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353_EN / 09.15
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A
II
III
I
B
6
7
5
8
PRECIDRIVE 1/10-second Quartz Chronographs
Congratulations
We congratulate you on choosing a CERTINA
®
PRECIDRIVE chronograph. Meticulously assembled using high-quality materials and components, it is protected
against impacts, temperature variations, water, dust and also benefits from the
DS
concept.
This manual is valid for CERTINA
®
1/10-second quartz chronographs equipped with the PRECIDRIVE
G10 movement. For the settings and operation of your
PRECIDRIVE chronograph, please refer to the instructions below.
Your PRECIDRIVE chronograph allows you to time events lasting up to 30 minutes to a precision of 1/10th of a second, and offers you the following functions:
– Standard chronograph START–STOP function
– ADD function (partial times)
– SPLIT function (intermediate times)
To ensure the operating precision of your chronograph for many years to come, we advise you to pay very careful attention to the advice given in this
manual.
The
DS
(Double Security) concept is characterised by:
– its scratch and impact resistance,
– its tough sapphire crystal,
– a gasket inside the crown and a gasket around the winding stem guaranteeing the water resistance of the watch even when the crown is pulled out,
– a reinforced case back.
Settings
Models with screwed crown
To ensure even better water resistance, some models are fitted with a screwed crown (
8
). Before setting the time or date, you must first unscrew the crown (
8
)
to position
IB
, before pulling it out to position
II
or
III.
Important: After each operation, you must always screw the crown back in to ensure that your watch remains water-resistant. We advise
against operating the crown (8) underwater.
Setting the time
Pull the crown (
8
) out to position
III
; the seconds hand (
3
) will stop, and the chronograph counter hands (
5, 6, 7
) will complete a turn of the dial (entering setting
mode). Turn the crown (
8
) in either direction to the desired time, and then push it back into the rest position
I
. When the hour hand (
1
) passes the 12 o'clock
position, you can see whether it is indicating midnight (the date (
4
) will change), or midday (the date (
4
) will not change).
Advice for synchronising your watch
To synchronise the seconds hand (
3
) with an official time signal (radio/TV/Internet), pull the crown (
8
) out to position
III
; the seconds hand (
3
) will stop.
At the audible signal, push the crown (
8
) back into the rest position
I
.
Rapid date correction
Pull the crown (
8
) out to position
II
. The chronograph counter hands (
5, 6, 7
) will complete a turn of the dial (entering setting mode). Turn the crown (
8
) anti-
clockwise until the desired date is displayed.
Tachymeter (according to model)
The tachymeter allows you to measure the average speed of a moving object. Start timing by pressing pusher (
A
), and stop it by pressing pusher (
B
) once a
distance of 1 km has been reached. The chronograph seconds hand (
6
) will be pointing to the tachymeter scale (
C
), indicating the speed in km/h.
Resetting the chronograph counters
If necessary, the chronograph counters (
5, 6, 7
) must be reset before starting timing. Follow the procedure
below: pull the crown (
8
) out to position
II
the counter hands (
5, 6, 7
) will complete a turn of the dial
(entering setting mode). Each time you press pusher (
A
), a hand will complete turn of the dial (active hand);
you can then return it to its starting position by repeatedly pressing pusher (
B
).
Hand activation order:
1.
1/10-second counter hand (
7
)
2.
60-second counter hand (
6
)
3.
30-minute counter hand (
5
)
