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TECHNICAL GUIDE
The following description is only applicable to 7S caliber watches.
l
I. REMARKS ON DISASSEMBLING AND REASSEMBLING
qj Oscillating weight (with ball bearing)
The inside screw can be found in the inside ring
of the ball bearing. Use the big screwdriver to
screw sufficiently tight. When setting the oscil-
lating weight, align the hole of the first reduction
wheel with the hole of the balance cock, and then
set the oscillating weight by tightening the inside
screw of the inside ring of the ball bearing (refer
to the right figure).
ql Second reduction wheel and pinion
Lubricate the second reduction wheel and pinion
(refer to the right figure).
wl Barrel and train wheel bridge
Before setting the barrel and train wheel bridge, set the first reduction wheel and arbor,
pawl lever, and reduction wheel holder.
e; Reduction wheel holder
ea First reduction wheel
Liberally lubricate the first reduction wheel
(refer to the right figure).
How to disassemble
First reduction
wheel
Balance cock
How to assemble
6/8
Cal. 7S25B, 7S35B, 7S55B
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