OtherFunctions; Rotating Diving Bezel; Measurement Scales; Rotating Compass Bezel - Alpina AL-240 Manual De Instrucciones

3.1
ROTATING
DIVING
BEZEL
An essential feature of all Alpina diving
watches is the unidirectional, anti-clo-
ckwise, rotating bezel, used to control
immersion time. The bezel is fitted with
a graduated scale divided into minutes.
The bezel's working principle is both
simple and reliable. At the beginning of
each immersion, the zero on the bezel
must be aligned with the minute hand. A
simple glance at the position of the mi-
nute hand with respect to the bezel will
show the diver at any moment how much
time has elapsed since the start of the
dive (in minutes).
The unidirectional anti-clockwise rotation
of the bezel is a safety feature that en-
sures that any accidental movement of
the ring will always cause the remaining
diving time to reduce with respect to the
effective remaining diving time.
other functions
All manuals and user guides at all-guides.com
3.2
MEASURE-
MENT
SCALES
Measurement scales are scales that es-
tablish a relation between elapsed time
and another variable. The desired infor-
mation in terms of speed (tachymeter),
distance (telemeter) or units (pulso-
meter, productivity meters) is read off
between the central seconds hand of
the chronograph and the corresponding
scale, over a maximum duration of 60
seconds. For the telemeter, it is possible
to make use of the minutes counter by
adding 20 km to the distance indicated
by the central seconds hand for each
minute elapsed.
TACHYMETERSCALEUSE
Example1:calculating the speed of a car.
Measure the time it takes the car to cover a
distance of 1 km. Read off the speed indi-
cated by the central chronograph seconds
hand on the tachymetric scale. In our exa-
mple, the car is travelling at 90 km/h.
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Tachimètre : 90 km/h
Example1
TELEMETERSCALEUSE
Example 2: calculating the distance
between your position and an upcoming
storm. Start the chronograph when you see
the lightning; then stop the chronograph
when you hear the thunder. Read off the dis-
tance indicated by the central chronograph
hand on the telemetric scale. In our example
the storm is 5 km away from your position.
Example2
Tachimètre : 90 km/h
Télémètre : 5 km
3.3
360°
ROTATING
COMPASS
BEZEL
Alpina watches featuring a 360° ro-
tating compass bezel can roughly
determine directions – a particularly
useful feature for orientation sports
and other adventure or alpine sports.
COMPASS USE INSTRUCTIONS
ON ALPINER 4 CHRONOGRAPH
ANDALPINER4GMT*
Precautions in using a compass bezel:
- Do not use the compass in situa-
tions where accuracy is critical.
The compass only gives a rough
indication of direction.
- Use the compass where the sun is
visible or its location known.
- Your watch must be set to winter
time. If daylight savings time (sum-
mer time) is in effect in your area,
you must set your watch one hour
behind before using the compass
bezel.
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Télém
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