Seiko 7N32C - Technical Guide - Winding Stem and Value Checking; Winding Stem Installation; Value Checking

8
Cal. 7N32C, 7N33C, 7N39C
TECHNICAL GUIDE
Refer to the illustration at right.
24 Train wheel setting lever
28 Setting lever
29 Yoke
• Setting position
Setting lever
Yoke
Train wheel setting lever
Note: Take care not to deform the spring portion of the yoke.
30 Winding stem
The first intermediate wheel for calendar correction (Cal.
7N33C) or the date corrector wheel (Cal. 7N32C and 7N39C)
has some elasticity in the contact with the winding stem
so that it can be easily fixed.
Push in the winding stem straight toward the center of
the main plate.
Winding stemClutch wheel
First intermediate wheel for calendar
correction (Cal. 7N33C)/
Date corrector wheel (Cal. 7N32C, 7N39C)
III. VALUE CHECKING
• Coil block resistance
1.18KΩ ~ 1.58KΩ
• Current consumption
For the whole movement : less than 1.20µA
For the circuit block alone : less than 0.28µA
Remarks: When the current consumption exceeds the standard value for the whole movement but within
the standard value range for the circuit block alone, the watch is generating the driving pulse
for compensating for the heavy load that may be applied to the gear train, etc.
In this case, overhaul and clean the movement parts and then measure current consumption
for the whole movement again.
95-3 Printed in Japan