Seiko 7N35C, 7N36C Technical Manual
1
ø24.0mm
21.5mm between 6 o’clock and 12 o’clock sides
21.3mm between 3 o’clock and 9 o’clock sides
ø23.3mm
21.5mm between 6 o’clock and 12 o’clock sides
21.3mm between 3 o’clock and 9 o’clock sides
Cal. 7N35C
Cal. 7N36C
PARTS CATALOGUE / TECHNICAL GUIDE
[SPECIFICATIONS]
7N35C
Cal. No.
Item
Movement
7N36C
The illustrations refer to Cal. 7N36C.
(x 1.0)
Outside diameter
Casing diameter
Height 2.78mm
Movement size
Time indication 3 hands
Driving system Step motor (Load compensated driving pulse type)
Additional mechanism
Date calendar
_
Day calendar
_
Jewels 1 jewel
SEIKO SR920SW, Maxell SR920SW, SONY SR920SW,
Matsushita SR920SW, EVEREADY 371
Battery life is approximately 4 years.
Voltage: 1.55V
Battery
Measuring gate by quartz tester
Use 10-second gate.
Regulation system Nil
Monthly rate at normal temperature range: less than 15 secondsLoss/gain
Battery life indicator
Electronic circuit reset switch
Train wheel setting device
Instant setting device
for day calendar
Instant setting device for date calendar
2
Cal. 7N35C, 7N36C
PARTS CATALOGUE
Ex. : Cal. 7N36C
➡➡
Please see the remarks on the following pages.
Disassembling procedures Figs. : 1 → 37
Reassembling procedures Figs. : 37 → 1
Lubricating: Types of oil Oil quantity
Moebius A Normal quantity
0022 247
• Battery connection
(+) screw (2 pcs.)
• Coil block screw (1 pc.)
15 0022 247
Battery connection
(+) screw
1 Hour, minute and
second hands
13 0802 890
Date driving wheel
11 0962 891
Second intermediate wheel
for calendar correction
12 Hour wheel
10 0737 891
Date corrector setting wheel
9 0810 890
Date jumper
8 Date dial
7 0808 890
Date dial guard
6 0989 890
(only for Cal. 7N36C)
Intermediate wheel for
day correction
5 Day star with dial disk
(only for Cal. 7N36C)
4 0963 230
(only for Cal. 7N36C)
Snap for day star
with dial disk
3 0419 735
Dial washer
2 Dial
14 Battery
(See the front page.)
24 0281 904
Setting wheel
23 0261 904
Minute wheel
22 4146 886
Step rotor
21 0701 904
Fifth wheel and pinion
20 0231 904
Third wheel and pinion
19 Fourth wheel and pinion
18 0125 923
Train wheel bridge
17 4000 634
Circuit block
16 Battery connection (+)
25 0391 890
Train wheel setting lever
26 0022 247
Coil block screw
27 4002 923
Coil block
28 4239 892
Rotor stator
29 0383 891
Setting lever
30 0384 890
Yoke
31 Winding stem
32 0282 890
Clutch wheel
33 0962 890
First intermediate wheel
for calendar correction
34 Center wheel and pinion
35 4216 904
Insulator for battery
connection C
36 4270 904
Battery connection (–)
37 Main plate
3
Cal. 7N35C, 7N36C
Remarks:
PARTS CATALOGUE
12 Hour wheel
19 Fourth wheel and pinion
34 Center wheel and pinion
37 Main plate
Height
Numeral for
discrimination
Discrimi-
nation
Standard type
2
Dial MovementPrinted on
Ex) Standard type
Ex) Standard type
The numeral is printed at the
right end.
The numeral is printed below
the calibre number.
Printed position
• Discrimination of the hand installation height
Cal. 7N series watches have numerals printed on the dial and the movement to indicate the
hand installation heights. When repairing, refer to the table below.
Combination:
* The hand installation heights can be known from the shape of the following parts. Refer to
the table below.
Hour wheel
0271 934 0100 9430241 9340221 939
2
Main plate
(Center pipe)
Fourth wheel
and pinion
Center wheel
and pinion
Numeral for
discrimination
J
A
P
A
N
7
N
3
6
-
6
A
2
0
R
2
Loading...