Seiko YT57B - Fourth Wheel and Pinion; Third Wheel and Pinion; Fifth Wheel and Pinion; Step Rotor

9
TECHNICAL GUIDE
Cal. YT57B
35 Fourth wheel and pinion
36 Third wheel and pinion
37 Fifth wheel and pinion
38 Step rotor
39 Minute wheel
40 Setting wheel
• Setting position and lubricating
Refer to the illustrations below for the setting position and lubrication of the respective wheels.
Lubricating: : Moebius A : Moebius F
Fifth wheel
and pinion
Step rotor
Setting wheel
Fourth wheel
and pinion
Minute wheel
Third wheel
and pinion
Center wheel
and pinion
Step rotor
Fifth wheel
and pinion
Fourth wheel
and pinion
Third wheel
and pinion
46 Center wheel and pinion
Note: Be sure to observe the position, type of oil
and quantity of the lubrication specified in
the illustration.
Minute wheel
Setting wheel