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2.
Technical characteristics and performances
2.1
Casing
2.6
Power supply
Diameter
25.60 mm
Silver-oxide battery Ag
2
0, 1,55
V,
capacity 50 mAh
Total height
3.70 mm
Diameter
11 .60 mm
Thickness
2.10 mm
Type RENATA 23
VARTA 533
2.2
Time base
Quartz
oscillator,
tuning-fork type
2.7
Current consumption
Frequency 32 768Hz
,;5 f.tA at 1.55 V
2.8
Self-contained operation
2.3
Frequency adjustment
>
18 months
By means of capacitive trimmer
Correction range 5
s/
d
2.9
Operating limits
Temperatures:
-
10°
to
+
50 °C
2.4
Electronic circuit
Magnetic fields: according to NIHS standard 90-10
Integrated CMOS
Shocks: accord ing to NIHS standard 91-10
2.10
Regulation
2.5
Motor
Rate adjustable between
-
0.35 and
+
0.35
s/
d at
25
°C,
corresponding to a variation of
±
2 minutes
Bipolar rotary stepping
motor,
LA VET
type
per
year.
3. Instructions for use and recommendations
3.1
Hand-setting,
correction of time-zones and date:
by means of three-position multifunction stem
:
1.
Pushed-in position:
Watch operating (motor
on).
2.
Intermediate position:
Correction of time-zones and date. By turning
the stem forwards or
backwards,
the hour hand is
advanced or recoiled by successive steps of one
entire
hour,
without influencing
the
minutes and
seconds indication
.
2.1 Correction of time-zones:
Turn the stem forwards or backwards until the
watch shows the time of the desired time-
zone.
When passing
midnight,
the calendar
automatically shows a new
date,
i.e. the date
of the next day or the date of the preced ing
day,
depending on the direction in which the
correction is being
made.
2.2
Correction of date:
Turn the hour hand forwards o
r
backwards as
many times 24 hours as you wan
t
to
advance
or recoi
l
days.
N. B.: During th ese operat ions
,
the minute hand may have
a little oscillating motion
,
due to the shake of the
wheels.
However,
this does not affect the accuracy of the
display,
the shake be ing automatically equal ized as soon as the
stem is pushed into the operating position
.
3.
Fully extended position:
Watch stopped (motor off)
Position of stocking
.
Hand-setting with second hand stopped.
N. B.: Hand-setting can be made either forwards or
backwards. If it is made
forwards,
it is recommended to
overpass by some minutes the time indicated by the
reference clock
,
and then come back to the exact hour
before push ing the stem
home.
The starting of th
e
second hand is synchronized with the
closing of the electric contact (logic hand-setting func-
tion)
,
the first jump of the second hand occurring one
second after the stem has been pushed back to the
operating position (at the third
"
pip
"
of the speaking
clock
,
for
example).
3.2
Stocking of watches
When the stem is in the position of stocking
,
i.e.
fully extended
,
only
the
motor is switched off. The
oscillator remains in circuit and goes on consuming
a very slight current. If the stocking time exceeds
six
months,
it is therefore recommended to
replace
the battery when the watch is sold.
5
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