![background image](http://html1.mh-extra.com/html/omega/2503-80-00/2503-80-00_user-manual_4227451007.webp)
14
15
English
Quartz chronograph
Operating instructions
2
The time, hours, minutes and seconds functions are driven by a
primary motor using traditional quartz watch technology.
The chronograph functions are provided by a combination of quartz
and mechanical technology. The chronograph hand, driven by a sepa-
rate motor, makes 16 jumps per second. Its movement appears con-
tinuous and it can be read off the scale to within 1/10th of a second.
The reset function, like the minute and hour totaliser functions, is car-
ried out mechanically. The return to zero is instantaneous.
In order to reduce energy consumption to a minimum, the chronograph
automatically stops after more than 11 hours of operation.
The crown has 3 positions:
Watch functions:
1.
Normal position (wearing position):
when the crown is posi-
tioned against the case, the crown ensures that the watch is water-
resistant.
2.
Correcting the date:
pull the crown out to position 2, turn the
crown forwards until the required date is displayed, then push the
crown back to position 1.
NB:
it is impossible to set the date between 8pm and 2am.
3.
Time setting:
pull the crown out to position 3. The seconds hand
will stop. Turn the crown forwards or backwards. Synchronise the
seconds by pushing the crown back to position 1 to coincide with
a given time signal.
Chronograph functions:
•
Pusher A:
start – stop, start – stop etc.
Timing to within 1/10th of a second up to 11 hours.
•
Pusher B:
reset (after stopping).
Í
The hours, minutes, seconds and chronograph functions are driven
by 4 motors using conventional quartz technology.
The crown has 3 positions:
Watch functions:
1.
Normal position (wearing position):
when the crown is posi-
tioned against the case, the crown guarantees the watch is water-
resistant.
2.
Time zone correction or 30 minutes totaliser hand initiali-
sation.
3.
Time setting:
pull the crown out to position 3. The seconds hand
will stop. Turn the crown forwards or backwards. Synchronise
the seconds by pushing the crown into position 1 to coincide
with a given time signal; resetting the 1/10th of a second and
60 second totalisers.
Chronograph functions:
Allows the time to be read off to
1/10th of a second up to 30 min-
utes in the simple, addition or split
modes (reading split times, interme-
diate times).
Simple timing function
(crown in position 1):
•
Pusher A:
start – stop (read time)
•
Pusher B:
reset
CALIBRE 5200
2 Operating instructions
Quartz chronograph
CALIBRE 1270
(fig. X)
Note:
if the chronograph has stopped after 11 hours in order to
conserve energy, it cannot be reset without pressing pusher A
beforehand.
OMEGA_V12-I.indb Abs1:14-Abs1:15
OMEGA_V12-I.indb Abs1:14-Abs1:15
28/12/09 18:30:25
28/12/09 18:30:25