11. Setting position of oscillating weight
Note:
The procedure is necessary to maximize the performance of automatic winding.
Before assembling oscillating weight.
Match the center of oscillating weight and winding stem.
Set the hole of first reduction whell gear on the imaginary line toward balance bridge guide pin.
12. To remove winding stem
1) Set winding stem to normal position.
2) Pull out winding stem while pushing “A”.
Enlarged
View
Balance bridge guide pin
First reduction wheel gear
Setting lever
Winding stem
13. To wind up the mainspring
The mainspring would be fully wounded up by turning Ratchet wheel screw 8 times clockwise.
• Manual winding ... Rotate crown clockwise at normal position by min 55 times. (Equal to ratchet wheel screw 8 times)
• Screwdriver winding ... Turn ratchet wheel screw 8 times clockwise.
[ Manual winding ]
[ Screwdriver winding ]
Ratchet wheel screw
Screwdriver
Ratchet wheel
A
TECHNICAL GUIDE
Cal. 8R48A/8R49A
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