Epson YM04A Watch Movement Specification And Drawing page 11

Cal.
YM04A
1.Minute hand
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.
2.Holding ring for dial
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.
3.Case
Use the metal case to prevent from the movement mal-function by static electricity.
Attention of casing part structure
31/Jul./'14
Date :
Rev. : 02
P.9