Seiko 6138A Manual

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
D i s a s s e m b l e
① 卜 → ⑪
A s s e m b l e b y
① → ①
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.
‑ 6 1 3 8 A ‑ 1 ‑
M ov e me nt