Calendar Mechanism - Seiko 6138A Manual

6f 3BA Calendar Mechanism
(Installing the second hand and chronograph
minute and hour hands)
1. At
the fly-back position, tentatively set
the hands on the "0" position.
2. Then repeat fly-back operation to ensure
the "0"
position. If the hands fail to
resume correct position, adjust the hands
while depressin g Ihe fl y - bac k b ut t on.
However,
since the fly-back lever of the
chronograph hour hand has a springing charac-
teristic, it prevents the hand from rotating
while the hammer button is depressed. Con-
sequently, reinstall the chronograph
hour
hand so that it coincides with "0" position.
3. Completely push in the hands at the point
where they correctly indicate the "0"
position.
NOTE:
The second hand axle is cut as
shown in the diagram. If the
second hand is tumed by force
after completely depressing it to
the bottom, the hand will loosen.
S E I K O p l o v i d e s a h a n d y M o v e m e n t H o l d e r
S‑500 to faclitate hand‐ setting
Second hand
During fly-back operation clearance between
the minute hanl
and the second hand will
be slightly changed since the second hand
axle is pressed in one direction. Consequently,
install the minute hand
and the second
hand by taking more clearance as compared
MN h祠 ①
①
①
①
Ｄ⁝ ａ ︲
ap for day star with'dial disk @
After assembling the snap for day star -
with dial disft, pull out the crown to the
④
Groove for
o pe ra trn g
ヽ
又
Gr oo ve for
win d ing stem
When disassembling and assem-
bling the date dinl guard, per-
form carefully to avoid breaking
r
the chronograph hour hand pin. (*.2)
NOTE: However, since this movement holder is origi
nally for 6139A, the movement is slightly
raised when using this holder for 6138,{. If
the dowels on the holder are scraped off, it is
impossible to use for 6139A.
' D at e d i al gu a rd scr e w
D at e d i al gu a r d -
④
④
C h r o nog r ap h m i nu t e ha nd
p h ho ur h and
If dial feet are bent, positions of
the center
hole of
the dial and the chronograph
hour and minute hand holes will become
hrst click and tum the crown to right
and left to check whether or not day
O NEVER lubricate the axle of the
intermediate wheel for day conection.@
O After assembling the intermediate
半 七 鮪 富 1聯
＼ D聟 m"ぃ
C rews13
ヽ ̲̲̲̲助
um"r②
監 券 剃 漂 麟 鍛 聯 ③
‑ 6 1 3 8 A ‑ 3 ‑
￨で ミ ヽ 11' ' フ
卜 / ' / 1 1 ふ
"
一
一 一
一 "
し
へ ´
¨
囲 screw釧 2 ● ①