Date :
1.Minute hand
2.Holding ring for dial
3.Case
4.Hour wheel
Use the specified holding ring for dial to prevent rotation of the movement inside of the case in order to
stabilize the button operation.
Refer to the [Holding ring for dial] page instruction as to the shape and tolerance.
Use the metal case to prevent from the movement mal-function by static electricity.
The center wheel have a safety stopper structure to prevent the minute hand from being pressed too
much. However pay attention to the contact between hour hand and minute hand.
When set and remove the hour hand repeatedly, it may reduce the hand fixing torque because the
hour wheel is made by plastic.
To ensure the enough fixing torque, it isn't recommended to re-assemble the hour hand more than five
times.
Cal.
YM92A
Attention of casing part structure
31/Jul./'14
Rev. : 02
P.9
