Seiko 4R35A Quick start guide

PARTS LIST/TECHNICALGUIDE
Automatic Cal. 4R35A
[SPECIFICATIONS]
1/18
Item Cal. No. 4R35A
Driving system
Additional function
Crown operation
Loss/Gain
Regulation system
Number of jewels
Normal position
1st click position
2nd click position
Lift angle of the escapment
Vibration per hour
Power reserve
Time indication
• 3 hands (hour, minute and second hands)
• Date indication
• Diameter Outside: Ø 27.4 mm
Casing: Ø 27.0 mm
• Height: 5.25 mm
Movement size
Automatic winding with manual winding mechanism
• 3 hands (Hour, Minute and Small Second hands)
• Date indicator
• Date correction function
• Second hand stop function
Date setting (counterclockwise)
Time setting (Hour and minute)
Manual winding (clockwise only)
21,600 (6 beats per second)
Between + 45 and - 35 seconds
Mainspring
wind up status
Testing positions
(Isochronism
fault: T24-T0)
± 30 s/d
Measurement
(daily rate in
seconds:s/d)
Dial upward:
T0 (CH)
Daily rate worn
on the wrist at
t e m p e r a t u r e -
range between
5 °C and 35 °C)
S t a n d a r d r a t e
for measurement
6 o’clock
at the top
Dial upward :
T24 (CH)
9 o’clock
at the top
After 24 hours
from fully wind
up
Fully wind up
± 30 s/d
23 jewels
ETACHRON system
From fully wound to stoppage: Approximately 41 hours
52 °
Second hand stop
± 20 s/d ± 30 s/d

SPECIFICATIONS
2/18
Cal. 4R35A
FEATURES
CHARACTERISTICS OF A MECHANICAL WATCH
1. This mechanical watch operates using power obtained from a mainspring.
2. While loss/gain of a quartz watch is indicated by a monthly or annual rate, accuracy of a
mechanical watch is normally indicated by a daily rate (loss/gain per day).
3. Normal usage accuracy of a mechanical watch varies according to conditions of use (time
period that the watch is worn on the wrist, temperature environment, hand movement, and
winding state of the mainspring).
4. When the watch is affected by strong magnetism, it temporarily gains or loses time. If the
watch encounters a strong magnetic field, the parts of the watch may be magnetized. In this
case, repairs such as removal of magnetism are required.
SEIKO Automatic mechanical Cal. 4R35A is developed based on Cal. 7S series and Cal. 6R series design
with two specifications as follows:
1. Manual winding function.
2. Second hand stop function for time setting (2nd click position of the crown)

PARTS LIST Cal. 4R35A
3/18
Please refer to the following pages.
2DATE DISK GUARD SCREW A (3pcs.)
0012 354
4DATE DISK GUARD
0808 060
3DATE DISK GUARD SCREW B
0016 705
5DATE DISK
6DATE JUMPER
0810 030
7GUARD SCREW OF
INTERMEDIATE WHEEL FOR
DATE SETTING
0012 354
8GUARD OF INTERMEDIATE
WHEEL FOR DATE SETTING
0836 010
9INTERMEDIATE WHEEL
FOR DATE SETTING E
0962 025
q; INTERMEDIATE WHEEL
FOR DATE SETTING C
0962 024
qa DATE SETTING WHEEL
0737 300
qg MINUTE WHEEL
0261 006
qj CLUTCH WHEEL
0282 040
qk WINDING PINION
0283 020
ql CALENDAR
CORRECTOR 1ST
INTERMEDIATE
WHEEL 0962 164
qh DIAL HOLDING SPACER
4408 ***
qsHOUR WHEEL
0271 483
qd DATE DRIVING WHEEL
0802 300
qf
INTERMDIATE
WHEEL FOR
DATE DRIVING
0817 300
CANNON PINION
0225 005
(Disassemble after
CENTERWHEEL)
td
qj
qk
ql
Lubricating: Types of oil
AO-3 (Moevius A)
SEIKO Watch Oil S-6
S-6
S-6

Cal. 4R35A
PARTS LIST
4/18
Please refer to the following pages.
1OSCILLATING WEIGHT 0509***
wf-4 STUD SUPPORT
0345021
wf-1 BALANCE COCK 0171116
wf-2
REGULATOR
0341020
wf-3 REGULATOR PIN 0033364
wj PALLET BRIDGE 0161300
wk PALLET FORK 0301009
wl AUTOMATIC TRAIN
BRIDGE SCREW (2 PCS.)
0012354
e; AUTOMATIC TRAIN
BRIDGE 0191032
ea 2ND REDUCTION WHEEL
0514010
es RACHET WHEEL SCREW
0012919
ed RACHET WHEEL
0285051
wf BALANCE COCK WITH
REGULATOR
0171353
wd BALANCE COCK SCREW
0012420
wa SHOCK ABSORBING CAP
JEWEL
0011220
ws HOLE JEWEL FRAME FOR
SHOCK ABSORBER 0014295
wg BALANCE COMPLETE
0310046
wh PALLET BRIDGE SCREW
0012354
w; SHOCK ABSORBING SPRING
0014577
Lubricating: Types of oil
AO-3 (Moevius A)
SEIKO Watch Oil S-6

PARTS LIST Cal. 4R35A
5/18
Please refer to the following pages.
ef BARREL AND TRAIN WHEEL BRIDGE SCREW (3PCS)
0012420
r; LOWER BRIDGE FOR CROWN
WHEEL AND REDUCTION WHEEL
0436164
ej 1ST
REDUCTION
WHEEL
0511010 eh BARREL AND TRAIN
WHEEL BRIDGE 0014348
el LOWER BRIDGE FOR CROWN WHEEL
AND REDUCTION WHEEL SCREW
0012354
eg SLIDING CROWN WHEEL SPRING 0363156
ra 1ST REDUCTION
WHEEL HOLDER
0836020
ek PAWL LEVER
0831077
rj THIRD WHEEL 0231070
rk CLICK 0381004
rl BARREL COMPLETE 0201267
rs HOLD SPRING FOR ESCAPE WHEEL
0015703
rd CAP JEWEL FOR ESCAPE WHEEL
0011221
rf HOLD SPRING FOR THIRD WHEEL
0015703
rg CENTER WHEEL BRIDGE SCREW
0012354
rh CENTER WHEEL BRIDGE
0122302
rs
rd
rf
rg
Lubricating: Types of oil
AO-3 (Moevius A)
SEIKO Watch Oil S-6

Cal. 4R35A
PARTS LIST
6/18
Please refer to the following pages.
t; CENTER WHEEL BRIDGE SCREW
0012354
tf CENTER WHEEL
(Disassemble after CANNON PINION)
ta CENTER WHEEL BRIDGE
0122302
ts ESCAPE WHEEL
0251300
tg SETTING LEVER JUMPER SCREW
(2PCS.) 0012168
tj YOKE 0384061
tk SETTING LEVER 0383060
tl STOP LEVER 0601010
th SETTING LEVER JUMPER
0388177
yf MAIN PLATE 0100493
y; CLUTCH WHEEL 0282040
ya WINDING PINION 0283020
ys CALENDAR CORRECTOR 1ST
INTERMEDIATE WHEEL
0962164
yd WINDING STEM 0351***
Lubricating: Types of oil
AO-3 (Moevius A)
SEIKO Watch Oil S-6

PARTS LIST Cal. 4R35A
7/18
Please refer to the following pages.
Following parts are determined based on the design of watches, such as hands height, dial color,
and design of cases. Please refer to the SEIKO WATCH PARTS CATALOGUE in order to choose
corresponding parts.
1OSCILLATING WEIGHT
The type of OSCILLATING WEIGHT is determined based on the design of cases. Check the case
number and refer to the "SEIKO WATCH PARTS CATALOGUE" to choose corresponding OSCILLATING
WEIGHT.
w; WINDING STEM 0351***
* For screw down crown models, the stem is assembled to the crown and is not available
separatelly.
qh
●How to find the correct parts, if not determined by 4 digit caliber number
DIAL HOLDING SPACER
Distinction point
4408 170 4408 171
DIAL HOLDING SPACER of diver’s wach has a distinction point as the above image.
● DATE DISK
The type of DATE DISK is determined based on the design of cases. Check the case number and refer
to the "SEIKO WATCH PARTS CATALOGUE" to choose corresponding DATE DISK.

Cal. 4R35A
PARTS LIST
8/18
Please refer to the following pages.
0012 919
0012 354
e; RATCHET WHEEL SCREW
ek LOWER BRIDGE FOR CROWN WHEEL AND REDUCTION WHEEL
SCREW
rg CENTER WHEEL BRIDGE SCREW
PALLET COCK SCREW (2 pcs)
AUTOMATIC TRAIN WHEEL SCREW (2 pcs)
Parts code Parts name
rk SETTING LEVER JUMPER SCREW (2 pcs)
es BARREL AND TRAIN WHEEL BRIDGE SCREW (3 pcs)
wa BALANCE COCK SCREW
CASING CLAMP SCREW (2 pcs)
0012 168
0012 420
0012 067
CROSS-SECTION VIEW OF THE SCREW PARTS
0016 705
3DATE DISK GUARD SCREW B

PARTS LIST Cal. 4R35A
9/18
Please refer to the following pages.
●Tools and consumables required for disassembling/reassembling
• Movement holder
UNIVERSAL MOVEMENT HOLDER
(S-682)
•Watch oils
SEIKO watch grease S-6 and S-4. watch oil AO-3 (or Moebius A)
S-6 AO-3
S-4

TECHNICAL GUIDE Cal. 4R35A
10/18
l SETTING MECHANISM
Crown position: 0 position
Push the SETTING LEVER gently (refer to the picture on
the right) in order to disengage it from the SETTING
STEM. Then pull out the crown with stem completely.
Push here
ql CALENDAR CORRECTOR 1ST INTERMEDIATE WHEEL
qk WINDING PINION
qj CLUTCH WHEEL
REMARKS ON DISASSEMBLING AND REASSEMBLING THE MOVEMENT
lHOW TO REMOVE THE SETTING STEM BEFORE DISMANTLING THE MOVEMENT
t; YOKE
ta SETTING LEVER
tl SETTING LEVER JUMPER