Timex 52 User manual

TIMEX
model
52
Day-Date
watch
13~
li~
.
30
.5
mm
1.20
in
.
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the TIMEX Model 52 Movement
The Timex Model 52 is a 13Y2 ligrie electronic day-date movement. The
Model 52 movement is similar to the Model 50 movement except that a
calendar and a day mechanism has been added. The power to drive the
movement
is supplied by a miniature energy cell. Power from the energy
cell drives the balance. The balance drives the time train which, in turn
rotates the hands.
The
day can be changed either forward or backward by pulling the
crown
out to the set position and turning through 24 hours in either
direction. The date can be changed only in the increasing direction by
first pushing the crown into the run position and then turning the crown
in a counterclockwise direction.The
date will increase one number for each
half turn of the crown. Do not attempt to turn the crown clockwise when
in the run position. Basic servicing techniques
are similar to those used
for the Model 50 except that all hands must be removed prior to
removing the dial.
52.1

52.2
the
TIMEX
Model
52
Movement
(exploded
view)
I
I
~
8,52/1
~
851'
~
850
~
I
2566/1-
~
-----1
I
~
4WI
--i
2572
145
DIAL
REST
206
CENTER
WHEEL
2561/1
DAY
FRAME
ASS'Y.
401/1
CROWN
AND
STEM
ASS'Y.
498/1
HOUR
WHEEL
WASHER
751
DIAL
850
HOUR
HAND
851
MINUTE
HAND
852/1
SWEEP
SECOND
HAND
2556
DATE
WHEEL
2557/1
DATE
RING
2558
HOUR
WHEEL
256611
DATE
SET
DISC
ASS'Y.
2572
DATE
SET
DETENT
SPRING
2573
DAY
DETENT
SPRING
2575
DATE
LEVER
2576
DATE
CLICK
SPRING
2650
DATE
WHEEL STUD

Disassembly
of
Movement
(model
52)
The
first step in disassembling the movement
is
to
remove in
order
(as
described on
page
50.3
and
50.4
of
the Timex Service
Manual)
the
case back,
energy
cell, movement cover, crown
and
stem assembly (be
careful
to
pick
out
the
Date
Set Disc Assembly
and
the
Date
Set Disc
Spring
after
the Crown
and
Stem Assembly
is
removed-Figure
1
).
Turn
the watch
over
and
with
a crystal
lift
remove the crystal
from
the bezel,
lift
out
the
reflector
ring
and
then remove the
dial
and
movement assem-
bly.
Note
the position
of
the movement locating tabs inside the bezel
to make reassembly easier.
DATE
SET
DETENT
SPRING
FIG.
I
52.3

52.4
Disassembly of Movement (model52)
DAY DETENT SPRING
2573
DATE LEVER
2576
DATE CLICK SPRING
2576
Remove all hands from assembly.
Turn the movement
over and while
holding the dial in place, bend the
four dial legs up just enough to
permit removal of the dial from the
movement. Turn the movement over
TAB so the dial is up and carefully lift
off the dial. Note the position of
the loose parts under the dial (see
figures 2, 3 and 4, and the ex-
DATE CLICK ploded view on page 52.2) then
SPRING remove in order :
Hour Wheel Washer
Day Frame Assembly
Date Ring
Day Detent Spring
Date Wheel Stud
Date Wheel
Hour Wheel
Center Wheel
It is not necessary to remove the
Date Lever
and the Date Detent
FIG. 3 Spring.
GROUND SPRING
4035
DAY
DETENT
SPRING
2573
FIG.4
The movement assembly
may now
be disassembled
and serviced as
detailed on pages 50.5 through
50 .12 of the Timex Service Manual.

Reassembly
of
Movement
(model
52)
After
the electronic movement has been serviced
following
the
Model
50
procedures, care must be exercised
in
reassembling the
dial
and
indexing
parts
of
the
Model
51
in
order
to
assure
proper
functioning. ·
First
engage
the Setting Stem
and
Crown into the movement (do
not
put
in
the Date Set Disc Assembly
and
Date Set Detent Spring
at
this time)
and
place the movement
in
the
dial
up position.
Next,
assemble
in
order
as shown
in
figures 2, 3, 4
and
the
exploded
view on
page
52.2.
Center
Wheel
Hour
Wheel
Date
Wheel
Date
Wheel
Stud
Hour
Wheel
Washer
Insert the Day Detent Spring into the
proper
slot in the Dial
Rest
and
carefully
deflect
the end
of
the
spring
until it can be
temporarily
hooked
under
the
edge
of
the Dial
Rest
(see
figure
5).
DAY
DETENT
SPRING
FIG.5
52.5

52.6
Reassembly of Movement (model 52)
Visually examine the Date Ring to be sure it is not bent or damaged .
Place the Date Ring on the
Dial Rest and position it against the end
of the Date Click Spring and the tab on the Date Lever. Position the
Date Ring
as near the center as possible (see figure 2).
Lubrication:
The Day and Date mechanisms must be lubricated before
the Dial is assembled to the movement. (Elgin M56B oil is the watch
lubricant used in the factory) . Apply a small amount of watch oil at :
A. Junction
of Date Lever and Guide Stud
B. Both sides
of Nose of Date Lever
C. Tab of Date Lever (inside surface)
D. Date
Wheel at bearing with Date Wheel Stud
E. Date Click Spring where it contacts Date Ring
F.
Contact surface of Day Detent Spring
Examine the
Day Frame Assembly for damage and be sure the pinion
is free to turn.
(Lubrication: The
bearing seat of the Date Wheel on outer dimension of
the Day Frame should be lubricated with a small amount of watch oil
(Elgin M56B is the watch oil used in the factory ). ) Note the flat on the
edge of the Day Frame Assembly. Holding the Day Frame Assembly so
the flat is toward the crown and parallel to the slot in the Dial Rest, place
it on the movement. Apply light pressure on the Day Frame and move it
slightly until
it is centered and drops into place on the Date Wheel Stud
and into the hole in the Dial Rest (see figure 3) ~
Carefully place the Dial on the movement so the dial legs are in the
slots, then,
holding the dial firmly in place, turn the movement over and
bend the legs to secure the assembly. With a twee;>;er or small screw
driver, reach
through the movement and release the hooked end of the
Day Detent Spring.
Pull the Setting Stem
and Crown into the set position, then with the
movement in the
dial down position, turn the crown clockwise and ob-
serve the movement of the end of the Date Lever. The end of the lever
first deflects
under the plate and then will snap out . When the lever snaps
out, push in the crown,
turn the movement over and assemble the hands
to the
12 o'clock position.

Reassembly
of
Movement
(model
52)
Remove the Setting Stem
and
Crown
Assembly
(see
page
52.3).
Place the
dial
and
movement into the bezel
being
careful
to
position
so
the
movement locating
tab
is
in the
proper
position. Position the
reflector
ring
and
replace the crystal. Turn the
watch
over
and
place
the
Date
Set Detent Spring in the slot in the
Dial
Rest
. Position the Date Set Disc
Assembly on the spring
and
insert the Setti
ng
Stem
and
Crown
through
the Bezel, through the Date Set Disc
and
into the s
et
position in the
movement.
(Lubrication: A small
amount
of
watch
oil (Elgin M56B
is
used in the
factory
) should be
applied
to
one
side
of
the cam lobe
and
to
the
bearing
point
of
the cam on the stem
).
Examine the Energy Cell
Ground
Spring
in the movement to be sure
it
is
in the
proper
position
to
prevent a short circuit
and
to
assure
proper
grounding.
(See figure 4).
Position the
Movement
Cover
in the Bezel,
put
in the Timex Energy Cell
Type A*
and
snap in the case back.
Push
the crown into the run position
and
check
that
watch
runs. Test function
of
the
Day
change
and
the
Date
change.
*Use
of
an
energy
cell
not
meeting TIMEX specifications
may
cause a
Tim
ex
watch
to
malfunction. Timex Energy Cells can be
obtained
from
your
local Timex Retailers
or
Timex
authorized
Watch
Service
Center
.
52.7