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TECHNICAL GUIDE
5Y89A
9 Date driving wheel , 12 24-hour hand wheel ~ 17 Intermediate date wheel,
20 Calendar corrector setting wheel,
How to install the calendar wheels for the Cal. 5Y89A
Refer to the illustration below to install the calendar wheels for the Cal. 5Y89A.
19 Hour wheel guard is omitted from the illustration.
Set the jumpers to mesh with the gear teeth.
13 Day driving wheel
14 Day wheel
Day jumper
• Set the Date driving wheel so that its claw a is in the Area A on the main plate.
• Set the Day driving wheel so that its claw b is in the Area B on the main plate.
Area A
6
21 Intermediate wheel for calendar correction C, 24 Hour wheel
Area B
Area A
12 24-hour hand wheel
Claw a
Date driving wheel
20 Calendar corrector setting wheel
16 Date corrector setting wheel
21 Intermediate wheel for
24 Hour wheel
9 Date driving wheel
Area B
Day driving wheel
17 Intermediate date
wheel
Date jumper
15 Date star
calendar correction C
Claw b
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