Seiko 7D Series Owner's manual

7D** Technical Instruction
No.1
No. PROSESS ILLUSTRATIONS AND SPECIAL INSTRUCTIONS
Assembling the
switching unit
91 Set the main plate.
↓
90 Set the lead pin for
RZ1.
↓
89 Set the hour and
minute stator.
↓
88 Set the second
stator.
↓
87 Set the generating
stator.
↓
86
Set the
rechargeable
battery connection
(+).
↓
85
Set the 1st
intermediate wheel
for calendar
corrector.
↓
84 Set the clutch
wheel.
<90> Set the lead pin for RZ1.
*Ensure that the lead pin for RZ1 is tightly
mounted without any clearance.
<89> Set the hour and minute
stator.
* When mounting, take care not to
distort or deform the hour and
minute stator.
(To prevent deterioration of the
motor.)
<88> Set the second stator.
* When mounting, take care not to distort
or deform the second stator.
(To prevent deterioration of the motor)
<87> Set the generating stator.
*Distinction from the 5J-series
counterpart
See the red-circled parts, which
are shaped to identify the
7J-series generating stator.
*When mounting, take care not to
distort or deform the generating
stator. (To prevent deterioration
of electric power generation)
<86> Set the rechargeable battery
connection (+).
<85> Set the 1st intermediate wheel
for calendar corrector.
<84> Set the clutch wheel.
<91> Set the main plate.

7D** Technical Instruction
No.2
No. PROSESS ILLUSTRATIONS AND SPECIAL INSTRUCTIONS
Assembling the
switching unit
83 Set and lubricate
the winding stem.
↓
82
Set and lubricate
the center wheel &
pinion.
↓
81 Set the train wheel
setting lever.
↓
80 Set the yoke and
hook the arm of it.
↓
Lubricating points of the
switching unit-1
-Stem of the setting
lever
-Point of contact
between the yoke
and clutch wheel
-Lower pivots of the
wheels
(4#, 3#, 50#, 75#)
-Guiding slit of the
train wheel setting
lever
Lubricating points of the switching unit-1
1. Point of contact between the yoke and
clutch wheel
*Type of oil, oil quantity: A0-3III-1 (To prevent
parts from wearing)
2. Axes of the setting lever
*Type of oil, oil quantity: A0-3II-1
(To prevent parts from wearing)
3. Guiding slit of the train wheel setting lever
*Type of oil, oil quantity: A0-3I-2
(To prevent parts from wearing)
4. Lower pivots of the wheels
(4#, 3#, 50#, 75#)
*Type of oil, oil quantity: A0-3II-1
(To maintain good performance)
<81> Set the train wheel setting lever.
<83> Set and lubricate the winding stem.
*Type of oil, oil quantity: A0-3 Lubricate the
entire profile of the winding stem.
(To prevent parts from wearing)
*Securely install the winding stem, giving
it gentle rotations so that the flat face of
the winding stem will be engaged with
both the clutch wheel and the 1st
intermediate wheel for calendar corrector.
<82> Set and lubricate the center
wheel & pinion.
* Lubricating point: convex part
(Refer to the illustration below.)
*Type of oil, oil quantity: A0-3II-1
(To prevent parts from wearing)
*Lubricating point: inner edge of
the ring (Refer to the illustration
below.)
*Type of oil, oil quantity: A0-3II-1
(To prevent parts from wearing)
<80> Set the yoke and hook the
arm of it.
Securely set the arm of the yoke
inside the pin, taking care not to
deform or damage the yoke.
1
3
2
4#
3#
75#
50#
Lubricating
area

7D** Technical Instruction
No.3
No. PROSESS ILLUSTRATIONS AND SPECIAL INSTRUCTIONS
79 Set the setting
lever.
↓
78 Set the setting lever
spring.
↓
77 Tighten the setting
lever spring. （33#）
↓
Hook the arm of the setting
lever.
↓
Lubricating points of the
switching unit-2
-Point of
engagement
between the yoke
and setting lever
-Point of contact
between the yoke
and setting lever
-Axis of the setting
wheel
Lubricating points of the switching unit-2
1. Point of engagement between the yoke and
setting lever
*Type of oil, oil quantity: A0-3II-1
(To prevent parts from wearing)
2. Point of contact between the yoke and
setting lever
*Type of oil, oil quantity: A0-3II-1
(To prevent parts from wearing)
3. Axis of the setting wheel
*Type of oil, oil quantity: A0-3II-1
(To prevent parts from wearing)
<78> Set the setting lever
spring.
Hook the arm of the setting lever.
<79> Set the setting lever.
*Before setting the setting lever,
put the train wheel setting
lever inside the frame of the
main plate (as illustrated in
blue). This will make the
engagement between the pin
of the setting lever and the
guiding slit of the train wheel
setting lever easier.
<77> Tighten the setting lever spring.
3
1
2

7D** Technical Instruction
No.4
No. PROSESS ILLUSTRATIONS AND SPECIAL INSTRUCTIONS
Assembling the wheels
Lubricate the lower
pivots of the
wheels.
↓
76
Set the spacer for
center wheel and
pinion.
↓
75
Set and lubricate
the minute wheel &
pinion.
↓
74
Set the
intermediate minute
wheel.
↓
73 Set the setting
wheel.
↓
72 Set the hour and
minute rotor.
↓
71 Set the second
rotor.
↓
70 Set the generating
rotor.
<72> Set the hour and minute rotor.
*Make sure to set the correct rotor.
(The hour and minute rotor and the
second rotor are different in their
specification.)
<74> Set the intermediate minute
wheel.
*Make sure the intermediate minute
wheel is put in the correct direction.
(See the illustration below.)
Lubricate the lower pivots of the
wheels.
*Type of oil, oil quantity: A0-2II-1
(To maintain good performance)
<73> Set the setting wheel.
*The setting wheel is reversible.
<76> Set the spacer for center
wheel and pinion.
*Firmly press down the point of
engagement to securely set it
without any clearance.
76#
5#
<75> Set and lubricate the minute wheel
& pinion.
*Type of oil, oil quantity: A0-3II-1
(To prevent parts from wearing)
<70> Set the generating rotor.
<71> Set the second rotor.
* Make sure to set the correct rotor. (The second rotor and the
hour and minute rotor are different in their specification.)
Hour and
minute rotor
Second
rotor
Distinction between the hour and
minute rotor and the second rotor

7D** Technical Instruction
No.5
No. PROSESS ILLUSTRATIONS AND SPECIAL INSTRUCTIONS
69 Set the 3rd wheel &
pinion.
↓
68 Set the 4th wheel &
pinion.
↓
67
Set the
intermediate
second wheel.
↓
66
Lubricate the
second wheel &
pinion.
↓
65
Set the train wheel
bridge and check
the pivot hole.
↓
64 Tighten the train
wheel bridge screw.
<66> Lubricate the second wheel & pinion.
*Lubricating points: convex part
(Refer to the illustration below.)
*Type of oil, oil quantity: A0-3II-1
(To prevent parts from wearing)
<69> Set the 3rd wheel & pinion.
* The 3rd wheel & pinion has three holes for distinction
from the 5J2-series counterpart.
<68> Set the 4th wheel & pinion.
*The 4th wheel & pinion has four holes for distinction from the
5J2- series counterpart.
<67> Set the intermediate second wheel.
<64> Tighten the train wheel bridge
screw.
<65> Set the train wheel bridge
and check the pivot hole.
17#
18#
Lubricate with an appropriate
amount of oil, as excessive
lubrication may cause the
second hand to wiggle while
the watch resumes from
power save mode.

7D** Technical Instruction
No.6
No. PROSESS ILLUSTRATIONS AND SPECIAL INSTRUCTIONS
Lubricate the upper pivots
of the wheels.
(5#, 76#, 4#, 3#, 74#, 75#,
Tips of the teeth of the
pinion of generating rotor
66#)
↓
63 Set the hour and
minute coil block.
↓
62 Set the second coil
block.
↓
61 Set the generating
coil block.
↓
Check each coil
block resistance.
Lubricate the upper pivots of the wheels.
5#, 76#
*Type of oil, oil quantity: A0-2II-1
(To maintain good performance)
◆4#, 3#, 74#, 75#
*Type of oil, oil quantity: A0-3II-1
(To maintain good performance)
◆Tips of the teeth of the pinion of the generating
rotor (66#)
*Type of oil, oil quantity: A0-3II-2
(To prevent parts from wearing)
<62> Set the second coil block.
*When mounting the second coil block, take care
not to deform or deform the coil block core.
(To prevent deterioration of the motor)
<61> Set the generating coil block.
*When mounting the generating coil
block, take care not to deform or
deform the coil block core. (To prevent
deterioration of the motor)
<63> Set the hour and minute coil block.
*When mounting the hour and minute coil block, take
care not to distort or deform the coil block core.
(To prevent deterioration of the motor)
5#
4#
3#
76#
75#
74#
66#
Check each coil block resistance.
*Measure the coil block resistance after
securely installing each coil block to the
movement.
Hour and minute coil block
Coil block for driving: 1.00kΩ–1.25kΩ
Coil block for detection: 270Ω– 330Ω
Second coil block
2.00kΩ– 2.45kΩ
Generating coil block
360Ω– 420Ω
Pattern for checking the coil for detection
Pattern for checking the coil for driving

7D** Technical Instruction
No.7
No. PROSESS ILLUSTRATIONS AND SPECIAL INSTRUCTIONS
Assembling the circuit
60 Set the insulator for
circuit block.
↓
Check the current
consumption for
the circuit block.
↓
59 Set the circuit
block.
↓
58
Set and lubricate
the intermediate
wheel for
generating rotor.
<58> Set and lubricate the intermediate
wheel for generating rotor.
Position (1) shown in the illustration below
*Type of oil, oil quantity: A0-3II-2 (To prevent
parts from wearing)
Position (2) shown in the illustration below
*Type of oil, oil quantity: A0-3II-1 (To prevent
parts from wearing)
*Distinction between the 7D-series
intermediate wheel for generating rotor and
the 5J-series counterpart
At the position shown by the red arrow, the
7D-series intermediate wheel for generating
rotor has a groove, while the 5J-series
counterpart does not.
<60> Set the insulator for circuit block.
<59> Set the circuit block.
*Firmly press down the points of engagement to securely set it in position.
Positioning guide tubes : 121#, 124# (green-circled in the illustration.)
Points of engagement : 109#, 124#, 125#, 126#, 142#, 143#, 144# (red-circled in the illustration)
121#
124#
126#
142#
143#
144#
125#
122#
109#
１
１
２

7D** Technical Instruction
No.8
No. PROSESS ILLUSTRATIONS AND SPECIAL INSTRUCTIONS
57
Set the oscillating
weight bridge and
check the pivot
hole.
↓
56 Set the circuit block
cover C.
↓
55
Tighten the circuit
block cover C
screws. (28#, 101#,
103#, 401#)
↓
54 Set the circuit block
cover D.
<57> Set the oscillating weight
bridge and check the pivot
hole.
<56> Set the circuit block cover C.
*Securely set the hooking portions.
(three positions)
<55> Tighten the circuit block cover
C screws.
(28#, 101#, 103#, 401#)
28#
103#
101#
401#
<54> Set the circuit block cover D.

7D** Technical Instruction
No.9
No. PROSESS ILLUSTRATIONS AND SPECIAL INSTRUCTIONS
53 Set the circuit block
cover A.
52
Tighten the circuit
block cover A
screws. (25#, 26#,
27#, 36#)
<53> Set the circuit block cover A.
<52> Tighten the circuit block cover A screws.
(25#, 26#, 27#, 36#)
25#
26#
27#
36#

7D** Technical Instruction
No.10
No. PROSESS ILLUSTRATIONS AND SPECIAL INSTRUCTIONS
Lubricate the upper
pivots of the
wheels. (66#, 65#,
bearings of the
wheels)
↓
Measure the
current
consumption.
Lubricate the upper pivots of the wheels.
1. 66# upper pivot
*Type of oil, oil quantity: A0-3II-2 (To prevent parts
from wearing)
2. 65# upper pivot
*Type of oil, oil quantity: A0-3II-2 (To prevent parts
from wearing)
3. 65# pinion
*Type of oil, oil quantity: A0-3II-3 (To prevent parts
from wearing)
4. Bearings of the wheels
*Type of oil, oil quantity: A0-3II-3 (To prevent parts
from wearing)
Note) Additionally, you may lubricate the gap between
the inner ring axis and the outer ring axis.
1
2
3
4
65#
66#