Certina PRECIDRIVE User manual

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II IIII

PRECIDRIVE 1/10-second

Quartz Chronographs

User’s Manual

IA IB

* Models with screwed crown:

IA Initial position (screwed in, not pulled out)

IB Neutral position (unscrewed, not pulled out)

Display and functions

Watch:

Hour hand

Minute hand

Seconds hand

Date indicator

Chronograph:

30-minute counter hand

60-second counter hand

1/10-second counter hand



3-position crown:

Rest position (screwed in*, not pulled out)

Date setting position (unscrewed*, half pulled out)

III

Time-setting position (unscrewed*, completely pulled out)

START/STOP pusher

BSPLIT/RESET pusher

CTachymeter scale

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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)

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Fig. 1

Simple timing

The "simple timing" function enables you to measure individual events.

ASTART

ASTOP

Time readout (as per example in Fig. 1)

- 5 minutes

- 57 seconds

- 3/10ths of a second

BReset

NB: Before each timing operation, the chronograph hands must be at their start points. If necessary, refer to

the paragraph RESETTING THE CHRONOGRAPH COUNTERS.

Note: All the timing functions are available with the crown in the rest position I. In the ﬁrst minute of

timing, 1/10ths of a second are displayed in perceptible real time (10 steps per second) by the 1/10-second

counter hand (7). For the rest of the timing operation, the 1/10-second counter hand (7) remains in the

midday position, and will only display 1/10ths of a second after you press pusher Aor B.

Fig. 2

Fig. 3

Fig. 4

ADD function

The ADD function enables you to measure consecutive events without having to reset to zero in between

each event. Each time recorded is simply added to the previous total (Fig. 2).

ASTART

ASTOP Readout

ARESTART

ASTOP Readout

ARESTART

ASTOP Readout

BReset counters

SPLIT-TIME function

The SPLIT-TIME function enables you to stop the hands to read an intermediate time, without interrupting

the timing. When you restart, the chronograph hands "catch up" to the ongoing elapsed time.

ASTART

BSPLIT 1

Time 1 readout (as per Fig. 1)

- 5 minutes

- 57 seconds

- 3/10ths of a second

BRESTART (catch-up)

BSPLIT 2

Time 2 readout (as per Fig. 3)

- 10 minutes

- 15 seconds

- 5/10ths of a second

BRESTART (catch-up)

ASTOP

Final time readout (as per Fig. 4)

- 15 minutes

- 45 seconds

- 8/10ths of a second

BReset counters

PRECIDRIVE 1/10-second Quartz Chronographs

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Technical information

Winding

Quartz watches do not need to be wound.

PRECIDRIVE

PRECIDRIVE quartz chronographs, from CERTINA®, can boast not only the precision of quartz, but also their temperature variation compensated (thermo-

compensated) rate, which is insensitive to moisture. This enables them to achieve a precision of around +/- 10 seconds per year (under normal conditions of

use).

EOL function - (End of Life)

By means of a seconds hand (3) jump every 4 seconds, your chronograph tells you that the battery has reached its end of life, and will soon need to be replaced.

You can no longer use the timing function approximately one hour after EOL mode has activated.

Care and maintenance

We would advise you to clean your chronograph regularly (except for the leather strap) using a soft cloth and lukewarm soapy water. After immersion in salt

water, rinse it in fresh water and leave it to dry completely.

Do not leave it anywhere exposed to high variations in temperature or humidity, direct sunlight or strong magnetic ﬁelds.

We recommend that you have your watch inspected every 3 to 4 years by your approved CERTINA®representative or retailer. To enjoy meticulous standards of

service and to ensure your guarantee remains in force, please always consult an approved CERTINA®representative or retailer.

If you plan not to wear your chronograph for several weeks or months, we would advise you to store it with the crown (8) pulled out to position III. This cuts

the electrical power supply to the motor, thereby extending battery life considerably.

Replacing the battery

The run time of a PRECIDRIVE chronograph from CERTINA®is generally more than 2 years in continuous use. Once the battery has been drained, it must be

replaced without delay by an approved CERTINA®representative or retailer.

Battery type: silver oxide and zinc button cell, 1.55 V, No. 384, SR 836 SW.

Collection and treatment of end-of-life quartz watches*

This symbol indicates that this product should not be disposed of as household waste. It must be returned to an approved collection point. By following