:
Advancing the minute and 24-hour
hands
Cal. 4S77A
To reduce the clearance:
Cal. 4S77A
3) Second click position
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