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Seiko 6138A User Manual

Seiko 6138A
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6138AAubm
cChronograPh
Casing diameter
Height
Vibrations
per
hour
Automatic winding
(with
winding)
Calendar
(Day
& date,
Bilingual change-
over mechanism
for
day
indication,Rotary
type
instant
day
& date
setting device)
Chronograph
(Second,
hour hand
12
hour totalizer, minute
hand
-
30 minute
tot
alizer, a
ccumulated)
2) Features
o
An-advanced automatic winding
chron-
ograph
o
Easy-to-use,
regular
chronograph
mech-
anlsm
o
SEIKO's special
clutch mechanism
without
starting/stopping
errors
o
Simplified structure
and automatic
winding
by the stabilized
pawl
lever
system
.
Day
and date
instant
setting device
operated simply by revolving
the
crown
.
Bilingual change-over
mechanism for
day
indication
selectable by
preference
o
Auxiliary hand winding
device instant-
ly usable for measuring
time
o
External
devices
with
manv functions
3) Disassembly and
assembly
4)
Lubrication
Colored symbols
in
the
illustrated
figures indicate the types of
oil, its
quan-
tities to be applied,
and
lubricating
points.
Types of oil:
>Moebius
Synt-A-Lube
>Seiko
watch
oil S-4
Oil
quantity
? Extremely small
quantity
aD
Normal
quantity
a.-
Sufficient
quantity
t
Oil must
not
be applied.
Note: Unindicated
portions
do not
re-
quire
lubrication.
5)
Checking and adjusting
Refer to
6139A
Technical Guide
for
checking and adjusting
items
of
second
and
minute chronograph mechanism.
27.00rnIIl
7.90nlln
21,600
auxiliaryhand
Disassemble
Assembleby
Installation of the
automatic winding
nrechanism varies
as
comDared
with
con-
ventional watches.
The automatic
winding mechanism
should be installed
after setting the move-
ment with hands in the
case
for
adjusting
chronograph mechanism
and setting hands
works.
the watch
according to Figs.
reversing
the above:
Figs.
‑6138A‑1‑
Movement

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Seiko 6138A Specifications

General IconGeneral
BrandSeiko
Model6138A
CategoryWatch
LanguageEnglish

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