Eberhard Extra-fort, User Manual

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PUSH BUTTONS
Make sure push-buttons are always pressed in the following order:
A
: start
A
: stop
B
: return to zero
Abide by this sequence quite severely so as to preclude damage to the mechanism.
Never make use of the push-buttons under water since they are not watertight while being pressed.
OPERATING INSTRUCTIONS FOR THE CHRONOGRAPH
Press the push-button
A
to start the chronograph mechanism. Press the push-button a second time to stop the chronograph
mechanism. You can now read on the counters how many seconds
G
and minutes
H
have elapsed. Press the push-button again
and the chronograph will restart from the intermediate stop. To return to zero, the chronograph must be in the stop position. Press
the second push-button
B
and all hands will return to zero. You are advised not to leave the chronograph mechanism operating
continuously.
HOW TO USE THE TACHOMETER SCALE
The outer rim on the dial shows the data needed for metering the speed of a vehicle over a distance of 1,000 metres. The
moment the vehicle passes the first reading marking the beginning of said 1,000m distance, activate the hand
G
of the
chronograph to bring it to a stop the moment the vehicle passes the second reading mark. Said hand
G
will now indicate
the average speed reached in km/h in tune with the tachometer scale.
Example: when one kilometre is covered within 45 seconds, the average speed displayed by the centre seconds-hand
G
on
the tachometer scale will be tantamount to a speed of 80km/h.
1/5 SECOND SCALE
The division on the dial of this model
M
enables the user to make observations not just to approximately a second, but to
the order of 1/5 second.
DIRECTIONS FOR USE OF WATERTIGHT WATCHES
You may wear your “Extra-fort Edition Vitrée” when in the water or when taking a shower, but it is not fit for breath-held
diving, plunging or diving activities. Important: we strongly recommend that you have the crown well tightened before
possible contacts with water. Do not activate the pushbuttons nor manipulate the crown as long as the watch is wet or in
the water. After using in seawater, rinse the watch under fresh water. Exposure to temperature shocks should be avoided.
We recommend that you have the water-resistance checked at least once a year by a qualified technical service facility in
order to find out if the gaskets need to be replaced.